ZSI_Reconnect_China/PATSTAT/CPC_data/CPCSchemeXML202302/cpc-scheme-F01N.xml

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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="F01N" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>F01N</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL</text></title-part><title-part><text>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES </text><reference><CPC-specific-text><text>evacuation of fumes from the area where they are produced <class-ref scheme="cpc">B08B15/00</class-ref>; arrangement of exhaust or silencing apparatus on percussive tools <class-ref scheme="cpc">B25D17/12</class-ref></text></CPC-specific-text><text> ; arrangements in connection with gas exhaust of propulsion units in vehicles <class-ref scheme="cpc">B60K13/00</class-ref>, </text><CPC-specific-text><text>on ships or other waterborne vessels <class-ref scheme="cpc">B63H21/32</class-ref>, on aircraft <class-ref scheme="cpc">B64D33/04</class-ref>; arrangement of exhaust or silencing apparatus on firearms <class-ref scheme="cpc">F41A21/30</class-ref>; ground installations for reducing aircraft engine or jet noise <class-ref scheme="cpc">B64F1/26</class-ref>; silencers specially adapted for steam engines <class-ref scheme="cpc">F01B31/16</class-ref>; air-intake silencers for gas turbine or jet propulsion plants <class-ref scheme="cpc">F02C7/045</class-ref>; jet pipe or nozzles for jet propulsion plants <class-ref scheme="cpc">F02K</class-ref></text></CPC-specific-text><text> ; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines <class-ref scheme="cpc">F02M35/00</class-ref>; </text><CPC-specific-text><text>combating noise or silencing in positive displacement machines or pumps <class-ref scheme="cpc">F04B39/0027</class-ref>, in rotary-piston machines or pumps <class-ref scheme="cpc">F04C29/06</class-ref>, in non-positive displacement pumps <class-ref scheme="cpc">F04D29/66</class-ref>; means in valves for absorbing noise <class-ref scheme="cpc">F16K47/02</class-ref>; noise absorbers in pipe system <class-ref scheme="cpc">F16L55/02</class-ref>; conducting smoke or fumes from various locations to the outside <class-ref scheme="cpc">F23J11/00</class-ref>; means for preventing or suppressing noise in air-conditioning or ventilation systems <class-ref scheme="cpc">F24F13/24</class-ref></text></CPC-specific-text><text> ; protecting against, or damping, noise in general <class-ref scheme="cpc">G10K11/16</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>Attention is drawn to the notes preceding Class <class-ref scheme="cpc">F01</class-ref>, especially as regards Note 2(b).</note-paragraph></note><note type="warning"><note-paragraph>In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F01N1/00" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/00</classification-symbol>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01N1/00" definition-exists="true" ipc-concordant="F01N1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silencing apparatus characterised by method of silencing </text><CPC-specific-text><reference><text>by cooling <class-ref scheme="cpc">F01N3/02</class-ref>; using liquids <class-ref scheme="cpc">F01N3/04</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N1/003" definition-exists="false" ipc-concordant="F01N1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using dead chambers communicating with gas flow passages </text><reference><text>resonance chambers <class-ref scheme="cpc">F01N1/02</class-ref>; chambers containing sound-absorbing materials <class-ref scheme="cpc">F01N1/24</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/006" definition-exists="false" ipc-concordant="F01N1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising at least one perforated tube extending from inlet to outlet of the silencer</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N1/02" definition-exists="false" ipc-concordant="F01N1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using resonance</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/023" definition-exists="false" ipc-concordant="F01N1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Helmholtz resonators</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/026" definition-exists="false" ipc-concordant="F01N1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Annular resonance chambers arranged concentrically to an exhaust passage and communicating with it, e.g. via at least one opening in the exhaust passage</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/04" definition-exists="false" ipc-concordant="F01N1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having sound-absorbing materials in resonance chambers</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N1/06" definition-exists="false" ipc-concordant="F01N1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using interference effect</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/065" definition-exists="false" ipc-concordant="F01N1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using an active noise source, e.g. speakers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N1/08" definition-exists="false" ipc-concordant="F01N1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by reducing exhaust energy by throttling or whirling</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/081" definition-exists="false" ipc-concordant="F01N1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by passing the gases through a mass of particles</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/082" definition-exists="false" ipc-concordant="F01N1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the gases passing through porous members </text><reference><text><class-ref scheme="cpc">F01N1/081</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/083" definition-exists="false" ipc-concordant="F01N1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using transversal baffles defining a tortuous path for the gases or successively throttling gas flow</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/084" definition-exists="false" ipc-concordant="F01N1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/085" definition-exists="false" ipc-concordant="F01N1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a central core throttling gas passage</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/086" definition-exists="false" ipc-concordant="F01N1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having means to impart whirling motion to the gases </text><reference><text>with helically or spirally shaped channels <class-ref scheme="cpc">F01N1/12</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N1/087" definition-exists="false" ipc-concordant="F01N1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using tangential inlets into a circular chamber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N1/088" definition-exists="false" ipc-concordant="F01N1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using vanes arranged on gas flow path or gas flow tubes with tangentially directed apertures</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/089" definition-exists="false" ipc-concordant="F01N1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/089</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using two or more expansion chambers in series </text><reference><text><class-ref scheme="cpc">F01N1/083</class-ref>, <class-ref scheme="cpc">F01N1/084</class-ref>, <class-ref scheme="cpc">F01N1/086</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/10" definition-exists="false" ipc-concordant="F01N1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in combination with sound-absorbing materials </text><reference><text><class-ref scheme="cpc">F01N1/125</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/12" definition-exists="false" ipc-concordant="F01N1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using spirally or helically shaped channels </text><reference><text>cyclones <class-ref scheme="cpc">B04C</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N1/125" definition-exists="false" ipc-concordant="F01N1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in combination with sound-absorbing materials</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N1/14" definition-exists="false" ipc-concordant="F01N1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by adding air to exhaust gases </text><CPC-specific-text><reference><text>in tailpipes <class-ref scheme="cpc">F01N13/082</class-ref>, <class-ref scheme="cpc">F01N13/20</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N1/16" definition-exists="false" ipc-concordant="F01N1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using movable parts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/161" definition-exists="false" ipc-concordant="F01N1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/161</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for adjusting resonance or dead chambers or passages to resonance or dead chambers</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N1/163" definition-exists="false" ipc-concordant="F01N1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/163</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/165" definition-exists="false" ipc-concordant="F01N1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for adjusting flow area</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/166" definition-exists="false" ipc-concordant="F01N1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe </text><reference><text><class-ref scheme="cpc">F01N1/165</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/168" definition-exists="false" ipc-concordant="F01N1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/168</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for controlling or modifying silencing characteristics only</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/18" definition-exists="false" ipc-concordant="F01N1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having rotary movement</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/20" definition-exists="false" ipc-concordant="F01N1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having oscillating or vibrating movement </text><CPC-specific-text><reference><text>the parts being resilient walls <class-ref scheme="cpc">F01N1/22</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N1/22" definition-exists="false" ipc-concordant="F01N1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the parts being resilient walls</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N1/24" definition-exists="false" ipc-concordant="F01N1/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N1/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using sound-absorbing materials </text><reference><text><class-ref scheme="cpc">F01N1/04</class-ref>, <class-ref scheme="cpc">F01N1/06</class-ref>, <class-ref scheme="cpc">F01N1/10</class-ref>, <class-ref scheme="cpc">F01N1/14</class-ref>, <class-ref scheme="cpc">F01N1/16</class-ref> take precedence</text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01N3/00" definition-exists="true" ipc-concordant="F01N3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01N3/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust </text><reference><text>electric control <class-ref scheme="cpc">F01N9/00</class-ref>; monitoring or diagnostic devices for exhaust-gas treatment apparatus <class-ref scheme="cpc">F01N11/00</class-ref>  </text><CPC-specific-text><text>; collecting or removing exhaust gases of vehicle engines in workshops <class-ref scheme="cpc">B08B15/00</class-ref>, on highways <class-ref scheme="cpc">E01C1/005</class-ref></text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N3/005" definition-exists="false" ipc-concordant="F01N3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for draining or otherwise eliminating condensates or moisture accumulating in the apparatus </text><reference><text><class-ref scheme="cpc">F01N3/02</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N3/01" definition-exists="false" ipc-concordant="F01N3/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of electric or electrostatic separators</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N3/02" definition-exists="false" ipc-concordant="F01N3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>F01N3/02</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>for cooling, or for removing solid constituents of, exhaust </text><reference><text>by means of electric or electrostatic separators <class-ref scheme="cpc">F01N3/01</class-ref> </text><CPC-specific-text><text>; mixing air with exhaust in tailpipes <class-ref scheme="cpc">F01N13/082</class-ref>, <class-ref scheme="cpc">F01N13/20</class-ref></text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N3/0205" definition-exists="false" ipc-concordant="F01N3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using heat exchangers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N3/021" definition-exists="false" ipc-concordant="F01N3/021" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of filters</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/0211" definition-exists="false" ipc-concordant="F01N3/021" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0211</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/0212" definition-exists="false" ipc-concordant="F01N3/021" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0212</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with one or more perforated tubes surrounded by filtering material, e.g. filter candles</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/0214" definition-exists="false" ipc-concordant="F01N3/021" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0214</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with filters comprising movable parts, e.g. rotating filters</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/0215" definition-exists="false" ipc-concordant="F01N3/021" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0215</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the filtering elements having the form of disks or plates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/0217" definition-exists="false" ipc-concordant="F01N3/021" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0217</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the filtering elements having the form of hollow cylindrical bodies</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/0218" definition-exists="false" ipc-concordant="F01N3/021" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0218</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the filtering elements being made from spirally-wound filtering material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/022" definition-exists="false" ipc-concordant="F01N3/022" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0222" definition-exists="false" ipc-concordant="F01N3/022" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the structure being monolithic, e.g. honeycombs</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0224" definition-exists="false" ipc-concordant="F01N3/022" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0224</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the structure being granular</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0226" definition-exists="false" ipc-concordant="F01N3/022" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0226</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the structure being fibrous</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0228" definition-exists="false" ipc-concordant="F01N3/022" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0228</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the structure being made of foamed rubber or plastics</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/023" definition-exists="false" ipc-concordant="F01N3/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using means for regenerating the filters, e.g. by burning trapped particles </text><reference><text>by electrically controlling the supply of combustible mixture or its constituents only <class-ref scheme="cpc">F02D41/0235</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0231" definition-exists="false" ipc-concordant="F01N3/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0231</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0232" definition-exists="false" ipc-concordant="F01N3/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0232</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>removing incombustible material from a particle filter, e.g. ash</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0233" definition-exists="false" ipc-concordant="F01N3/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0233</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0234" definition-exists="false" ipc-concordant="F01N3/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0234</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using heat exchange means in the exhaust line</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0235" definition-exists="false" ipc-concordant="F01N3/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0235</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using exhaust gas throttling means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0236" definition-exists="false" ipc-concordant="F01N3/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0236</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using turbine waste gate valve</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0237" definition-exists="false" ipc-concordant="F01N3/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0237</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for regenerating ex situ</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0238" definition-exists="false" ipc-concordant="F01N3/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0238</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for regenerating during engine standstill</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/025" definition-exists="false" ipc-concordant="F01N3/025" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using fuel burner or by adding fuel to exhaust</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/0253" definition-exists="false" ipc-concordant="F01N3/025" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0253</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>adding fuel to exhaust gases</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/0256" definition-exists="false" ipc-concordant="F01N3/025" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0256</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fuel being ignited by electrical means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/027" definition-exists="false" ipc-concordant="F01N3/027" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using electric or magnetic heating means</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/0275" definition-exists="false" ipc-concordant="F01N3/027" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0275</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric discharge means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/028" definition-exists="false" ipc-concordant="F01N3/028" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using microwaves</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/029" definition-exists="false" ipc-concordant="F01N3/029" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/029</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by adding non-fuel substances to exhaust</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/0293" definition-exists="false" ipc-concordant="F01N3/029" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0293</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>injecting substances in exhaust stream</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/0296" definition-exists="false" ipc-concordant="F01N3/029" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0296</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having means for preheating additional substances</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/031" definition-exists="false" ipc-concordant="F01N3/031" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/031</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having means for by-passing filters, e.g. when clogged or during cold engine start</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/032" definition-exists="false" ipc-concordant="F01N3/032" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/032</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>during filter regeneration only</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/033" definition-exists="false" ipc-concordant="F01N3/033" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/033</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in combination with other devices </text><CPC-specific-text><reference><text>with adsorbents or absorbents <class-ref scheme="cpc">F01N3/0821</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0335" definition-exists="false" ipc-concordant="F01N3/033" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0335</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with exhaust silencers in a single housing</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/035" definition-exists="false" ipc-concordant="F01N3/035" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01N3/035</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>with catalytic reactors </text><CPC-specific-text><text>, e.g. catalysed diesel particulate filters</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N3/037" definition-exists="false" ipc-concordant="F01N3/037" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/037</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N3/038" definition-exists="false" ipc-concordant="F01N3/038" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/038</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of perforated plates defining expansion chambers associated with condensation and collection chambers, e.g. for adiabatic expansion of gases and subsequent collection of condensed liquids</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N3/04" definition-exists="false" ipc-concordant="F01N3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using liquids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/043" definition-exists="false" ipc-concordant="F01N3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>without contact between liquid and exhaust gases</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/046" definition-exists="false" ipc-concordant="F01N3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Exhaust manifolds with cooling jacket</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N3/05" definition-exists="false" ipc-concordant="F01N3/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01N3/05</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>by means of air, e.g. by mixing exhaust with air </text><reference><text>silencers working by addition of air to exhaust <class-ref scheme="cpc">F01N1/14</class-ref>; arrangements for the supply of additional air for the thermal or catalytic conversion of noxious components of exhaust <class-ref scheme="cpc">F01N3/30</class-ref>  </text><CPC-specific-text><text>; in tailpipes <class-ref scheme="cpc">F01N13/082</class-ref></text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/055" definition-exists="false" ipc-concordant="F01N3/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/055</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>without contact between air and exhaust gases</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N3/06" definition-exists="false" ipc-concordant="F01N3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for extinguishing sparks</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N3/08" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for rendering innocuous </text><reference><text>using electric or electrostatic separators <class-ref scheme="cpc">F01N3/01</class-ref>; chemical aspects <class-ref scheme="cpc">B01D53/92</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N3/0807" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0807</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using absorbents or adsorbents</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/0814" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0814</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/0821" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0821</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>combined with particulate filters </text><reference><text>catalysed diesel particulate filters <class-ref scheme="cpc">F01N3/035</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/0828" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0828</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the absorbed or adsorbed substances</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0835" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0835</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hydrocarbons</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0842" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0842</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nitrogen oxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/085" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sulfur or sulfur oxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0857" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0857</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbon oxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0864" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0864</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oxygen</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/0871" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0871</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Regulation of absorbents or adsorbents, e.g. purging </text><reference><text>by electrically controlling the supply of combustible mixture or its constituents only <class-ref scheme="cpc">F02D41/0235</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0878" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0878</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bypassing absorbents or adsorbents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/0885" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0885</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N3/0892" definition-exists="false" ipc-concordant="F01N3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/0892</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electric or magnetic treatment, e.g. dissociation of noxious components </text><reference><text>electric filters <class-ref scheme="cpc">F01N3/01</class-ref>; regeneration of exhaust filters <class-ref scheme="cpc">F01N3/023</class-ref>; heating catalytic converters <class-ref scheme="cpc">F01N3/2006</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N3/10" definition-exists="false" ipc-concordant="F01N3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-11-01" status="published"><classification-symbol>F01N3/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by thermal or catalytic conversion of noxious components of exhaust </text><reference><text>by using other chemical processes, chemical aspects of catalytic conversion, e.g. using specified catalysts, <class-ref scheme="cpc">B01D53/34</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/101" definition-exists="false" ipc-concordant="F01N3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Three-way catalysts</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/103" definition-exists="false" ipc-concordant="F01N3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oxidation catalysts for HC and CO only</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/105" definition-exists="false" ipc-concordant="F01N3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>General auxiliary catalysts, e.g. upstream or downstream of the main catalyst</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/106" definition-exists="false" ipc-concordant="F01N3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Auxiliary oxidation catalysts</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/108" definition-exists="false" ipc-concordant="F01N3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/108</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Auxiliary reduction catalysts</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/18" definition-exists="false" ipc-concordant="F01N3/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>F01N3/18</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>characterised by methods of operation</text></title-part><title-part><text>Control</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/20" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>F01N3/20</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>specially adapted for catalytic conversion </text><reference><text><class-ref scheme="cpc">F01N3/22</class-ref> takes precedence</text></reference><CPC-specific-text><text>; Methods of operation or control of catalytic converters</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/2006" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating </text><reference><text>by electrically controlling the supply of combustible mixture or its constituents only <class-ref scheme="cpc">F02D41/0235</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2013" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2013</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric or magnetic heating means</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F01N3/202" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/202</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using microwaves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F01N3/2026" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2033" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a fuel burner or introducing fuel into exhaust duct</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/204" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/204</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using an exhaust gas igniter, e.g. a spark or glow plug, without introducing fuel into exhaust duct</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2046" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Periodically cooling catalytic reactors</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/2053" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>By-passing catalytic reactors, e.g. to prevent overheating</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/206" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents </text><reference><text><class-ref scheme="cpc">F01N3/2066</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/2066" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-11-01" status="published"><classification-symbol>F01N3/2066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Selective catalytic reduction [SCR]</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2073" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means for generating a reducing substance from the exhaust gases</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/208" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/208</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/2086" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Activating the catalyst by light, photo-catalysts</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/2093" definition-exists="false" ipc-concordant="F01N3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Periodically blowing a gas through the converter, e.g. in a direction opposite to exhaust gas flow or by reversing exhaust gas flow direction</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/22" definition-exists="false" ipc-concordant="F01N3/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>F01N3/22</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>Control of additional air supply only, e.g. using by-passes or variable air pump drives</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/222" definition-exists="false" ipc-concordant="F01N3/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric valves only</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/225" definition-exists="false" ipc-concordant="F01N3/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electric control of additional air supply</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/227" definition-exists="false" ipc-concordant="F01N3/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/227</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using pneumatically operated valves, e.g. membrane valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N3/24" definition-exists="false" ipc-concordant="F01N3/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by constructional aspects of converting apparatus </text><reference><text>filtering in combination with catalytic reactors <class-ref scheme="cpc">F01N3/035</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/26" definition-exists="false" ipc-concordant="F01N3/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Construction of thermal reactors</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/28" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Construction of catalytic reactors</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/2803" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2803</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by structure, by material or by manufacturing of catalyst support</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2807" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2807</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Metal other than sintered metal </text><reference><text><class-ref scheme="cpc">F01N3/2832</class-ref> and <class-ref scheme="cpc">F01N3/2835</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F01N3/281" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/281</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="F01N3/2814" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2814</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>all sheets, plates or foils being corrugated</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="F01N3/2817" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2817</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>only with non-corrugated sheets, plates or foils</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="F01N3/2821" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2821</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the support being provided with means to enhance the mixing process inside the converter, e.g. sheets, plates or foils with protrusions or projections to create turbulence</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2825" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2825</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ceramics </text><reference><text><class-ref scheme="cpc">F01N3/2832</class-ref>, <class-ref scheme="cpc">F01N3/2835</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F01N3/2828" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2828</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ceramic multi-channel monoliths, e.g. honeycombs</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2832" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2832</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>granular, e.g. pellets</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2835" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2835</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>fibrous</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/2839" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2839</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2842" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F01N3/2842</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>specially adapted for monolithic supports, e.g. of honeycomb type </text><reference><text><class-ref scheme="cpc">F01N3/2853</class-ref>&#160;-&#160;<class-ref scheme="cpc">F01N3/2871</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2846" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2846</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for granular supports, e.g. pellets</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/285" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for fibrous supports, e.g. held in place by screens</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2853" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>F01N3/2853</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>using mats or gaskets between catalyst body and housing</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F01N3/2857" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2857</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the mats or gaskets being at least partially made of intumescent material, e.g. unexpanded vermiculite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F01N3/286" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-11-01" status="published"><classification-symbol>F01N3/286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the mats or gaskets having corrugations or cavities</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F01N3/2864" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2864</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the mats or gaskets comprising two or more insulation layers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F01N3/2867" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-11-01" status="published"><classification-symbol>F01N3/2867</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the mats or gaskets being placed at the front or end face of catalyst body</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F01N3/2871" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-11-01" status="published"><classification-symbol>F01N3/2871</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the mats or gaskets having an additional, e.g. non-insulating or non-cushioning layer, a metal foil or an adhesive layer</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2875" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F01N3/2875</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>by using elastic means, e.g. spring leaves, for retaining catalyst body in the housing </text><reference><text><class-ref scheme="cpc">F01N3/2853</class-ref>&#160;-&#160;<class-ref scheme="cpc">F01N3/2871</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2878" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2878</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using non-elastic means for retaining catalyst body in the housing, e.g. a metal chamfer, or by corrugation or deformation of the metal housing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/2882" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2882</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices </text><reference><text>combined with absorbents or adsorbents only <class-ref scheme="cpc">F01N3/0814</class-ref>; combined with particulate filters <class-ref scheme="cpc">F01N3/035</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2885" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2885</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with exhaust silencers in a single housing</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/2889" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2889</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with heat exchangers in a single housing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/2892" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2892</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Exhaust flow directors or the like, e.g. upstream of catalytic device</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/2896" definition-exists="false" ipc-concordant="F01N3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/2896</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Liquid catalyst carrier</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/30" definition-exists="false" ipc-concordant="F01N3/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>F01N3/30</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>Arrangements for supply of additional air </text><reference><text>control, e.g. using by-passes or variable air pump drives, <class-ref scheme="cpc">F01N3/22</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/303" definition-exists="false" ipc-concordant="F01N3/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/303</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Filtering additional air</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/306" definition-exists="false" ipc-concordant="F01N3/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/306</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preheating additional air</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/32" definition-exists="false" ipc-concordant="F01N3/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using air pump </text><reference><text>using jet air pumps <class-ref scheme="cpc">F01N3/34</class-ref>; pumps in general <class-ref scheme="cpc">F04</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/323" definition-exists="false" ipc-concordant="F01N3/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/323</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrically driven air pumps</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01N3/326" definition-exists="false" ipc-concordant="F01N3/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/326</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Engine-driven air pumps</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01N3/34" definition-exists="false" ipc-concordant="F01N3/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using air conduits or jet air pumps, e.g. near the engine exhaust port</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/36" definition-exists="false" ipc-concordant="F01N3/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for supply of additional fuel</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N3/38" definition-exists="false" ipc-concordant="F01N3/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N3/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for igniting</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01N5/00" definition-exists="true" ipc-concordant="F01N5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>F01N5/00</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy </text><reference><text>using kinetic or wave energy of exhaust gases in exhaust systems for charging <class-ref scheme="cpc">F02B</class-ref>; predominant aspects of such devices, <u>see</u> the relevant classes for the devices</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N5/02" definition-exists="false" ipc-concordant="F01N5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the devices using heat</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N5/025" definition-exists="false" ipc-concordant="F01N5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-11-01" status="published"><classification-symbol>F01N5/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the device being thermoelectric generators</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N5/04" definition-exists="false" ipc-concordant="F01N5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the devices using kinetic energy</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01N9/00" definition-exists="true" ipc-concordant="F01N9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>F01N9/00</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Electrical control of exhaust gas treating apparatus </text><reference><text>monitoring or diagnostic devices for exhaust-gas treatment apparatus <class-ref scheme="cpc">F01N11/00</class-ref>; conjoint electrical control of two or more combustion engine functions <class-ref scheme="cpc">F02D43/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N9/002" definition-exists="false" ipc-concordant="F01N9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N9/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of filter regeneration, e.g. detection of clogging</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N9/005" definition-exists="false" ipc-concordant="F01N9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N9/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using models instead of sensors to determine operating characteristics of exhaust systems, e.g. calculating catalyst temperature instead of measuring it directly</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N9/007" definition-exists="false" ipc-concordant="F01N9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N9/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Storing data relevant to operation of exhaust systems for later retrieval and analysis, e.g. to research exhaust system malfunctions</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01N11/00" definition-exists="true" ipc-concordant="F01N11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01N11/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Monitoring or diagnostic devices for exhaust-gas treatment apparatus </text><CPC-specific-text><text>, e.g. for catalytic activity </text><reference><text>safety, indicating or supervising devices for internal combustion engines <class-ref scheme="cpc">F02B77/08</class-ref>; testing of machines <class-ref scheme="cpc">G01M13/00</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N11/002" definition-exists="false" ipc-concordant="F01N11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N11/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N11/005" definition-exists="false" ipc-concordant="F01N11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N11/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the temperature or pressure being estimated, e.g. by means of a theoretical model</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N11/007" definition-exists="false" ipc-concordant="F01N11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N11/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01N13/00" definition-exists="true" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01N13/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Exhaust or silencing apparatus characterised by constructional features </text><CPC-specific-text><text>; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups <class-ref scheme="cpc">F01N1/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">F01N5/00</class-ref>, <class-ref scheme="cpc">F01N9/00</class-ref>, <class-ref scheme="cpc">F01N11/00</class-ref></text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/001" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gas flow channels or gas chambers being at least partly formed in the structural parts of the engine or machine </text><reference><text>using structural parts of the vehicle <class-ref scheme="cpc">B60K13/06</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/002" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/004" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for marine propulsion, i.e. for receiving simultaneously engine exhaust gases and engine cooling water </text><reference><text>for submerged exhausting <class-ref scheme="cpc">F01N13/12</class-ref>; treating exhaust by using liquids <class-ref scheme="cpc">F01N3/04</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/005" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with parts constructed of non-metallic material, e.g. of rubber</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/007" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Apparatus used as intake or exhaust silencer </text><reference><text>silencing methods <class-ref scheme="cpc">F01N1/00</class-ref>; intake silencers <class-ref scheme="cpc">F02M35/12</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/008" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mounting or arrangement of exhaust sensors in or on exhaust apparatus </text><reference><text>sensor arrangements for engine control <class-ref scheme="cpc">F02D41/1439</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/009" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-06-01" status="published"><classification-symbol>F01N13/009</classification-symbol><class-title><title-part><CPC-specific-text><text>having two or more separate purifying devices arranged in series</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/0093" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-06-01" status="published"><classification-symbol>F01N13/0093</classification-symbol><class-title><title-part><CPC-specific-text><text>the purifying devices are of the same type</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/0097" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-06-01" status="published"><classification-symbol>F01N13/0097</classification-symbol><class-title><title-part><CPC-specific-text><text>the purifying devices are arranged in a single housing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/011" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-06-01" status="published"><classification-symbol>F01N13/011</classification-symbol><class-title><title-part><CPC-specific-text><text>having two or more purifying devices arranged in parallel</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/017" definition-exists="false" ipc-concordant="F01N13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-06-01" status="published"><classification-symbol>F01N13/017</classification-symbol><class-title><title-part><CPC-specific-text><text>the purifying devices are arranged in a single housing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/02" definition-exists="false" ipc-concordant="F01N13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or more separate silencers in series</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/04" definition-exists="false" ipc-concordant="F01N13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F01N13/04</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>having two or more silencers in parallel, e.g. having interconnections for multi-cylinder engines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/06" definition-exists="false" ipc-concordant="F01N13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for star-arrangement of cylinders, e.g. exhaust manifolds</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/08" definition-exists="false" ipc-concordant="F01N13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other arrangements or adaptations of exhaust conduits </text><CPC-specific-text><reference><text>pipes, joints or supports therefor in general <class-ref scheme="cpc">F16L</class-ref>; collecting or removing exhaust gases of vehicle engines in workshops <class-ref scheme="cpc">B08B15/00</class-ref>, on highways <class-ref scheme="cpc">E01C1/005</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/082" definition-exists="false" ipc-concordant="F01N13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation </text><reference><text><class-ref scheme="cpc">F01N13/20</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/085" definition-exists="false" ipc-concordant="F01N13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having means preventing foreign matter from entering exhaust conduit</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/087" definition-exists="false" ipc-concordant="F01N13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having valves upstream of silencing apparatus for by-passing at least part of exhaust directly to atmosphere </text><reference><text>valves for changing gas flow path through the silencer <class-ref scheme="cpc">F01N1/166</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/10" definition-exists="false" ipc-concordant="F01N13/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of exhaust manifolds </text><CPC-specific-text><reference><text>with cooling jacket <class-ref scheme="cpc">F01N3/046</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/102" definition-exists="false" ipc-concordant="F01N13/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having thermal insulation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/105" definition-exists="false" ipc-concordant="F01N13/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having the form of a chamber directly connected to the cylinder head, e.g. without having tubes connected between cylinder head and chamber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/107" definition-exists="false" ipc-concordant="F01N13/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>More than one exhaust manifold or exhaust collector</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/12" definition-exists="false" ipc-concordant="F01N13/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for submerged exhausting</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/14" definition-exists="false" ipc-concordant="F01N13/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having thermal insulation </text><CPC-specific-text><reference><text>exhaust manifolds <class-ref scheme="cpc">F01N13/102</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/141" definition-exists="false" ipc-concordant="F01N13/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/141</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Double-walled exhaust pipes or housings</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/143" definition-exists="false" ipc-concordant="F01N13/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with air filling the space between both walls</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/145" definition-exists="false" ipc-concordant="F01N13/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with gas other than air filling the space between both walls</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/146" definition-exists="false" ipc-concordant="F01N13/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with vacuum in the space between both walls</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/148" definition-exists="false" ipc-concordant="F01N13/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/148</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiple layers of insulating material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/16" definition-exists="false" ipc-concordant="F01N13/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of particular materials</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/18" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Construction facilitating manufacture, assembly, or disassembly</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/1805" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1805</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body </text><reference><text>pipe joints in general <class-ref scheme="cpc">F16L</class-ref>; fixing auxiliaries in motor vehicles in general <class-ref scheme="cpc">B60K</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/1811" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1811</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means permitting relative movement, e.g. compensation of thermal expansion or vibration</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N13/1816" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1816</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N13/1822" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1822</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for fixing exhaust pipes or devices to vehicle body</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/1827" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1827</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealings specially adapted for exhaust systems </text><reference><text>sealings in general <class-ref scheme="cpc">F16J15/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/1833" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1833</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for small internal combustion engines, e.g. used in model applications</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/1838" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1838</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/1844" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1844</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mechanical joints</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N13/185" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the connection being realised by deforming housing, tube, baffle, plate, or parts thereof</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01N13/1855" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1855</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the connection being realised by using bolts, screws, rivets or the like</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/1861" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1861</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the assembly using parts formed by casting or moulding</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/1866" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1866</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the channels or tubes thereof being made integrally with the housing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/1872" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1872</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the assembly using stamp-formed parts or otherwise deformed sheet-metal</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/1877" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1877</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the channels or tubes thereof being made integrally with the housing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/1883" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1883</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>manufactured by hydroforming</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01N13/1888" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1888</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the housing of the assembly consisting of two or more parts, e.g. two half-shells</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01N13/1894" definition-exists="false" ipc-concordant="F01N13/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/1894</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the parts being assembled in longitudinal direction</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01N13/20" definition-exists="false" ipc-concordant="F01N13/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N13/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having flared outlets, e.g. of fish-tail shape</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01N99/00" definition-exists="false" ipc-concordant="F01N99/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>F01N99/00</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Subject matter not provided for in other groups of this subclass</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N210/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2210/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combination of methods of silencing</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N210/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2210/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Resonance and interference</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N210/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2210/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Throttling-expansion and resonance</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N210/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2210/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Throttling-expansion and interference</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N230/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2230/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combination of silencers and other devices</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N230/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2230/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Exhaust filters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N230/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2230/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Catalytic converters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N230/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2230/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spark arresters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N230/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2230/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Thermal reactors</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N240/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes <class-ref scheme="cpc">F01N2230/00</class-ref> or <class-ref scheme="cpc">F01N2250/00</class-ref>, one of the devices being</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a heat exchanger</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>an electric, e.g. electrostatic, device other than a heater</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/05" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a magnetic, e.g. electromagnetic, device other than a valve</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>an inertial, e.g. centrifugal, device</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a heat accumulator</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a thermal reactor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a fuel burner</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/16" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>an electric heater, i.e. a resistance heater</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>an adsorber or absorber</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a flow director or deflector</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/22" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a condensation chamber</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/25" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/25</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>an ammonia generator</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/26" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>an exhaust gas reservoir, e.g. emission buffer</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/28" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a plasma reactor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/30" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a fuel reformer</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/32" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a fuel cell</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/34" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>an electrolyser</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/36" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>an exhaust flap</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/38" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>an ozone (O<sub>3</sub>) generator, e.g. for adding ozone after generation of ozone from air</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N240/40" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2240/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>a hydrolysis catalyst</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N250/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2250/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations of different methods of purification</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N250/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2250/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>filtering and catalytic conversion</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N250/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2250/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>afterburning and catalytic conversion</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N250/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2250/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>afterburning and filtering</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N250/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2250/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>filtering and inertial particulate separation</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N250/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2250/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>cooling and filtering</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N250/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2250/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>absorption or adsorption, and catalytic conversion</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N250/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2250/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>absorption or adsorption, and filtering</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N260/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Exhaust treating devices having provisions not otherwise provided for</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for cooling the device</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N260/022" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using air</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N260/024" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a liquid</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for regeneration or reactivation, e.g. of catalyst</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for improving exhaust evacuation or circulation, or reducing back-pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for preventing heat loss or temperature drop, using other means than layers of heat-insulating material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for avoiding stress caused by expansions or contractions due to temperature variations</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for resisting high pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for modifying or adapting flow area or back-pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/16" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for reducing exhaust flow pulsations</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for improving rigidity, e.g. by wings, ribs</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/22" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for preventing theft of exhaust parts or devices, e.g. anti-theft arrangements</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/24" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for identifying exhaust parts or devices, e.g. by labels, stickers or directly printing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N260/26" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2260/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for preventing enter of dirt into the device</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N270/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2270/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mixing air with exhaust gases</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N270/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2270/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for cooling exhaust gases or the apparatus</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N270/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2270/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for afterburning</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N270/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2270/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for silencing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N270/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2270/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for evacuation of exhaust gases, e.g. in tail-pipes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N270/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2270/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for rendering exhaust innocuous, e.g. by dilution</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N290/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2290/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Movable parts or members in exhaust systems for other than for control purposes</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N290/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2290/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with continuous rotary movement</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N290/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2290/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>driven by exhaust gases</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N290/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2290/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>driven by auxiliary drive</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N290/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2290/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oscillating or vibrating movement</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N290/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2290/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>actuated by pressure of exhaust gases, e.g. exhaust pulses</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N310/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2310/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of sound absorbing or insulating material</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N310/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2310/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mineral wool, e.g. glass wool, rock wool, asbestos or the like</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N310/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2310/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metallic wool, e.g. steel wool, copper wool or the like</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N310/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2310/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Porous ceramics</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N310/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2310/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Exfoliated vermiculite, e.g. zonolite, coke, pumice</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N310/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2310/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plastic foam</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N310/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2310/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Granular material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N310/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2310/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Wire mesh fabric, woven glass cloth or the like</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N330/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Structure of catalyst support or particle filter</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N330/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methods of manufacturing</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ceramic, e.g. monoliths</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Granular material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fibrous material, e.g. mineral or metallic wool</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N330/101" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using binders, e.g. to form a permeable mat, paper or the like</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N330/102" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>fibrous material being fiber reinforced polymer made of plastic matrix reinforced by fine glass or in the form of a loose mass of filaments or fibers</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metallic wire mesh fabric or knitting</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sintered material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Composite material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plastics, e.g. polymers, polyester, polyurethane</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/22" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metal foam</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/30" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Honeycomb supports characterised by their structural details</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N330/32" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the shape, form or number of corrugations of plates, sheets or foils</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N330/321" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/321</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two or more different kinds of corrugations in the same substrate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N330/322" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/322</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Corrugations of trapezoidal form</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N330/323" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/323</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Corrugations of saw-tooth or triangular form</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N330/324" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/324</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Corrugations of rectangular form</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N330/325" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/325</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Corrugations of omega form</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N330/34" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with flow channels of polygonal cross section</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N330/36" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with flow channels formed by tubes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N330/38" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>flow channels with means to enhance flow mixing,(e.g. protrusions or projections)</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N330/40" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>made of a single sheet, foil or plate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N330/42" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>made of three or more different sheets, foils or plates stacked one on the other</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N330/44" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>made of stacks of sheets, plates or foils that are folded in S-form</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N330/48" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the number of flow passages, e.g. cell density</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N330/60" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2330/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction</text></title-part><title-part><text>Higher filter capacity upstream than downstream in same housing</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N340/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2340/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus</text></title-part><title-part><text>Spatial arrangements of exhaust apparatuses</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N340/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2340/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the distance of the apparatus to the engine, or the distance between two exhaust treating apparatuses</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N340/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2340/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the arrangement of an exhaust pipe, manifold or apparatus in relation to vehicle frame or particular vehicle parts</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N340/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2340/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the arrangement of the exhaust apparatus relative to the turbine of a turbocharger</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N350/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2350/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for fitting catalyst support or particle filter element in the housing</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N350/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2350/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fitting ceramic monoliths in a metallic housing</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N350/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2350/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with means compensating thermal expansion</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N350/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2350/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with means preventing gas flow by-pass or leakage</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N350/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2350/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with means for compressing granular material</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N370/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2370/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of materials for exhaust purification</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N370/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2370/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>used in catalytic reactors</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N370/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2370/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Zeolitic material</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N370/22" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2370/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>used in non-catalytic purification apparatus</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N370/24" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2370/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Zeolitic material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N370/30" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2370/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Materials having magnetic properties</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N370/40" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2370/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Activated carbon or charcoal</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N390/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2390/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for controlling or regulating exhaust apparatus</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N390/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2390/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using electric components only</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N390/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2390/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using electropneumatic components</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N390/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2390/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using pneumatic components only</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N390/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2390/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using mechanical components only, e.g. actuated manually</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N410/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2410/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N410/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2410/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in case of high temperature, e.g. overheating of catalytic reactor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N410/03" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2410/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in case of low temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N410/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2410/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>during regeneration period, e.g. of particle filter</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N410/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2410/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>at cold starting</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N410/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2410/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in case of clogging, e.g. of particle filter</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N410/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2410/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for reducing flow resistance, e.g. to obtain more engine power</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N410/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2410/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in case of absorption, adsorption or desorption of exhaust gas constituents</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N410/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2410/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in case of excessive pressure, e.g. using a safety valve</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N430/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2430/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N430/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2430/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by cutting out a part of engine cylinders</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N430/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2430/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by adding non-fuel substances to combustion air or fuel, e.g. additives</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N430/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2430/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by varying fuel-air ratio, e.g. by enriching fuel-air mixture</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N430/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2430/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by modifying ignition or injection timing</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N430/085" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2430/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>at least a part of the injection taking place during expansion or exhaust stroke</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N430/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2430/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by modifying inlet or exhaust valve timing</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N450/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methods or apparatus for fitting, inserting or repairing different elements</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fitting monolithic blocks into the housing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Filling or emptying a chamber with granular material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Inserting sound absorbing material into a chamber</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Repairing the housing or pipe-joints</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fitting temporarily exhaust apparatus on exhaust conduit, e.g. in confined environment, garage or the like</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/16" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using threaded joints</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using quick-active type locking mechanisms, e.g. clips</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/22" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by welding or brazing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/24" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by bolts, screws, rivets or the like</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/26" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by bayonet fittings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/28" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using adhesive material, e.g. cement</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/30" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Removable or rechangeable blocks or cartridges, e.g. for filters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N450/40" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2450/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Retrofitting exhaust apparatus</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N470/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Structure or shape of gas passages, pipes or tubes</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tubes being perforated</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N470/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by shape, disposition or dimensions of apertures</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tubes being formed by assembly of stamped or otherwise deformed sheet-metal</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gas passages being formed between the walls of an outer shell and an inner chamber</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tubes having non-circular cross section</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tubes being corrugated</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plurality of outlet tubes, e.g. in parallel or with different length</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/16" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plurality of inlet tubes, e.g. discharging into different chambers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dimensional characteristics of tubes, e.g. length, diameter</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/22" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Inlet and outlet tubes being positioned on the same side of the apparatus</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/24" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/26" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tubes being formed by extrusion, drawing or rolling</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/28" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tubes being formed by moulding or casting x</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N470/30" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2470/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N490/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Structure, disposition or shape of gas-chambers</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N490/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two or more expansion chambers in series connected by means of tubes</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N490/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the gases flowing longitudinally from inlet to outlet only in one direction</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N490/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the gases flowing longitudinally from inlet to outlet in opposite directions</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N490/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two or more expansion chambers in series separated by apertured walls only</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N490/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two or more expansion chambers in parallel</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N490/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Chambers having variable volumes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N490/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dead or resonance chambers connected to gas flow tube by relatively short side-tubes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N490/15" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/15</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plurality of resonance or dead chambers</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N490/155" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/155</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being disposed one after the other in flow direction</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N490/16" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Chambers with particular shapes, e.g. spherical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N490/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dimensional characteristics of gas chambers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N490/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2490/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Chambers being formed inside the exhaust pipe without enlargement of the cross section of the pipe, e.g. resonance chambers</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N510/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Surface coverings</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N510/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for thermal insulation</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N510/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for sound absorption</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N510/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for exhaust purification, e.g. catalytic reaction</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N510/061" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/061</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>usable with leaded fuels</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N510/063" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>zeolites</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N510/065" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for reducing soot ignition temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N510/067" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>usable with sulfurised fuels</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N510/068" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the distribution of the catalytic coatings</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N510/0682" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F01N2510/0682</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>having a discontinuous, uneven or partially overlapping coating of catalytic material, e.g. higher amount of material upstream than downstream or <u>vice versa</u></text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N510/0684" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/0684</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having more than one coating layer, e.g. multi-layered coatings</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N510/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for corrosion prevention</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N510/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for preventing carbon deposits, e.g. chromium</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N510/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for smell removal</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N510/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2510/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for dehydrating</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N530/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2530/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of materials for tubes, chambers or housings</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N530/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2530/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Corrosion resistive metals</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N530/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2530/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Steel alloys, e.g. stainless steel</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N530/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2530/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminium or alloys thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N530/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2530/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plastics material, e.g. polyester resin</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N530/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2530/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>reinforced with mineral or metallic fibres</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N530/22" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2530/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flexible elastomeric material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N530/24" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2530/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sintered porous material, e.g. bronze, aluminium or the like</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N530/26" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2530/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Multi-layered walls</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N550/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Monitoring or diagnosing the deterioration of exhaust systems</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N550/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Catalytic activity of catalytic converters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N550/03" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of sorbing activity of adsorbents or absorbents</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N550/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Filtering activity of particulate filters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N550/05" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Systems for adding substances into exhaust</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N550/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>By-pass systems</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N550/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of catalytic converters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N550/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of particulate filters</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N550/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Systems for adding secondary air into exhaust</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N550/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Monitoring artificially aged exhaust systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N550/22" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of electric heaters for exhaust systems or their power supply</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N550/24" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2550/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Determining the presence or absence of an exhaust treating device</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N560/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Exhaust systems with means for detecting or measuring exhaust gas components or characteristics</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N560/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being an exhaust gas sensor</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N560/021" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for measuring or detecting ammonia NH<sub>3</sub></text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N560/022" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for measuring or detecting CO or CO<sub>2</sub></text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N560/023" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for measuring or detecting HC</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N560/024" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for measuring or detecting hydrogen H<sub>2</sub></text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N560/025" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for measuring or detecting O<sub>2</sub>, e.g. lambda sensors</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N560/026" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for measuring or detecting NOx</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N560/027" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for measuring or detecting SOx</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N560/028" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for measuring or detecting humidity or water</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N560/05" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being a particulate sensor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N560/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being a temperature sensor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N560/07" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/07</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being an exhaust gas flow rate or velocity meter or sensor, intake flow meters only when exclusively used to determine exhaust gas parameters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N560/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being a pressure sensor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N560/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other sensor principles, e.g. using electro conductivity of substrate or radio frequency</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N560/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having more than one sensor of one kind</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N560/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2560/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sensor having heating means</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N570/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lead</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur or sulfur oxides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Zinc</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Phosphorus</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon or carbon oxides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydrocarbons</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen oxides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N570/145" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dinitrogen oxide</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/16" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ammonia</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Formaldehyde</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/22" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Water or humidity</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N570/24" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2570/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydrogen sulfide (H<sub>2</sub>S)</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N590/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2590/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N590/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2590/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for marine vessels or naval applications</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N590/021" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2590/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for outboard engines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N590/022" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2590/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for jetskis</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N590/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2590/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for motorcycles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N590/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2590/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for hand-held tools or portables devices</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N590/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2590/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for heavy duty applications, e.g. trucks, buses, tractors, locomotives</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N590/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2590/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for stationary applications</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N590/11" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2590/11</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for hybrid vehicles</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N610/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adding substances to exhaust gases</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/01" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the substance being catalytic material in liquid form</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the substance being ammonia or urea</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/03" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the substance being hydrocarbons, e.g. engine fuel</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the substance being hydrogen</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/05" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the substance being carbon monoxide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the substance being in the gaseous form</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with prior mixing of the substances with a gas, e.g. air</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/085" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Controlling the air supply</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the substance being heated, e.g. by heating tank or supply line of the added substance</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/102" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>after addition to exhaust gases, e.g. by a passively or actively heated surface in the exhaust conduit</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/105" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/107" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using glow plug heating elements</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/11" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/11</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the substance or part of the dosing system being cooled</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the substance being in solid form, e.g. pellets or powder</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N610/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for the supply of substances, e.g. conduits</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/1406" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/1406</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Storage means for substances, e.g. tanks or reservoirs</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N610/1413" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/1413</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Inlet and filling arrangements therefore</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N610/142" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Controlling the filling of the tank</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/1426" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/1426</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Filtration means</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/1433" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/1433</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N610/144" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/144</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/1446" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/1446</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means for damping of pressure fluctuations in the delivery system, e.g. by puffer volumes or throttling</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/1453" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/1453</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sprayers or atomisers</text></title-part><title-part><text>Arrangement thereof in the exhaust apparatus</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N610/146" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control thereof, e.g. control of injectors or injection valves</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/1466" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/1466</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means for venting air out of conduits or tanks</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/1473" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/1473</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Overflow or return means for the substances, e.g. conduits or valves for the return path</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/148" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/148</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of sensors</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/1486" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2610/1486</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means to prevent the substance from freezing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N610/1493" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>F01N2610/1493</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Purging the reducing agent out of the conduits or nozzle</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F01N900/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details of electrical control or of the monitoring of the exhaust gas treating apparatus</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N900/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methods of control or diagnosing</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0402" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0402</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using adaptive learning</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0404" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0404</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a data filter</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0406" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0406</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a model with a division of the catalyst or filter in several cells</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0408" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0408</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a feed-back loop</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0411" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0411</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a feed-forward control</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0412" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0412</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using pre-calibrated maps, tables or charts</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0414" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0414</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a state observer</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0416" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0416</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using the state of a sensor, e.g. of an exhaust gas sensor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0418" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0418</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using integration or an accumulated value within an elapsed period</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0421" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0421</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using an increment counter when a predetermined event occurs</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0422" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0422</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>measuring the elapsed time</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01N900/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Parameters used for exhaust control or diagnosing</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0601" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0601</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being estimated</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/0602" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/0602</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electrical exhaust heater signals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>said parameters being related to the engine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>said parameters being related to the vehicle or its components</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/102" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Travelling distance</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/104" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Battery status</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>said parameters being related to the vehicle exterior</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>said parameters being related to the exhaust gas</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1402" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1402</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Exhaust gas composition</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1404" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1404</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Exhaust gas temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1406" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1406</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Exhaust gas pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1411" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F01N2900/1411</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Exhaust gas flow rate, e.g. mass flow rate or volumetric flow rate</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/16" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1602" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1602</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Temperature of exhaust gas apparatus</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1606" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1606</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Particle filter loading or soot amount</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1611" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1611</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Particle filter ash amount</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1612" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1612</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>SOx amount trapped in catalyst</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1614" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1614</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>NOx amount trapped in catalyst</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1616" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1616</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>NH<sub>3</sub>-slip from catalyst</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1618" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1618</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>HC-slip from catalyst</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1621" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1621</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Catalyst conversion efficiency</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1622" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1622</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Catalyst reducing agent absorption capacity or consumption amount</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1624" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1624</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Catalyst oxygen storage capacity</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1626" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1626</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Catalyst activation temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1628" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1628</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Moisture amount in exhaust apparatus</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1631" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1631</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat amount provided to exhaust apparatus</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01N900/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>said parameters being related to the system for adding a substance into the exhaust</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1804" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1804</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Properties of secondary air added directly to the exhaust</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01N900/1806" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1806</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Properties of reducing agent or dosing system</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F01N900/1808" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1808</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F01N900/1811" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1811</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F01N900/1812" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1812</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flow rate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F01N900/1814" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1814</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tank level</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F01N900/1818" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1818</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Concentration of the reducing agent</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F01N900/1821" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1821</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Injector parameters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F01N900/1822" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1822</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pump parameters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F01N900/1824" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01N2900/1824</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Properties of the air to be mixed with added substances, e.g. air pressure or air temperature</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme>