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117 lines
276 KiB
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<?xml version="1.0" encoding="UTF-8"?>
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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
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<classification-item breakdown-code="false" not-allocatable="true" level="2" additional-only="false" sort-key="C" date-revised="2013-01-01" status="published"><classification-symbol>C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>CHEMISTRY</text></title-part><title-part><text>METALLURGY</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In section <class-ref scheme="cpc">C</class-ref>, the definitions of groups of chemical elements are as follows: <subnote type="bullet"><note-paragraph>ALKALI METALS: Li, Na, K, Rb, Cs, Fr </note-paragraph><note-paragraph>ALKALINE EARTH METALS: Ca, Sr, Ba, Ra </note-paragraph><note-paragraph>LANTHANIDES: elements with atomic numbers 57 to 71 inclusive </note-paragraph><note-paragraph>RARE EARTHS: Sc, Y, Lanthanides </note-paragraph><note-paragraph>ACTINIDES: elements with atomic numbers 89 to 103 inclusive </note-paragraph><note-paragraph>REFRACTORY METALS: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W </note-paragraph><note-paragraph>HALOGENS: F, Cl, Br, I, At </note-paragraph><note-paragraph>NOBLE GASES: He, Ne, Ar, Kr, Xe, Rn </note-paragraph><note-paragraph>PLATINUM GROUP: Os, Ir, Pt, Ru, Rh, Pd </note-paragraph><note-paragraph>NOBLE METALS: Ag, Au, Platinum group </note-paragraph><note-paragraph>LIGHT METALS: alkali metals, alkaline earth metals, Be, Al, Mg </note-paragraph><note-paragraph>HEAVY METALS: metals other than light metals </note-paragraph><note-paragraph>IRON GROUP: Fe, Co, Ni </note-paragraph><note-paragraph>NON-METALS: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens </note-paragraph><note-paragraph>METALS: elements other than non-metals </note-paragraph><note-paragraph>TRANSITION ELEMENTS: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards</note-paragraph></subnote></note-paragraph><note-paragraph>The following notes are meant to assist in the use of this part of the classification scheme; they must not be read as modifying in any way the elaborations. <subnote type="number"><note-paragraph>Section <class-ref scheme="cpc">C</class-ref> <u>covers:</u> <subnote type="alpha"><note-paragraph>pure chemistry, which covers inorganic compounds, organic compounds, macromolecular compounds, and their methods of preparation;</note-paragraph><note-paragraph>applied chemistry, which covers compositions containing the above compounds, such as: glass, ceramics, fertilisers, plastics compositions, paints, products of the petroleum industry. It also covers certain compositions on account of their having particular properties rendering them suitable for certain purposes, as in the case of explosives, dyestuffs, adhesives, lubricants, and detergents;</note-paragraph><note-paragraph>certain marginal industries, such as the manufacture of coke and of solid or gaseous fuels, the production and refining of oils, fats, and waxes, the fermentation industry, (e.g. brewing and wine-making) the sugar industry;</note-paragraph><note-paragraph>certain operations or treatments, which are either purely mechanical, e.g. the mechanical treatment of leather and skins, or partly mechanical, e.g. the treatment of water, or the prevention of corrosion in general;</note-paragraph><note-paragraph>metallurgy, ferrous or non-ferrous alloys.</note-paragraph></subnote></note-paragraph><note-paragraph><subnote type="alpha"><note-paragraph>In the case of operations, treatments, products, or articles which have both a chemical and non-chemical part or aspect, the general rule is that the chemical part or aspect is covered by section <class-ref scheme="cpc">C</class-ref>.</note-paragraph><note-paragraph>In some of these cases, the chemical part or aspect brings with it a non-chemical one, even though purely mechanical, because this latter aspect either is essential to the operation or treatment or constitutes an important element of it; it has seemed, in fact, more logical not to dissociate the different parts or aspects of a coherent whole. This is the case for applied chemistry and for the industries, operations, and treatments mentioned in Notes 1), c), d) and e). For example, furnaces peculiar to the manufacture of glass are covered by class <class-ref scheme="cpc">C03</class-ref> and not by class <class-ref scheme="cpc">F27</class-ref>.</note-paragraph><note-paragraph>There are, however, some exceptions in which the mechanical (or non-chemical) aspect carries with it the chemical aspect, for example: <subnote type="bullet"><note-paragraph>certain extractive processes in subclass <class-ref scheme="cpc">A61K</class-ref>; </note-paragraph><note-paragraph>the chemical purification of air in subclass <class-ref scheme="cpc">A61L</class-ref>; </note-paragraph><note-paragraph>chemical methods of fire-fighting in subclass <class-ref scheme="cpc">A62D</class-ref>; </note-paragraph><note-paragraph>chemical processes and apparatus in class <class-ref scheme="cpc">B01</class-ref>; </note-paragraph><note-paragraph>imnpregnation of wood in subclass <class-ref scheme="cpc">B27K</class-ref>; </note-paragraph><note-paragraph>chemical methods of analysis or testing in subclass <class-ref scheme="cpc">G01N</class-ref>; </note-paragraph><note-paragraph>photographic materials and processes in class <class-ref scheme="cpc">G03</class-ref>, and generally, the chemical treatment of textiles and the production of cellulose or paper in section <class-ref scheme="cpc">D</class-ref>.</note-paragraph></subnote></note-paragraph><note-paragraph>In still other cases, the pure chemical aspect is covered by section <class-ref scheme="cpc">C</class-ref> and the applied chemical aspect by another section such as <class-ref scheme="cpc">A</class-ref>, <class-ref scheme="cpc">B</class-ref>, <class-ref scheme="cpc">F</class-ref>, e.g. the use of a substance or composition for <subnote type="bullet"><note-paragraph>treatment of plants or animals covered by subclass <class-ref scheme="cpc">A01N</class-ref>; </note-paragraph><note-paragraph>foodstuffs covered by class <class-ref scheme="cpc">A23</class-ref>; </note-paragraph><note-paragraph>munitions or explosives covered by class <class-ref scheme="cpc">F42</class-ref>.</note-paragraph></subnote></note-paragraph><note-paragraph>When the chemical and mechanical aspects are so closely interlocked that a neat and simple division is not possible, or when certain mechanical processes follow as a natural or logical continuation of a chemical treatment, section <class-ref scheme="cpc">C</class-ref> may cover, in addition to the chemical aspect, a part only of the mechanical aspect, e.g. after-treatments of artificial stone covered by class <class-ref scheme="cpc">C04</class-ref>. In this latter case a note or a reference is usually given to make the position clear, even if sometimes the division is rather arbitrary.</note-paragraph></subnote></note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="3" additional-only="false" sort-key="C01" date-revised="2013-01-01" status="published"><classification-symbol>C01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>CHEMISTRY</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C01" date-revised="2019-05-01" status="published"><classification-symbol>C01</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>INORGANIC CHEMISTRY</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this class, in the absence of an indication to the contrary, a compound is classified in the last appropriate place; <CPC-specific-note> except compounds of group <class-ref scheme="cpc">C01B6/00</class-ref> which takes precedence over the other groups of class <class-ref scheme="cpc">C01</class-ref></CPC-specific-note>.</note-paragraph><note-paragraph>The name of compounds is to be taken in a strictly limitative sense. With the exception of hydrogen and oxygen, in order to include water of hydration and acid salts, compounds may not contain other parts than its name suggests. In some cases however subgroups are provided for compounds containing more parts than their name suggests, e.g. group <class-ref scheme="cpc">C01F7/76</class-ref>, providing for alum, is a subgroup of group <class-ref scheme="cpc">C01F7/74</class-ref> covering aluminium sulfates. In such a case, this note is applicable to the particular subgroup</note-paragraph><note-paragraph>In class <class-ref scheme="cpc">C01</class-ref> it is desirable to add the indexing codes relating to structural and physical aspects of solid inorganic compounds. The indexing codes are choosen from the groups of <class-ref scheme="cpc">C01P</class-ref></note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C01B.xml" sort-key="C01B" definition-exists="true" date-revised="2020-01-01" status="published"><classification-symbol>C01B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>NON-METALLIC ELEMENTS</text></title-part><title-part><text>COMPOUNDS THEREOF; </text><CPC-specific-text><text>METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS <class-ref scheme="cpc">C01C</class-ref></text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, tradenames that are often found in scientific and patent literature have been used in order to define precisely the scope of the groups.</note-paragraph><note-paragraph>Attention is drawn to the definitions of groups of chemical elements following the title of section <class-ref scheme="cpc">C</class-ref>.</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C01B35/16</class-ref>, <class-ref scheme="ipc">C01B35/18</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C01B35/00</class-ref> </entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C01C.xml" sort-key="C01C" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C01C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>AMMONIA</text></title-part><title-part><text>CYANOGEN</text></title-part><title-part><text>COMPOUNDS THEREOF </text><reference><CPC-specific-text><text>metal hydrides, monoborane, diborane or addition complexes thereof <class-ref scheme="cpc">C01B6/00</class-ref></text></CPC-specific-text><text>; salts of oxyacids of halogens <class-ref scheme="cpc">C01B11/00</class-ref>; peroxides, salts of peroxyacids <class-ref scheme="cpc">C01B15/00</class-ref>; thiosulfates, dithionites, polythionates <class-ref scheme="cpc">C01B17/64</class-ref>; compounds containing selenium or tellurium <class-ref scheme="cpc">C01B19/00</class-ref>; azides <class-ref scheme="cpc">C01B21/08</class-ref>; </text><CPC-specific-text><text>compounds other than ammonia or cyanogen, containing nitrogen, non-metals and optionally metals <class-ref scheme="cpc">C01B21/082</class-ref></text></CPC-specific-text><text>; metal imides or amides <class-ref scheme="cpc">C01B21/092</class-ref>; nitrites <class-ref scheme="cpc">C01B21/50</class-ref>; </text><CPC-specific-text><text>compounds of noble gases <class-ref scheme="cpc">C01B23/0005</class-ref></text></CPC-specific-text><text>; phosphides <class-ref scheme="cpc">C01B25/08</class-ref>; salts of oxyacids of phosphorus <class-ref scheme="cpc">C01B25/16</class-ref>; compounds containing silicon <class-ref scheme="cpc">C01B33/00</class-ref>; compounds containing boron <class-ref scheme="cpc">C01B35/00</class-ref></text></reference></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C01D.xml" sort-key="C01D" definition-exists="true" date-revised="2017-08-01" status="published"><classification-symbol>C01D</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM </text><reference><text>metal hydrides </text><CPC-specific-text><text>monoborane, diborane or addition complexes thereof</text></CPC-specific-text><text> <class-ref scheme="cpc">C01B6/00</class-ref>; salts of oxyacids of halogens <class-ref scheme="cpc">C01B11/00</class-ref>; peroxides, salts of peroxyacids <class-ref scheme="cpc">C01B15/00</class-ref>; sulfides <class-ref scheme="cpc">C01B17/22</class-ref>; thiosulfates, dithionites, polythionates <class-ref scheme="cpc">C01B17/64</class-ref>; compounds containing selenium or tellurium <class-ref scheme="cpc">C01B19/00</class-ref>; binary compounds of nitrogen with metals <class-ref scheme="cpc">C01B21/06</class-ref>; azides <class-ref scheme="cpc">C01B21/08</class-ref>; </text><CPC-specific-text><text>compounds other than ammonia and cyanogen, containing nitrogen and other non-metals <class-ref scheme="cpc">C01B21/082</class-ref></text></CPC-specific-text><text>; metal amides <class-ref scheme="cpc">C01B21/092</class-ref>; nitrites <class-ref scheme="cpc">C01B21/50</class-ref>; phosphides <class-ref scheme="cpc">C01B21/50</class-ref>; </text><CPC-specific-text><text>compounds of noble gases <class-ref scheme="cpc">C01B23/0005</class-ref></text></CPC-specific-text><text>; phosphides <class-ref scheme="cpc">C01B25/08</class-ref>; salts of oxyacids of phosphorus <class-ref scheme="cpc">C01B25/16</class-ref>; carbides <class-ref scheme="cpc">C01B32/90</class-ref>; compounds containing silicon <class-ref scheme="cpc">C01B33/00</class-ref>; compounds containing boron <class-ref scheme="cpc">C01B35/00</class-ref>; cyanides <class-ref scheme="cpc">C01C3/08</class-ref>; salts of cyanic acid <class-ref scheme="cpc">C01C3/14</class-ref>; salts of cyanamide <class-ref scheme="cpc">C01C3/16</class-ref>; thiocyanates <class-ref scheme="cpc">C01C3/20</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C01F.xml" sort-key="C01F" definition-exists="true" date-revised="2017-08-01" status="published"><classification-symbol>C01F</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS </text><reference><text>metal hydrides </text><CPC-specific-text><text>monoborane, diborane or addition complexes thereof</text></CPC-specific-text><text> <class-ref scheme="cpc">C01B6/00</class-ref>; salts of oxyacids of halogens <class-ref scheme="cpc">C01B11/00</class-ref>; peroxides, salts of peroxyacids <class-ref scheme="cpc">C01B15/00</class-ref>; sulfides or polysulfides of magnesium, calcium, strontium, or barium <class-ref scheme="cpc">C01B17/42</class-ref>; thiosulfates, dithionites, polythionates <class-ref scheme="cpc">C01B17/64</class-ref>; compounds containing selenium or tellurium <class-ref scheme="cpc">C01B19/00</class-ref>; binary compounds of nitrogen with metals <class-ref scheme="cpc">C01B21/06</class-ref>; azides <class-ref scheme="cpc">C01B21/08</class-ref>; </text><CPC-specific-text><text>compounds other than ammonia or cyanogen containing nitrogen and non-metals and optionally metals <class-ref scheme="cpc">C01B21/082</class-ref>; amides or imides of silicon <class-ref scheme="cpc">C01B21/087</class-ref></text></CPC-specific-text><text>; metal </text><CPC-specific-text><text>imides or</text></CPC-specific-text><text> amides <class-ref scheme="cpc">C01B21/092</class-ref>, </text><CPC-specific-text><text><class-ref scheme="cpc">C01B21/0923</class-ref></text></CPC-specific-text><text>; nitrites <class-ref scheme="cpc">C01B21/50</class-ref>; </text><CPC-specific-text><text>compounds of noble gases <class-ref scheme="cpc">C01B23/0005</class-ref></text></CPC-specific-text><text>; phosphides <class-ref scheme="cpc">C01B25/08</class-ref>; salts of oxyacids of phosphorus <class-ref scheme="cpc">C01B25/16</class-ref>; carbides <class-ref scheme="cpc">C01B32/90</class-ref>; compounds containing silicon <class-ref scheme="cpc">C01B33/00</class-ref>; compounds containing boron <class-ref scheme="cpc">C01B35/00</class-ref>; compounds having molecular sieve properties but not having base-exchange properties <class-ref scheme="cpc">C01B37/00</class-ref>; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, <class-ref scheme="cpc">C01B39/00</class-ref>; cyanides <class-ref scheme="cpc">C01C3/08</class-ref>; salts of cyanic acid <class-ref scheme="cpc">C01C3/14</class-ref>; salts of cyanamide <class-ref scheme="cpc">C01C3/16</class-ref>; thiocyanates <class-ref scheme="cpc">C01C3/20</class-ref>; </text><CPC-specific-text><text>double sulfates of magnesium with sodium or potassium <class-ref scheme="cpc">C01D5/12</class-ref>; with other alkali metals <class-ref scheme="cpc">C01D15/00</class-ref>, <class-ref scheme="cpc">C01D17/00</class-ref></text></CPC-specific-text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C01G.xml" sort-key="C01G" definition-exists="true" date-revised="2017-08-01" status="published"><classification-symbol>C01G</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES <class-ref scheme="cpc">C01D</class-ref> OR <class-ref scheme="cpc">C01F</class-ref> </text><reference><text>metal hydrides </text><CPC-specific-text><text>monoborane, diborane or addition complexes thereof</text></CPC-specific-text><text> <class-ref scheme="cpc">C01B6/00</class-ref>; salts of oxyacids of halogens <class-ref scheme="cpc">C01B11/00</class-ref>; peroxides, salts or peroxyacids <class-ref scheme="cpc">C01B15/00</class-ref>; thiosulfates, dithionites, polythionates <class-ref scheme="cpc">C01B17/64</class-ref>; compounds containing selenium, or tellurium <class-ref scheme="cpc">C01B19/00</class-ref>; binary compounds of nitrogen with metals <class-ref scheme="cpc">C01B21/06</class-ref>; azides <class-ref scheme="cpc">C01B21/08</class-ref>; </text><CPC-specific-text><text>compounds containing nitrogen, other non-metals and metal <class-ref scheme="cpc">C01B21/082</class-ref></text></CPC-specific-text><text>; metal amides <class-ref scheme="cpc">C01B21/092</class-ref>; nitrites <class-ref scheme="cpc">C01B21/50</class-ref>; </text><CPC-specific-text><text>compounds of noble gases <class-ref scheme="cpc">C01B23/0005</class-ref></text></CPC-specific-text><text>; phosphides <class-ref scheme="cpc">C01B25/08</class-ref>; salts of oxyacids of phosphorus <class-ref scheme="cpc">C01B25/16</class-ref>; carbides <class-ref scheme="cpc">C01B32/90</class-ref>; compounds containing silicon <class-ref scheme="cpc">C01B33/00</class-ref>; compounds containing boron <class-ref scheme="cpc">C01B35/00</class-ref>; compounds having molecular sieve properties but not having base-exchange properties <class-ref scheme="cpc">C01B37/00</class-ref>; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, <class-ref scheme="cpc">C01B39/00</class-ref>; cyanides <class-ref scheme="cpc">C01C3/08</class-ref>; salts of cyanamide <class-ref scheme="cpc">C01C3/16</class-ref>; thiocyanates <class-ref scheme="cpc">C01C3/20</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C01P.xml" sort-key="C01P" definition-exists="true" date-revised="2013-01-01" status="published"><classification-symbol>C01P</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass constitutes an internal scheme for indexing only.</note-paragraph><note-paragraph>The indexing scheme is used to identify structural and physical aspects of solid inorganic compounds, already classified in class <class-ref scheme="cpc">C01</class-ref> or subclass <class-ref scheme="cpc">C09C</class-ref>.</note-paragraph></note></notes-and-warnings></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C02" date-revised="2019-05-01" status="published"><classification-symbol>C02</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C02F.xml" sort-key="C02F" definition-exists="true" date-revised="2023-01-01" status="published"><classification-symbol>C02F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE </text><reference><text>separation in general <class-ref scheme="cpc">B01D</class-ref>; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, <class-ref scheme="cpc">B63J</class-ref>; adding materials to water to prevent corrosion <class-ref scheme="cpc">C23F</class-ref>; treating radioactively-contaminated liquids <class-ref scheme="cpc">G21F9/04</class-ref>; regeneration of reactants for recirculation into processes, see the relevant places for the processes</text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> When classifying in this subclass, classification is also made in group <class-ref scheme="cpc">B01D15/08</class-ref> insofar as subject matter of general interest relating to chromatography is concerned. </note-paragraph></note><note type="warning"><note-paragraph><CPC-specific-note>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.</CPC-specific-note></note-paragraph></note></notes-and-warnings></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C03" date-revised="2019-05-01" status="published"><classification-symbol>C03</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>GLASS</text></title-part><title-part><text>MINERAL OR SLAG WOOL</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C03B.xml" sort-key="C03B" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C03B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C03B8/00</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C03B19/00</class-ref>, <class-ref scheme="cpc">C03B37/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C03B8/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C03B19/1065</class-ref>, <class-ref scheme="cpc">C03B19/12</class-ref>, <class-ref scheme="cpc">C03B37/011</class-ref>, <class-ref scheme="cpc">C03B37/016</class-ref></entry></row><row><entry><class-ref scheme="ipc">C03B8/04</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C03B19/106</class-ref>, <class-ref scheme="cpc">C03B19/14</class-ref>, <class-ref scheme="cpc">C03B37/014</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C03C.xml" sort-key="C03C" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C03C</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS</text></title-part><title-part><text>SURFACE TREATMENT OF GLASS</text></title-part><title-part><text>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS</text></title-part><title-part><text>JOINING GLASS TO GLASS OR OTHER MATERIALS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers</u> compositions of polycristalline fibres</note-paragraph><note-paragraph>This subclass <u>does not cover</u> the preparation of single-cristal fibres, which is covered by subclass <class-ref scheme="cpc">C30B</class-ref></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C03C6/00</class-ref> - <class-ref scheme="ipc">C03C6/10</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C03C1/00</class-ref> - <class-ref scheme="cpc">C03C1/105</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C03C10/02</class-ref> - <class-ref scheme="ipc">C03C10/14</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C03C10/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C03C13/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C03C13/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C03C27/12</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">B32B17/00</class-ref></entry></row></table></note-paragraph><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></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C04" date-revised="2019-05-01" status="published"><classification-symbol>C04</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>CEMENTS</text></title-part><title-part><text>CONCRETE</text></title-part><title-part><text>ARTIFICIAL STONE</text></title-part><title-part><text>CERAMICS</text></title-part><title-part><text>REFRACTORIES</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This class <u>does not cover</u> mechanical features provided for elsewhere, e.g. mechanical working <class-ref scheme="cpc">B28</class-ref>, kilns <class-ref scheme="cpc">F27</class-ref>.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C04B.xml" sort-key="C04B" definition-exists="true" date-revised="2022-02-01" status="published"><classification-symbol>C04B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>LIME, MAGNESIA</text></title-part><title-part><text>SLAG</text></title-part><title-part><text>CEMENTS</text></title-part><title-part><text>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS</text></title-part><title-part><text>ARTIFICIAL STONE </text><CPC-specific-text><reference><text>roofing granules <class-ref scheme="cpc">E04D7/005</class-ref></text></reference></CPC-specific-text></title-part><title-part><text>CERAMICS </text><reference><text>devitrified glass-ceramics <class-ref scheme="cpc">C03C10/00</class-ref></text></reference></title-part><title-part><text>REFRACTORIES</text></title-part><title-part><text>TREATMENT OF NATURAL STONE</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this subclass, the following terms or expressions are used with the meanings indicated: <subnote type="bullet"><note-paragraph>"fillers" includes pigments, aggregates and fibrous reinforcing materials; </note-paragraph><note-paragraph>"active ingredients" includes processing aids or property improvers, e.g. grinding aids used after the burning process or used in the absence of a burning process; </note-paragraph><note-paragraph>"mortars", "concrete" and "artificial stone" are to be considered as a single group of materials, and therefore, in the absence of an indication to the contrary, they include mortar, concrete and other cementitious compositions. </note-paragraph></subnote></note-paragraph><note-paragraph> In groups <class-ref scheme="cpc">C04B7/00</class-ref> - <class-ref scheme="cpc">C04B32/00</class-ref>, in the absence of an indication to the contrary, classification is made in the last appropriate place. </note-paragraph><note-paragraph> A composition classified in groups <class-ref scheme="cpc">C04B26/00</class-ref> or <class-ref scheme="cpc">C04B28/00</class-ref> is also classified in groups <class-ref scheme="cpc">C04B14/00</class-ref> - <class-ref scheme="cpc">C04B24/00</class-ref> if a filler or active ingredient is of interest. </note-paragraph><note-paragraph> In groups <class-ref scheme="cpc">C04B2/00</class-ref> - <class-ref scheme="cpc">C04B32/00</class-ref> and <class-ref scheme="cpc">C04B38/00</class-ref> - <class-ref scheme="cpc">C04B41/00</class-ref> it is desirable to classify the individual constituents of the mixtures, or other aspects relating to the mixtures or constituents, using Combination Sets with symbols chosen from groups <class-ref scheme="cpc">C04B2/00</class-ref> - <class-ref scheme="cpc">C04B41/00</class-ref>. </note-paragraph><note-paragraph> In groups <class-ref scheme="cpc">C04B2/00</class-ref> - <class-ref scheme="cpc">C04B32/00</class-ref> and <class-ref scheme="cpc">C04B38/00</class-ref> - <class-ref scheme="cpc">C04B41/00</class-ref> it is desirable to classify the function of the individual constituents of the mixtures, or other aspects relating to the properties or uses of the mixtures or products obtained, using Combination Sets with symbols chosen from groups <class-ref scheme="cpc">C04B2103/00</class-ref> - <class-ref scheme="cpc">C04B2111/00</class-ref>. </note-paragraph><note-paragraph> Groups <class-ref scheme="cpc">C04B20/123</class-ref> and <class-ref scheme="cpc">C04B20/126</class-ref> are used for indexing purposes only of documents classified in <class-ref scheme="cpc">C04B20/12</class-ref></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C04B5/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">B01J2/00</class-ref>, <class-ref scheme="cpc">C21B3/06</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B28/20</class-ref>, <class-ref scheme="ipc">C04B28/22</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B28/18</class-ref>, <class-ref scheme="cpc">C04B28/182</class-ref>, <class-ref scheme="cpc">C04B28/184</class-ref>, <class-ref scheme="cpc">C04B28/186</class-ref>, <class-ref scheme="cpc">C04B28/188</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/035</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/26</class-ref>, <class-ref scheme="cpc">C04B35/2608</class-ref>, <class-ref scheme="cpc">C04B35/2616</class-ref>, <class-ref scheme="cpc">C04B35/2625</class-ref>, <class-ref scheme="cpc">C04B35/2633</class-ref>, <class-ref scheme="cpc">C04B35/2641</class-ref>, <class-ref scheme="cpc">C04B35/265</class-ref>, <class-ref scheme="cpc">C04B35/2658</class-ref>, <class-ref scheme="cpc">C04B35/2666</class-ref>, <class-ref scheme="cpc">C04B35/2675</class-ref>, <class-ref scheme="cpc">C04B35/2683</class-ref>, <class-ref scheme="cpc">C04B35/2691</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/28</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/26</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/30</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/26</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/32</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/26</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/34</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/26</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/36</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/26</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/38</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/26</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/40</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/2608</class-ref>, <class-ref scheme="cpc">C04B35/2641</class-ref>, <class-ref scheme="cpc">C04B35/2675</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/567</class-ref>, <class-ref scheme="ipc">C04B35/569</class-ref>, <class-ref scheme="ipc">C04B35/576</class-ref>, <class-ref scheme="ipc">C04B35/577</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/565</class-ref>, <class-ref scheme="cpc">C04B35/571</class-ref>, <class-ref scheme="cpc">C04B35/5755</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/582</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/581</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/5833</class-ref>, <class-ref scheme="ipc">C04B35/5835</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/583</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/586</class-ref>, <class-ref scheme="ipc">C04B35/594</class-ref>, <class-ref scheme="ipc">C04B35/596</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/584</class-ref>, <class-ref scheme="cpc">C04B35/589</class-ref>, <class-ref scheme="cpc">C04B35/591</class-ref>, <class-ref scheme="cpc">C04B35/593</class-ref>, <class-ref scheme="cpc">C04B35/5935</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/599</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/597</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/81</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/78</class-ref></entry></row><row><entry><class-ref scheme="ipc">C04B35/84</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/628</class-ref>, <class-ref scheme="cpc">C04B35/78</class-ref></entry></row></table></note-paragraph><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></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C05" date-revised="2019-05-01" status="published"><classification-symbol>C05</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>FERTILISERS</text></title-part><title-part><text>MANUFACTURE THEREOF</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>An ingredient in a mixture of fertilisers, or a single fertiliser which contains more than one of the chemical elements on which the subdivision into subclasses is based, is classified only in the first of the appropriate subclasses. Thus, a nitrophosphate or an ammoniated superphosphate is classified in <class-ref scheme="cpc">C05B</class-ref> but not in <class-ref scheme="cpc">C05C</class-ref>, magnesium phosphate is classified in <class-ref scheme="cpc">C05B</class-ref> but not in <class-ref scheme="cpc">C05D</class-ref>, and calcium cyanamide in <class-ref scheme="cpc">C05C</class-ref> but not in <class-ref scheme="cpc">C05D</class-ref>.</note-paragraph><note-paragraph><br/>In this class, mixtures of fertilizers are classified in the first appropriate place. After the notation of the appropriate classification symbol and separated therefrom by a + sign, notations concerning the ingredients of the mixture, not covered by the chosen classification symbol, may be added. These notations are selected from class <class-ref scheme="cpc">C05</class-ref> and are presented in the following way, e.g. <class-ref scheme="cpc">C05B1/02</class-ref> + <class-ref scheme="cpc">C05D1/02</class-ref> + <class-ref scheme="cpc">C05D9/02</class-ref></note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C05B.xml" sort-key="C05B" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C05B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PHOSPHATIC FERTILISERS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C05B21/00</class-ref></entry><entry>covered by </entry><entry><class-ref scheme="cpc">C05B1/00</class-ref> - <class-ref scheme="cpc">C05B19/00</class-ref> </entry></row></table>(see internal note after the title of class <class-ref scheme="cpc">C05</class-ref>)</note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C05C.xml" sort-key="C05C" definition-exists="true" date-revised="2018-01-01" status="published"><classification-symbol>C05C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>NITROGENOUS FERTILISERS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C05C13/00</class-ref></entry><entry>covered by</entry><entry><class-ref scheme="cpc">C05C1/00</class-ref> - <class-ref scheme="cpc">C05C11/00</class-ref></entry></row></table> (see internal note after the title of class <class-ref scheme="cpc">C05</class-ref>)</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C05D.xml" sort-key="C05D" definition-exists="true" date-revised="2018-01-01" status="published"><classification-symbol>C05D</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES <class-ref scheme="cpc">C05B</class-ref>, <class-ref scheme="cpc">C05C</class-ref></text></title-part><title-part><text>FERTILISERS PRODUCING CARBON DIOXIDE</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C05D11/00</class-ref></entry><entry>covered by</entry><entry><class-ref scheme="cpc">C05D1/00</class-ref> - <class-ref scheme="cpc">C05D9/00</class-ref></entry></row></table> (see internal note after the title of class <class-ref scheme="cpc">C05</class-ref>)</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C05F.xml" sort-key="C05F" definition-exists="true" date-revised="2018-01-01" status="published"><classification-symbol>C05F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES <class-ref scheme="cpc">C05B</class-ref>, <class-ref scheme="cpc">C05C</class-ref>, e.g. FERTILISERS FROM WASTE OR REFUSE </text><CPC-specific-text><reference><text>breeding of earthworms <class-ref scheme="cpc">A01K67/0332</class-ref></text></reference></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>Processes where the composting step is the characterising feature, or apparatus therefor, are classified in group <class-ref scheme="cpc">C05F17/00</class-ref>.</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C05F15/00</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C05F1/00</class-ref>-<class-ref scheme="cpc">C05F11/00</class-ref></entry></row></table>(see also internal note after the title of class <class-ref scheme="cpc">C05</class-ref>)</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C05G.xml" sort-key="C05G" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C05G</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS <class-ref scheme="cpc">C05</class-ref></text></title-part><title-part><text>MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS </text><reference><text>organic fertilisers containing added bacterial cultures, mycelia, or the like <class-ref scheme="cpc">C05F11/08</class-ref>; organic fertilisers containing plant vitamins or hormones <class-ref scheme="cpc">C05F11/10</class-ref></text></reference></title-part><title-part><text>FERTILISERS CHARACTERISED BY THEIR FORM</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers</u> mixtures of fertilisers with soil-conditioning or soil-stabilising materials characterised by their fertilizing activity.</note-paragraph><note-paragraph>This subclass <u>does not cover</u> mixtures of fertilisers with soil-conditioning or soil-stabilising materials characterised by their soil-conditioning or soil-stabilising activity, which are covered by group <class-ref scheme="cpc">C09K17/00</class-ref>.</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C05G1/02</class-ref> - <class-ref scheme="ipc">C05G1/10</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C05</class-ref> (see internal note after the title of class <class-ref scheme="cpc">C05</class-ref>)</entry></row></table></note-paragraph></note></notes-and-warnings></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C06" date-revised="2013-01-01" status="published"><classification-symbol>C06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>EXPLOSIVES</text></title-part><title-part><text>MATCHES</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C06B.xml" sort-key="C06B" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C06B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>EXPLOSIVES OR THERMIC COMPOSITIONS </text><reference><text>blasting <class-ref scheme="cpc">F42D</class-ref></text></reference></title-part><title-part><text>MANUFACTURE THEREOF</text></title-part><title-part><text>USE OF SINGLE SUBSTANCES AS EXPLOSIVES </text><reference><text>compounds in general <class-ref scheme="cpc">C01</class-ref>, <class-ref scheme="cpc">C07</class-ref> or <class-ref scheme="cpc">C08</class-ref>; </text><CPC-specific-text><text>demolition agents based on cementitious or like materials <class-ref scheme="cpc">C04B41/0009</class-ref></text></CPC-specific-text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers</u>:<subnote type="bullet"><note-paragraph>compositions which are:<subnote type="alpha"><note-paragraph>explosive: compositions included are those containing both a fuel and sufficient oxidiser so that, upon initiation, they are capable of undergoing a chemical change of a relatively high rate of speed, resulting in the production of usable force for blasting, firearms, propelling missiles, or the like;</note-paragraph><note-paragraph>thermic: compositions included have <subnote type="roman"><note-paragraph>a consumable fuel component which consists of any element which is a metal, B, Si, Se or Te, or mixtures, intercompounds, or hydrides thereof; and </note-paragraph><note-paragraph>in combination an oxidant component which is either a metal oxide or a salt (organic or inorganic) capable of yielding a metal oxide on decomposition;</note-paragraph></subnote></note-paragraph><note-paragraph>fuels for rocket engines and intended for reaction with an oxidant, excluding air, in order to provide thrust for motive power purposes;</note-paragraph><note-paragraph>for use in affecting the explosion environment, e.g. for neutralising the poisonous gases of explosives, for cooling the explosion gases, or the like;</note-paragraph></subnote></note-paragraph><note-paragraph>methods or apparatus for preparing or treating such compositions not otherwise provided for;</note-paragraph><note-paragraph>methods of using single substances as explosives.</note-paragraph></subnote></note-paragraph><note-paragraph>In this subclass, the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph>"nitrated" covers compounds having a nitro group or a nitrate ester group.</note-paragraph></subnote></note-paragraph><note-paragraph>Methods or apparatus for preparing or treating such compositions are classified according to the particular components of the compositions.</note-paragraph><note-paragraph>In this subclass, the words "based on", with reference to explosive compositions, refer to the explosive ingredient present in the largest proportion by weight</note-paragraph><note-paragraph>In the absence of an indication to the contrary a composition is classified in the last place that provides for an ingredient</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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C06C.xml" sort-key="C06C" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C06C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>DETONATING OR PRIMING DEVICES</text></title-part><title-part><text>FUSES </text><reference><text>ammunition fuzes <class-ref scheme="cpc">F42C</class-ref></text></reference></title-part><title-part><text>CHEMICAL LIGHTERS</text></title-part><title-part><text>PYROPHORIC COMPOSITIONS</text></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C06D.xml" sort-key="C06D" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C06D</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MEANS FOR GENERATING SMOKE OR MIST</text></title-part><title-part><text>GAS-ATTACK COMPOSITIONS</text></title-part><title-part><text>GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART) </text><reference><text>fuels <class-ref scheme="cpc">C10</class-ref></text></reference></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C06F.xml" sort-key="C06F" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C06F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MATCHES</text></title-part><title-part><text>MANUFACTURE OF MATCHES</text></title-part></class-title><notes-and-warnings><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></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C07" date-revised="2021-08-01" status="published"><classification-symbol>C07</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>ORGANIC CHEMISTRY</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this class, the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph> "preparation" covers purification, separation, stabilisation or use of additives, unless a separate place is provided therefor. </note-paragraph></subnote></note-paragraph><note-paragraph> Biocidal, pest repellant, pest attractant or plant growth regulatory activity of compounds or preparations is further classified in subclass <class-ref scheme="cpc">A01P</class-ref>. </note-paragraph><note-paragraph> In subclasses <class-ref scheme="cpc">C07C</class-ref>-<class-ref scheme="cpc">C07K</class-ref>, the last place priority rule is applied, i.e. at each hierarchical level, in the absence of an indication to the contrary, and with the exception referred to below, a compound is classified in the last appropriate place. For example, 2-butyl- pyridine, which contains an acyclic chain and a heterocyclic ring, is classified only as a heterocyclic compound, in subclass <class-ref scheme="cpc">C07D</class-ref>. In general, and in the absence of an indication to the contrary, such as mentioned in groups <class-ref scheme="cpc">C07C59/58</class-ref>, <class-ref scheme="cpc">C07C59/70</class-ref>, the terms "acyclic" and "aliphatic" are used to describe compounds in which there is no ring; and, if a ring were present, the compound would be taken by the "last place" rule to a later group for cycloaliphatic or aromatic compounds, if such a group exists. Where a compound or an entire group of compounds exists in tautomeric forms, it is classified as though existing in the form which is classified last in the system, unless the other form is specifically mentioned earlier in the system. </note-paragraph><note-paragraph> Chemical compounds and their preparation are classified in the groups for the type of compound prepared. The processes of preparation are also classified in places for the types of reaction employed, if of interest. Examples of such places outside this class are: <table><row><entry><class-ref scheme="cpc">C12P</class-ref></entry><entry> Fermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture </entry></row><row><entry><class-ref scheme="cpc">C25B3/00</class-ref></entry><entry> Electrolytic production of organic compounds </entry></row><row><entry><class-ref scheme="cpc">C25B7/00</class-ref></entry><entry> Electrophoretic production of compounds </entry></row></table></note-paragraph><note-paragraph> General processes for the preparation of a class of compounds falling into more than one main group are classified in the groups for the processes employed, when such groups exist. The compounds prepared are also classified in the groups for the types of compound prepared, if of interest. </note-paragraph><note-paragraph> In this class, in the absence of an indication to the contrary, the compounds containing carboxyl or thiocarboxyl groups are classified as the relevant carboxylic or thiocarboxylic acids, unless the "last place rule" (see Note (3), above) dictates otherwise; a carboxyl group being a carbon atom having three bonds, and no more than three, to hetero atoms, other than nitrogen atoms of nitro or nitroso groups, with at least one multiple bond to the same hetero atom and a thiocarboxyl group being a carboxyl group having at least one bond to a sulfur atom, e.g. amides or nitriles of carboxylic acids, are classified with the corresponding acids.</note-paragraph><note-paragraph> Salts of a compound, unless specifically provided for, are classified as that compound, e.g. aniline hydrochloride is classified as containing carbon, hydrogen and nitrogen only in group <class-ref scheme="cpc">C07C211/46</class-ref>, sodium malonate is classified as malonic acid in <class-ref scheme="cpc">C07C55/08</class-ref>, and a mercaptide is classified as the mercaptan. Metal chelates are dealt with in the same way. Similarly, metal alcoholates and metal phenates are classified in subclass <class-ref scheme="cpc">C07C</class-ref> and not in subclass <class-ref scheme="cpc">C07F</class-ref>, the alcoholates for instance in groups <class-ref scheme="cpc">C07C31/28</class-ref>-<class-ref scheme="cpc">C07C31/32</class-ref> and the phenates in group <class-ref scheme="cpc">C07C39/235</class-ref> or <class-ref scheme="cpc">C07C39/44</class-ref>. Salts, adducts or complexes formed between two or more organic compounds are classified according to all compounds forming the salts, adducts or complexes. </note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C07B.xml" sort-key="C07B" definition-exists="true" date-revised="2019-08-01" status="published"><classification-symbol>C07B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>GENERAL METHODS OF ORGANIC CHEMISTRY</text></title-part><title-part><text>APPARATUS THEREFOR </text><reference><text>preparation of carboxylic acid esters by telomerisation <class-ref scheme="cpc">C07C67/47</class-ref>; telomerisation <class-ref scheme="cpc">C08F</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, the functional group which is present already in some residue being introduced and is not substantially involved in a chemical reaction, is not considered as the functional group which is formed or introduced as a result of the chemical reaction.</note-paragraph><note-paragraph>In this subclass, the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph>"separation" means separation only for the purposes of recovering organic compounds.</note-paragraph></subnote></note-paragraph><note-paragraph>When classifying in this subclass, classification is also made in group <class-ref scheme="cpc">B01D15/08</class-ref> insofar as subject matter of general interest relating to chromatography is concerned</note-paragraph><note-paragraph>In this subclass, the last place priority rule is applied, i.e. at each hierarchical level, in the absence of an indication to the contrary, classification is made in the last appropriate place according to the type of reaction employed, noting the bond or the functional group which is formed or introduced as a result of the chemical reaction.</note-paragraph><note-paragraph><CPC-specific-note><class-ref scheme="cpc">C07B59/00</class-ref> and subgroups thereof are used for the classification of individual labelled compounds as well as for general methods.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note><class-ref scheme="cpc">C07B61/02</class-ref> is used for the classification of individual free radicals as well as for general methods.</CPC-specific-note></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used"> The following IPC group is not in the CPC scheme. The subject matter for this IPC group is classified in the following CPC group: <table><row><entry><class-ref scheme="ipc">C07B60/00</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07B61/02</class-ref></entry></row></table></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C07C.xml" sort-key="C07C" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C07C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>ACYCLIC OR CARBOCYCLIC COMPOUNDS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, the following terms or expressions are used with meanings indicated: <subnote type="bullet"><note-paragraph>"bridged" means the presence of at least one fusion other than ortho, peri or spiro; </note-paragraph><note-paragraph>two rings are "condensed" if they share at least one ring member, i.e. "spiro" and "bridged" are considered as condensed; </note-paragraph><note-paragraph>"condensed ring system" is a ring system in which all rings are condensed among themselves; </note-paragraph><note-paragraph>"number of rings" in a condensed ring system equals the number of scissions necessary to convert the ring system into one acyclic chain; </note-paragraph><note-paragraph>"quinones" are compounds derived from compounds containing a six-membered aromatic ring or a system comprising six-membered aromatic rings (which system may be condensed or not condensed) by replacing two or four CH groups of the six-membered aromatic rings by C=O groups, and by removing one or two carbon-to-carbon double bonds, respectively, and rearranging the remaining carbon-to-carbon double bonds to give a ring or ring system with alternating double bonds, including the carbon-to-oxygen bonds; this means that acenaphthenequinone or camphorquinone are not considered as quinones.</note-paragraph></subnote></note-paragraph><note-paragraph>In this subclass, in the absence of an indication to the contrary, a process is classified in the last appropriate place.</note-paragraph><note-paragraph>In this subclass, in the absence of an indication to the contrary, "quaternary ammonium compounds" are classified with the corresponding "non-quaternised nitrogen compounds".</note-paragraph><note-paragraph>For the classification of compounds in groups <class-ref scheme="cpc">C07C1/00</class-ref> - <class-ref scheme="cpc">C07C71/00</class-ref> and <class-ref scheme="cpc">C07C401/00</class-ref> - <class-ref scheme="cpc">C07C409/00</class-ref> : <subnote type="bullet"><note-paragraph>a compound is classified considering the molecule as a whole (rule of the "whole molecule approach"); </note-paragraph><note-paragraph>a compound is considered to be saturated if it does not contain carbon atoms bound to each other by multiple bonds; </note-paragraph><note-paragraph>a compound is considered to be unsaturated if it contains carbon atoms bound to each other by multiple bonds, which includes six-membered aromatic ring, unless otherwise specified or implicitely derivable from the subdivision.</note-paragraph></subnote></note-paragraph><note-paragraph>For the classification of compounds in groups <class-ref scheme="cpc">C07C201/00</class-ref> - <class-ref scheme="cpc">C07C395/00</class-ref>, i.e. after the functional group has been determined according to the"last place rule", a compound is classified according to the following principles: <subnote type="bullet"><note-paragraph>compounds are classified in accordance with the nature of the carbon atom to which the functional group is attached; </note-paragraph><note-paragraph>a carbon skeleton is a carbon atom, other than a carbon atom of a carboxyl group, or a chain of carbon atoms bound to each other, a carbon skeleton is considered to be terminated by every bond to an element other than carbon or to a carbon atom of a carboxyl group; </note-paragraph><note-paragraph>when the molecule contains several functional groups, only functional groups linked to the same carbon skeleton as the one first determined are considered; </note-paragraph><note-paragraph>a carbon sekeleton is considered to be saturated if it does not contain carbon atoms bound to each other by multiple bonds; </note-paragraph><note-paragraph>a carbon skeleton is considered to be unsaturated if it contains carbon atoms bound to each other by multiple bonds, which includes a six-membered aromatic ring.</note-paragraph></subnote></note-paragraph><note-paragraph>When classifying in this subclass, classification is also made in group <class-ref scheme="cpc">B01D15/08</class-ref> insofar as subject matter of general interest relating to chromatography is concerned.</note-paragraph><note-paragraph> When a process is classified in a process group, combination sets are used to indicate the product of the process. A combination set consists of a process group, followed by and linked to the group of the product. The products are selected from the corresponding product groups. </note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C07C27/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07C29/00</class-ref>, <class-ref scheme="cpc">C07C51/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07C47/042</class-ref>, <class-ref scheme="ipc">C07C47/045</class-ref>, <class-ref scheme="ipc">C07C47/048</class-ref>, <class-ref scheme="ipc">C07C47/052</class-ref>, <class-ref scheme="ipc">C07C47/055</class-ref>, <class-ref scheme="ipc">C07C47/058</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07C47/04</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07C47/07</class-ref>, <class-ref scheme="ipc">C07C47/09</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07C47/06</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07C53/04</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07C53/02</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07C57/045</class-ref>, <class-ref scheme="ipc">C07C57/05</class-ref>, <class-ref scheme="ipc">C07C57/055</class-ref>, <class-ref scheme="ipc">C07C57/065</class-ref>, <class-ref scheme="ipc">C07C57/07</class-ref>, <class-ref scheme="ipc">C07C57/075</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07C57/04</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07C69/025</class-ref>, <class-ref scheme="ipc">C07C69/03</class-ref>, <class-ref scheme="ipc">C07C69/035</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07C69/003</class-ref> - <class-ref scheme="cpc">C07C69/017</class-ref> and <class-ref scheme="cpc">C07C69/02</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07C69/347</class-ref>, <class-ref scheme="ipc">C07C69/353</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07C69/003</class-ref> - <class-ref scheme="cpc">C07C69/017</class-ref> and <class-ref scheme="cpc">C07C69/34</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07C69/527</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07C69/003</class-ref> - <class-ref scheme="cpc">C07C69/017</class-ref> and <class-ref scheme="cpc">C07C69/52</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07C69/767</class-ref>, <class-ref scheme="ipc">C07C69/773</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07C69/003</class-ref> - <class-ref scheme="cpc">C07C69/017</class-ref> and <class-ref scheme="cpc">C07C69/76</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07C69/83</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07C69/003</class-ref> - <class-ref scheme="cpc">C07C69/017</class-ref> and <class-ref scheme="cpc">C07C69/82</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C07D.xml" sort-key="C07D" definition-exists="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>HETEROCYCLIC COMPOUNDS </text><reference><text>macromolecular compounds <class-ref scheme="cpc">C08</class-ref></text></reference></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph>This subclass <u>does not cover</u> compounds containing saccharide radicals as defined in Note (3) following the title of subclass <class-ref scheme="cpc">C07H</class-ref>, which are covered by subclass <class-ref scheme="cpc">C07H</class-ref>. </note-paragraph><note-paragraph> In this subclass, in compounds containing a hetero ring covered by group <class-ref scheme="cpc">C07D295/00</class-ref> and at least one other hetero ring, the hetero ring covered by group <class-ref scheme="cpc">C07D295/00</class-ref> is considered as an acyclic chain containing nitrogen atoms.</note-paragraph><note-paragraph>In this subclass, the following terms or expressions are used with the meaning indicated:<subnote type="bullet"> <note-paragraph>"hetero ring" is a ring having at least one halogen, nitrogen, oxygen, sulfur, selenium or tellurium atom as a ring member;</note-paragraph><note-paragraph>"bridged" means the presence of at least one fusion other than ortho, peri or spiro;</note-paragraph><note-paragraph>two rings are "condensed" if they share at least one ring member, i.e. "spiro" and "bridged" are considered as condensed;</note-paragraph><note-paragraph>"condensed ring system" is a ring system in which all rings are condensed among themselves;</note-paragraph><note-paragraph>"number of relevant rings" in a condensed ring system equals the number of scissions necessary to convert the ring system into one acyclic chain;</note-paragraph><note-paragraph>"relevant rings" in a condensed ring system, i.e. the rings which taken together describe all the links between every atom of the ring system, are chosen according to the following criteria consecutively:<subnote type="alpha"><note-paragraph>lowest number of ring members;</note-paragraph><note-paragraph>highest number of hetero atoms as ring members;</note-paragraph><note-paragraph>lowest number of members shared with other rings;</note-paragraph><note-paragraph> last place in the classification scheme.</note-paragraph></subnote></note-paragraph> </subnote></note-paragraph><note-paragraph>Attention is drawn to Note (3) after class <class-ref scheme="cpc">C07</class-ref>, which defines the last place priority rule applied in the range of subclasses <class-ref scheme="cpc">C07C</class-ref> - <class-ref scheme="cpc">C07K</class-ref> and within these subclasses.</note-paragraph><note-paragraph>Therapeutic activity of compounds is further classified in subclass <class-ref scheme="cpc">A61P</class-ref>.</note-paragraph><note-paragraph> In this subclass, the last place priority rule is applied, i.e. at each hierarchical level, in the absence of an indication to the contrary:<subnote type="alpha"><note-paragraph>compounds having only one hetero ring are classified in the last appropriate place in one of the groups <class-ref scheme="cpc">C07D203/00</class-ref> - <class-ref scheme="cpc">C07D347/00</class-ref>. The same applies for compounds having more hetero rings covered by the same main group, neither condensed among themselves nor condensed with a common carbocyclic ring system;</note-paragraph><note-paragraph>compounds having two or more hetero rings covered by different main groups neither condensed among themselves nor condensed with a common carbocyclic ring system are classified in the last appropriate place in one of the groups <class-ref scheme="cpc">C07D401/00</class-ref> - <class-ref scheme="cpc">C07D421/00</class-ref>;</note-paragraph><note-paragraph>compounds having two or more relevant hetero rings, covered by the same or by different main groups, which are condensed among themselves or condensed with a common carbocyclic ring system, are classified in the last appropriate place in one of the groups <class-ref scheme="cpc">C07D451/00</class-ref> - <class-ref scheme="cpc">C07D519/00</class-ref>.</note-paragraph></subnote></note-paragraph><note-paragraph>In this subclass:<subnote type="bullet"><note-paragraph> where a compound may exist in tautomeric forms, it is classified as though existing in the form which is classified last in the system. Therefore, double bonds between ring members and non-ring members and double bonds between ring members themselves are considered equivalent in determining the degree of hydrogenation of the ring. Formulae are considered to be written in Kekule form;</note-paragraph><note-paragraph> hydrocarbon radicals containing a carbocyclic ring and an acyclic chain by which it is linked to the hetero ring and being substituted on both the carbocyclic ring and the acyclic chain by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, are classified according to the substituents on the acyclic chain. For example, the compound<br/><media id="1031" file-name="cpc-sch-C07D-1031.gif" type="gif"/><br/> is classified in group <class-ref scheme="cpc">C07D233/22</class-ref>, <br/> and the compound <br/><media id="1032" file-name="cpc-sch-C07D-1032.gif" type="gif"/><br/> is classified in groups <class-ref scheme="cpc">C07D233/24</class-ref> and <class-ref scheme="cpc">C07D233/26</class-ref>, where X —NH<sub>2</sub>, —NHCOCH<sub>3</sub>, or —COOCH<sub>3</sub>. </note-paragraph></subnote></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C07F.xml" sort-key="C07F" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C07F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM </text><reference><text>metal-containing porphyrins <class-ref scheme="cpc">C07D487/22</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 Note (3) <class-ref scheme="cpc">C07</class-ref>, which defines the last place priority rule applied in the range of subclasses <class-ref scheme="cpc">C07C</class-ref>-<class-ref scheme="cpc">C07K</class-ref> and within these subclasses.</note-paragraph><note-paragraph>Attention is drawn to Note (6) following the title of class <class-ref scheme="cpc">C07</class-ref>.</note-paragraph><note-paragraph>Attention is drawn to Note (3) after the title of section <class-ref scheme="cpc">C</class-ref>, which Note indicates to which version of the periodic table of chemical elements the IPC refers.</note-paragraph><note-paragraph>In this subclass , organic acid salts, alcoholates, phenates, chelates or mercaptides are classified as the parent compounds.</note-paragraph><note-paragraph>Compounds containing Se or Te are classified with their sulfur homologues</note-paragraph><note-paragraph>A hydrocarbon chain is considered to be terminated by a heteroatom or by a carbon atom having three bonds to heteroatoms with at the most one to halogen</note-paragraph><note-paragraph>When groups, e.g. aromatic or aliphatic groups, are mentioned without further indications, it means that the group concerned can be further substituted. Otherwise it will be indicated, e.g. <class-ref scheme="cpc">C07F9/11</class-ref> with hydroxyalkyl compounds without further substituents on alkyl.</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C07F9/6593</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07F9/65815</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C07G.xml" sort-key="C07G" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C07G</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>COMPOUNDS OF UNKNOWN CONSTITUTION</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> This subclass <u>does not cover</u> peptides or proteins of unknown constitution, which are covered by subclass <class-ref scheme="cpc">C07K</class-ref></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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C07H.xml" sort-key="C07H" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C07H</classification-symbol><class-title><title-part><text>SUGARS</text></title-part><title-part><text>DERIVATIVES THEREOF</text></title-part><title-part><text>NUCLEOSIDES</text></title-part><title-part><text>NUCLEOTIDES</text></title-part><title-part><text>NUCLEIC ACIDS </text><reference><text>derivatives of aldonic or saccharic acids <class-ref scheme="cpc">C07C</class-ref>, <class-ref scheme="cpc">C07D</class-ref>; aldonic acids, saccharic acids <class-ref scheme="cpc">C07C59/105</class-ref>, <class-ref scheme="cpc">C07C59/285</class-ref>; cyanohydrins <class-ref scheme="cpc">C07C255/16</class-ref>; glycals <class-ref scheme="cpc">C07D</class-ref>; compounds of unknown constitution <class-ref scheme="cpc">C07G</class-ref>; polysaccharides, derivatives thereof <class-ref scheme="cpc">C08B</class-ref>; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification <class-ref scheme="cpc">C12N15/00</class-ref>; sugar industry <class-ref scheme="cpc">C13</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers</u> compounds containing saccharide radicals (see the definitions in Note (3) below).</note-paragraph><note-paragraph>This subclass <u>does not cover</u> polysaccharides which for the purpose of this subclass are defined as having more than five saccharide radicals attached to each other by glycosidic linkages.</note-paragraph><note-paragraph> In this subclass, the following expressions are used with the meanings indicated:<subnote type="bullet"><note-paragraph>"saccharide radical" which is derived from acyclic polyhydroxy-aldehydes or acyclic polyhydroxy-ketones, or from their cyclic tautomers, by removing hydrogen atoms or by replacing hetero bonds to oxygen by the same number of hetero bonds to halogen, nitrogen, sulfur, selenium, or tellurium, in accordance with either of the following definitions:<subnote type="alpha"><note-paragraph>It <subnote type="roman"><note-paragraph>consists of an uninterrupted carbon skeleton and oxygen atoms directly attached thereto, and</note-paragraph><note-paragraph>is considered to be terminated by every bond to a carbon atom of a cyclic structure and by every bond to a carbon atom having three bonds to hetero atoms, e.g. ester or nitrile radicals, and</note-paragraph><note-paragraph> contains within the carbon skeleton an unbranched sequence of at the most six carbon atoms in which at least three carbon atoms — at least two in the case of a skeleton having only four carbon atoms — have one single bond to an oxygen atom as the only hetero bond, and <subnote type="Alpha"><note-paragraph> in a cyclic or acyclic sequence, at least one other carbon atom has two single bonds to oxygen atoms as the only hetero bonds, or</note-paragraph><note-paragraph>in an acyclic sequence, at least one other carbon atom has one double bond to an oxygen atom as the only hetero bond, the said sequence containing at the most one double bond, i.e. C=C or possibly ketalised C=O), in addition to the hetero bonds mentioned above under (A) or (B), e.g. the compounds <media id="1031" file-name="cpc-sch-C07H-1031.gif" type="gif"/> an unbranched sequence of at the most six carbon atoms, having bonds to oxygen as defined in this Note <media id="1032" file-name="cpc-sch-C07H-1032.gif" type="gif"/><br/>n being an integer, are classified in group <class-ref scheme="cpc">C07H3/02</class-ref>; </note-paragraph></subnote></note-paragraph></subnote></note-paragraph><note-paragraph>It is also a radical derived from a radical as defined in (a) above by replacing at the most four of the specified hetero bonds to oxygen by the same number of hetero bonds to halogen, nitrogen, sulfur, selenium, or tellurium; </note-paragraph></subnote></note-paragraph><note-paragraph>"heterocyclic radical" or "hetero ring" is considered to exclude saccharide radicals as defined above</note-paragraph></subnote></note-paragraph><note-paragraph>Attention is drawn to Note (3) after class <class-ref scheme="cpc">C07</class-ref>, which defines the last place priority rule applied in the range of subclasses <class-ref scheme="cpc">C07C</class-ref>-<class-ref scheme="cpc">C07K</class-ref> and within these subclasses.</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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C07J.xml" sort-key="C07J" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C07J</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>STEROIDS </text><reference><text>seco-steroids <class-ref scheme="cpc">C07C</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> This subclass <u>covers</u> compounds containing a cyclopenta[a]hydrophenanthrene skeleton or a ring structure derived therefrom: <subnote type="bullet"><note-paragraph>by contraction or expansion of one ring by one or two atoms; </note-paragraph><note-paragraph>by contraction or expansion of two rings each by one atom; </note-paragraph><note-paragraph>by contraction of one ring by one atom and expansion of one ring by one atom; </note-paragraph><note-paragraph>by substitution of one or two carbon atoms of the cyclopenta[a]hydrophenanthrene skeleton, which are not shared by rings, by hetero atoms, in combination with the above defined contraction or expansion or not, or; </note-paragraph><note-paragraph>by condensation with carbocyclic or heterocyclic rings in combination with one or more of the foregoing alterations or not. </note-paragraph></subnote></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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C07K.xml" sort-key="C07K" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C07K</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PEPTIDES </text><reference><text>peptides in foodstuffs <class-ref scheme="cpc">A23</class-ref>; obtaining protein compositions for foodstuffs, working-up proteins for foodstuffs <class-ref scheme="cpc">A23J</class-ref>; preparations for medicinal purposes <class-ref scheme="cpc">A61K</class-ref>; peptides containing beta-lactam rings <class-ref scheme="cpc">C07D</class-ref>; cyclic dipeptides not having in their molecule any other peptide link than those which form their ring, e.g. piperazine-2,5-diones, <class-ref scheme="cpc">C07D</class-ref>; ergot alkaloids of the cyclic peptide type <class-ref scheme="cpc">C07D519/02</class-ref>; macromolecular compounds having statistically distributed amino acid units in their molecules, i.e. when the preparation does not provide for a specific; but for a random sequence of the amino acid units, homopolyamides and block copolyamides derived from amino acids <class-ref scheme="cpc">C08G69/00</class-ref>; macromolecular products derived from proteins <class-ref scheme="cpc">C08H1/00</class-ref>; preparation of glue or gelatine <class-ref scheme="cpc">C09H</class-ref>; single cell proteins, enzymes <class-ref scheme="cpc">C12N</class-ref>; genetic engineering processes for obtaining peptides <class-ref scheme="cpc">C12N15/00</class-ref>; compositions for measuring or testing processes involving enzymes <class-ref scheme="cpc">C12Q</class-ref>; investigation or analysis of biological material <class-ref scheme="cpc">G01N33/00</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this subclass, the following terms or expressions are used with the meanings indicated: <subnote type="bullet"><note-paragraph>"amino acids" are compounds in which at least one amino group and at least one carboxyl group are bound to the same carbon skeleton and the nitrogen atom of the amino group may form part of a ring;</note-paragraph><note-paragraph>"normal peptide link" is one between an alpha-amino group of an amino acid and the carboxyl group - in position 1 - of another alpha-amino acid;</note-paragraph><note-paragraph>"abnormal peptide link" is a link where at least one of the linked amino acids is not an alpha-amino acid or a link formed by at least one carboxyl or amino group being part of the side chain of a alpha-amino acid;</note-paragraph><note-paragraph>"peptides" are compounds containing at least two amino acid units, which are bound through at least one normal peptide link, including oligopeptides, polypeptides and proteins, where:<subnote type="roman"><note-paragraph>"linear peptides" may comprise rings formed through S-S bridges, or through a hydroxy or a mercapto group of an hydroxy- or mercapto-amino acid and the carboxyl group of another amino acid, (e.g. peptide lactones) but do not comprise rings which are formed only through peptide links;</note-paragraph><note-paragraph>"cyclic peptides" are peptides comprising at least one ring formed only through peptide links; the cyclisation may occur only through normal peptide links or through abnormal peptide links, e.g. through the 4-amino group of 2,4-diamino-butanoic acid. Thus, cyclic compounds in which at least one link in the ring is a non-peptide link are considered as "linear peptides";</note-paragraph><note-paragraph>"depsipeptides" are compounds containing a sequence of at least two alpha-amino acids and at least one alpha-hydroxy carboxylic acid, which are bound through at least one normal peptide link and ester links, derived from the hydroxy carboxylic acids, where:<subnote type="alpha"><note-paragraph>"linear depsipeptides" may comprise rings formed through S-S bridges, or through an hydroxy or a mercapto group of an hydroxy- or mercapto-amino acid and the carboxyl group of another amino- of hydroxy-acid but do not comprise rings formed only through peptide or ester links derived from hydroxy carboxylic acids, e.g. Gly-Ala-Gly-OCH<sub>2</sub>CO<sub>2</sub>H and Gly-OCH<sub>2</sub>CO-Ala-Gly are considered as "linear depsipeptides", but HOCH<sub>2</sub>CO-Gly-Ala-Gly does not contain an ester link, and is thus a derivative of Gly-Ala-Gly which is covered by <class-ref scheme="cpc">C07K5/08</class-ref>;</note-paragraph><note-paragraph>"cyclic depsipeptides" are peptides containing at least one ring formed only through peptide or ester links - derived from hydroxy carboxylic acids -, e.g. Gly-Ala-Gly-OCH<sub>2</sub>CO.</note-paragraph></subnote></note-paragraph></subnote></note-paragraph></subnote></note-paragraph><note-paragraph> Fragments of peptides or peptides modified by removal or addition of amino acids, by substitution of amino acids by others, or by combination of these modifications, are classified as the parent peptides. However, fragments of peptides having only four or less amino acids are also classified in group <class-ref scheme="cpc">C07K5/00</class-ref>. </note-paragraph><note-paragraph>Peptides prepared by chemical processes and having an amino acid sequence derived from naturally occurring peptides are classified with the natural one.</note-paragraph><note-paragraph>Peptides prepared by recombinant DNA technology are not classified according to the host, but according to the original peptide expressed, e.g. HIV peptide expressed in E. coli is classified with HIV peptides.</note-paragraph><note-paragraph> When classifying in this subclass, classification is also made in group <class-ref scheme="cpc">B01D15/08</class-ref> insofar as subject matter of general interest relating to chromatography is concerned. </note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C07K5/023</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/0202</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/027</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/0205</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/03</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/0207</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/033</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/021</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/037</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/0215</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/062</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/06017</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/065</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/06078</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/068</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/06086</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/072</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/06104</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/075</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/0613</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/078</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/06139</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/083</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/0804</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/087</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/0812</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/09</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/0815</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/093</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/0819</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/097</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/0821</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/103</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/1005</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/107</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/1016</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/11</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/1019</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/113</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/1021</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K5/117</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K5/1024</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K14/185</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/1816</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K14/725</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/705</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K14/73</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/70514</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K14/735</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/70535</class-ref></entry></row><row><entry><class-ref scheme="ipc">C07K14/74</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/70539</class-ref></entry></row></table></note-paragraph><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></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C08" date-revised="2019-05-01" status="published"><classification-symbol>C08</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>ORGANIC MACROMOLECULAR COMPOUNDS</text></title-part><title-part><text>THEIR PREPARATION OR CHEMICAL WORKING-UP</text></title-part><title-part><text>COMPOSITIONS BASED THEREON</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C08B.xml" sort-key="C08B" definition-exists="true" date-revised="2019-08-01" status="published"><classification-symbol>C08B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>POLYSACCHARIDES</text></title-part><title-part><text>DERIVATIVES THEREOF </text><reference><text>polysaccharides containing less than six saccharide radicals attached to each other by glycosidic linkages <class-ref scheme="cpc">C07H</class-ref>; fermentation or enzyme-using processes <class-ref scheme="cpc">C12P19/00</class-ref>; sugar industry <class-ref scheme="cpc">C13</class-ref>; production of cellulose <class-ref scheme="cpc">D21</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C08B37/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08B37/0021</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08B37/04</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08B37/0084</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08B37/06</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08B37/0045</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08B37/08</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C08B37/003</class-ref> (chitin), <class-ref scheme="cpc">C08B37/0072</class-ref> (hyaluronic acid) and <class-ref scheme="cpc">C08B37/0069</class-ref> (chondroitin sulfate) </entry></row><row><entry><class-ref scheme="ipc">C08B37/10</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08B37/0075</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08B37/16</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08B37/0012</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C08C.xml" sort-key="C08C" definition-exists="true" date-revised="2019-01-01" status="published"><classification-symbol>C08C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass covers: <subnote type="bullet"><note-paragraph>processes directed to natural rubber or to conjugated diene rubbers <br/></note-paragraph><note-paragraph>processes directed to rubbers in general. </note-paragraph></subnote></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C08C1/16</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08C1/14</class-ref></entry></row></table></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C08F.xml" sort-key="C08F" definition-exists="true" date-revised="2020-02-01" status="published"><classification-symbol>C08F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, boron or silicon are considered as metals. </note-paragraph><note-paragraph>In this subclass, the following expression is used with the meaning indicated: <subnote type="bullet"><note-paragraph> "aliphatic radical" means an acyclic or a non-aromatic carbocyclic carbon skeleton which is considered to be terminated by every bond to: <subnote type="alpha"><note-paragraph> an element other than carbon; </note-paragraph><note-paragraph> a carbon atom having a double bond to one atom other than carbon; </note-paragraph><note-paragraph> an aromatic carbocyclic ring or a heterocyclic ring. <br/>Examples: Polymers of <subnote type="alpha"><note-paragraph> CH<sub>2</sub> =CH—O—CH<sub>2</sub>—CH<sub>2</sub>—NH—COO—CH<sub>2</sub>-CH<sub>2</sub> —OH are classified in group <class-ref scheme="cpc">C08F16/28</class-ref>; <br/> </note-paragraph><note-paragraph>CH<sub>2</sub>=CH-C(=O)-CH=CH<sub>2</sub> are classified in group <class-ref scheme="cpc">C08F16/36</class-ref></note-paragraph><note-paragraph>para-C<sub>6</sub>H<sub>4</sub>Cl(CH=CH<sub>2</sub>) are classified in group <class-ref scheme="cpc">C08F12/18</class-ref>. </note-paragraph></subnote></note-paragraph></subnote></note-paragraph></subnote></note-paragraph><note-paragraph> Therapeutic activity of compounds is further classified in subclass <class-ref scheme="cpc">A61P</class-ref>. </note-paragraph><note-paragraph>In this subclass, in the absence of an indication to the contrary in the scheme or definitions, classification is made in the last appropriate place.</note-paragraph><note-paragraph> In this subclass:<subnote type="alpha"><note-paragraph> macromolecular compounds and their preparation are classified in the groups for the type of compound prepared. General processes for the preparation of macromolecular compounds according to more than one main group are classified in groups <class-ref scheme="cpc">C08F2/00</class-ref>-<class-ref scheme="cpc">C08F8/00</class-ref> for the processes employed. Processes for the preparation of macromolecular compounds are also classified in the groups for the types of reactions employed, if of interest; </note-paragraph><note-paragraph> subject matter relating to both homopolymers and copolymers is classified in groups <class-ref scheme="cpc">C08F10/00</class-ref>-<class-ref scheme="cpc">C08F38/00</class-ref>; </note-paragraph><note-paragraph>subject matter limited to homopolymers is classified only in groups <class-ref scheme="cpc">C08F110/00</class-ref>-<class-ref scheme="cpc">C08F138/00</class-ref>; </note-paragraph><note-paragraph>subject matter limited to copolymers is classified only in groups <class-ref scheme="cpc">C08F210/00</class-ref>-<class-ref scheme="cpc">C08F246/00</class-ref>; </note-paragraph><note-paragraph>in groups <class-ref scheme="cpc">C08F210/00</class-ref>-<class-ref scheme="cpc">C08F238/00</class-ref>, in the absence of an indication to the contrary, a copolymer is classified according to the major monomeric component. </note-paragraph></subnote></note-paragraph><note-paragraph>This subclass <u>covers </u> also compositions based on monomers which form macromolecular compounds classifiable in this subclass. In this subclass: <subnote type="alpha"><note-paragraph>if the monomers are defined, classification is made according to the polymer to be formed: <subnote type="bullet"><note-paragraph>in groups <class-ref scheme="cpc">C08F10/00</class-ref>-<class-ref scheme="cpc">C08F246/00</class-ref> if no preformed polymer is present; </note-paragraph><note-paragraph>in groups <class-ref scheme="cpc">C08F251/00</class-ref> - <class-ref scheme="cpc">C08F291/00</class-ref> if a preformed polymer is present, considering <CPC-specific-note>or not</CPC-specific-note> the reaction to take place as a graft or cross-linking reaction;</note-paragraph></subnote></note-paragraph><note-paragraph>if the presence of compounding ingredients is of interest, classification is made in group <class-ref scheme="cpc">C08F2/44</class-ref> </note-paragraph><note-paragraph>if the compounding ingredients are of interest <u>per se</u> , classification is also made in subclass <class-ref scheme="cpc">C08K</class-ref>. </note-paragraph></subnote></note-paragraph><note-paragraph><CPC-specific-note>In this subclass, combination sets [C-Sets] are used. The detailed information about the C-Sets construction and the associated syntax rules are found in the Definitions</CPC-specific-note> </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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C08G.xml" sort-key="C08G" definition-exists="true" date-revised="2020-02-01" status="published"><classification-symbol>C08G</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>Therapeutic activity of compounds is further classified in subclass <class-ref scheme="cpc">A61P</class-ref>.</note-paragraph><note-paragraph>In this subclass, group <class-ref scheme="cpc">C08G18/00</class-ref> takes precedence over the other groups. A further classification is given if the polymers are obtained by reactions forming specific linkages for which an appropriate group is provided.</note-paragraph><note-paragraph>Within each main group of this subclass, the last place priority rule is applied, i.e. at each hierarchical level, in the absence of an indication to the contrary, classification is made in the last appropriate place.</note-paragraph><note-paragraph>This subclass <u>covers</u> also compositions based on monomers which form macromolecular compounds classifiable in this subclass. In this subclass:<subnote type="alpha"><note-paragraph>if the monomers are defined, classification is made in groups <class-ref scheme="cpc">C08G2/00</class-ref> - <class-ref scheme="cpc">C08G79/00</class-ref>, <class-ref scheme="cpc">C08G83/00</class-ref> according to the polymer to be formed;</note-paragraph><note-paragraph> if the monomers are defined in a way that a composition cannot be classified within one main group of this subclass, the composition is classified in group <class-ref scheme="cpc">C08G85/00</class-ref>;</note-paragraph><note-paragraph>if the compounding ingredients are of interest <u>per se</u>, classification is also made in subclass <class-ref scheme="cpc">C08K</class-ref>.</note-paragraph></subnote></note-paragraph><note-paragraph><CPC-specific-note>In this subclass, combination sets [C-Sets] are used. The detailed information about the C-Sets construction and the associated syntax rules are found in the Definitions</CPC-specific-note></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C08G14/067</class-ref>, <class-ref scheme="ipc">C08G14/073</class-ref>, <class-ref scheme="ipc">C08G14/09</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08G14/06</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08G59/16</class-ref>, <class-ref scheme="ipc">C08G59/17</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08G59/14</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08G63/49</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08G63/48</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08G65/28</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08G65/26</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08G73/04</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08G73/02</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C08H.xml" sort-key="C08H" definition-exists="true" date-revised="2019-08-01" status="published"><classification-symbol>C08H</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS </text><reference><text>polysaccharides <class-ref scheme="cpc">C08B</class-ref>; natural rubber <class-ref scheme="cpc">C08C</class-ref>; natural resins or their derivatives <class-ref scheme="cpc">C09F</class-ref>; bituminous materials <class-ref scheme="cpc">C10</class-ref></text></reference></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C08H7/00</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08H6/00</class-ref></entry></row></table></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C08J.xml" sort-key="C08J" definition-exists="true" date-revised="2021-05-01" status="published"><classification-symbol>C08J</classification-symbol><class-title date-revised="2021-05-01"><title-part><text>WORKING-UP</text></title-part><title-part><text>GENERAL PROCESSES OF COMPOUNDING</text></title-part><title-part><text>AFTER-TREATMENT NOT COVERED BY SUBCLASSES <class-ref scheme="cpc">C08B</class-ref>, <class-ref scheme="cpc">C08C</class-ref>, <class-ref scheme="cpc">C08F</class-ref>, <class-ref scheme="cpc">C08G</class-ref> or <class-ref scheme="cpc">C08H</class-ref> </text><reference><text>working, e.g. shaping, of plastics <class-ref scheme="cpc">B29</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers</u> processes, not covered by subclasses <class-ref scheme="cpc">C08B</class-ref> - <class-ref scheme="cpc">C08H</class-ref>, for treating polymers. <br/> In this subclass, in the absence of an indication to the contrary, classification is made in the last appropriate place. <br/></note-paragraph><note-paragraph>When classifying in subclass <class-ref scheme="cpc">C08J</class-ref>, the treatment of specific polymers is indicated using indexing codes chosen from <class-ref scheme="cpc">C08J2300/00</class-ref> or subgroups thereof. <br/> Example: <subnote type="bullet"><note-paragraph>Preparation of particles of polystyrene by impregnation of the particles with the blowing agent: <class-ref scheme="cpc">C08J9/18</class-ref> and <class-ref scheme="cpc">C08J2325/06</class-ref>. </note-paragraph></subnote><br/> </note-paragraph><note-paragraph>The use of a polymeric component in minority, e.g. masterbatch, coating, impregnating agent or thin binder is indicated using indexing codes chosen from <class-ref scheme="cpc">C08J2400/00</class-ref> or subgroups thereof. <br/>Examples: <subnote type="bullet"><note-paragraph>Use of PMMA as masterbatch in a polystyrene composition: <class-ref scheme="cpc">C08J3/226</class-ref> and <class-ref scheme="cpc">C08J2325/06</class-ref> and <class-ref scheme="cpc">C08J2433/10</class-ref></note-paragraph><note-paragraph>Bonding of polystyrene by heating: <class-ref scheme="cpc">C08J5/121</class-ref> and <class-ref scheme="cpc">C08J2325/06</class-ref></note-paragraph><note-paragraph>Coating of a polyethylene substrate with a polyurethane coating: <class-ref scheme="cpc">C08J7/0427</class-ref> and <class-ref scheme="cpc">C08J2323/06</class-ref> and <class-ref scheme="cpc">C08J2475/04</class-ref></note-paragraph><note-paragraph>Use of ABS as an additive for foamed polyacrylamide : <class-ref scheme="cpc">C08J9/0061</class-ref> and <class-ref scheme="cpc">C08J2333/26</class-ref> and <class-ref scheme="cpc">C08J2455/02</class-ref><br/></note-paragraph></subnote></note-paragraph><note-paragraph>In the following subgroups, the codes of <class-ref scheme="cpc">C08J2300/00</class-ref> - <class-ref scheme="cpc">C08J2399/00</class-ref> are used to specify: <subnote type="bullet"><note-paragraph><class-ref scheme="cpc">C08J3/226</class-ref>: the polymeric material to which the masterbatch carrier is added. </note-paragraph><note-paragraph><class-ref scheme="cpc">C08J7/0427</class-ref>: the polymeric substrate to be coated. </note-paragraph><note-paragraph><class-ref scheme="cpc">C08J9/0061</class-ref>: the polymeric component in majority in a multicomponents foamable blend. </note-paragraph></subnote></note-paragraph><note-paragraph>Group <class-ref scheme="cpc">C08J2400/00</class-ref> was introduced on January 1st, 2012. Patent documents are continuously being reclassified. As a consequence, documents published before 01/01/2012, and to which <class-ref scheme="cpc">C08J2400/00</class-ref> indexing codes were allocated, are indexed in the corresponding head group. <br/>Example: <subnote type="bullet"><note-paragraph>Use of PMMA as masterbatch in a polystyrene composition: <class-ref scheme="cpc">C08J3/226</class-ref> and <class-ref scheme="cpc">C08J2325/06</class-ref> and <class-ref scheme="cpc">C08J2433/00</class-ref>, instead of <class-ref scheme="cpc">C08J2433/10</class-ref>.</note-paragraph></subnote></note-paragraph><note-paragraph> In the following subgroups, the codes of <class-ref scheme="cpc">C08J2400/00</class-ref> - <class-ref scheme="cpc">C08J2499/00</class-ref> are used to specify: <subnote type="bullet"><note-paragraph><class-ref scheme="cpc">C08J3/226</class-ref>: the polymeric carrier in a masterbatch. </note-paragraph><note-paragraph><class-ref scheme="cpc">C08J5/12</class-ref>: the chemical nature of the adhesive </note-paragraph><note-paragraph><class-ref scheme="cpc">C08J7/0427</class-ref>: the chemical nature of the coating(s). </note-paragraph><note-paragraph><class-ref scheme="cpc">C08J9/0061</class-ref>: the polymeric component in minority in a multicomponents foamable blend. </note-paragraph><note-paragraph><class-ref scheme="cpc">C08J9/224</class-ref>, <class-ref scheme="cpc">C08J9/236</class-ref>, <class-ref scheme="cpc">C08J9/36</class-ref>, <class-ref scheme="cpc">C08J9/40</class-ref> and <class-ref scheme="cpc">C08J9/42</class-ref>: the polymer used for coating, binding, or impregnating the foam. <class-ref scheme="cpc">C08J9/26</class-ref>: the polymer to be leached out. </note-paragraph><note-paragraph><class-ref scheme="cpc">C08J9/33</class-ref> and <class-ref scheme="cpc">C08J9/35</class-ref>: the foam fragments included in the (foamable) polymer matrix. </note-paragraph><note-paragraph>in all other subgroups, when the presence of a polymeric component in minority is of relevance. </note-paragraph></subnote></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C08J5/14</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">B24D3/22</class-ref>, <class-ref scheme="cpc">B24D3/28</class-ref>, <class-ref scheme="cpc">F16D69/02</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08J5/16</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C10N2050/14</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C08K.xml" sort-key="C08K" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C08K</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Use of inorganic or non-macromolecular organic substances as compounding ingredients </text><reference><text>paints, inks, varnishes, dyes, polishes, adhesives <class-ref scheme="cpc">C09</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, in the absence of an indication to the contrary, an ingredient is classified in the last appropriate place.<br/> </note-paragraph><note-paragraph>In this subclass: <subnote type="bullet"><note-paragraph>a mixture of ingredients is classified in the most indented group covering all the essential ingredients of the mixture, e.g.: <br/> <subnote><note-paragraph> a mixture of a monohydric and a polyhydric alcohol <class-ref scheme="cpc">C08K5/05</class-ref><br/> </note-paragraph><note-paragraph> a mixture of two polyhydric alcohols <class-ref scheme="cpc">C08K5/053</class-ref><br/> </note-paragraph><note-paragraph> a mixture of an alcohol and an ether <class-ref scheme="cpc">C08K5/04</class-ref><br/> </note-paragraph><note-paragraph> a mixture of an ether and an amine <class-ref scheme="cpc">C08K5/00</class-ref><br/> </note-paragraph><note-paragraph> a mixture of an amine and a metal <class-ref scheme="cpc">C08K13/02</class-ref> <br/><CPC-specific-note>This note is applied only for mixtures with more than three essential ingredients. Mixtures with two or three ingredients are classified in the appropriate groups of <class-ref scheme="cpc">C08K</class-ref>, e.g. a mixture of Al2O3, an ether and an amine is classified in <class-ref scheme="cpc">C08K3/22</class-ref>, <class-ref scheme="cpc">C08K5/06</class-ref> and <class-ref scheme="cpc">C08K5/17</class-ref></CPC-specific-note><br/></note-paragraph></subnote> </note-paragraph><note-paragraph>ammonium salts are classified in the same way as metal salts<br/> </note-paragraph></subnote></note-paragraph><note-paragraph> In this subclass, any ingredient of a mixture which is not identified by the classification according to Note (2) above, and the use of which is determined to be novel and non-obvious, must also be classified in this subclass according to Note (1). The ingredient can be either a single compound or a composition in itself. ".<CPC-specific-note>This IPC Note does not apply in CPC</CPC-specific-note> <br/> </note-paragraph><note-paragraph> Any ingredient of a mixture which is not identified by the classification according to Notes (2) or (3) above, and which is considered to represent information of interest for search, may also be classified in this subclass according to Note (1). This can, for example, be the case when it is considered of interest to enable searching of mixtures using a combination of classification symbols. Such non-obligatory classification should be given as "additional information".<CPC-specific-note>This IPC Note does not apply in CPC</CPC-specific-note><br/> </note-paragraph><note-paragraph> <CPC-specific-note>In this subclass, combination sets [C-Sets] are used. The detailed information about the C-Sets construction and the associated syntax rules is present in the definitions of <class-ref scheme="cpc">C08K</class-ref></CPC-specific-note><br/> </note-paragraph><note-paragraph> <CPC-specific-note>In this subclass, organic acid salts, alcoholates, phenolates or mercaptides are classified in the groups or subgroups of the parent compounds</CPC-specific-note><br/> </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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C08L.xml" sort-key="C08L" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C08L</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS </text><reference><text>compositions based on polymerisable monomers <class-ref scheme="cpc">C08F</class-ref>, <class-ref scheme="cpc">C08G</class-ref>; artificial filaments or fibres <class-ref scheme="cpc">D01F</class-ref>; textile treating compositions <class-ref scheme="cpc">D06</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, the following term is used with the meaning indicated:<subnote type="bullet"><note-paragraph>Rubber includes:<subnote type="alpha"><note-paragraph>natural or conjugated diene rubbers;</note-paragraph><note-paragraph>rubber in general (for a specific rubber, other than a natural rubber or a conjugated diene rubber, see the group provided for compositions of such macromolecular compounds).</note-paragraph></subnote></note-paragraph></subnote></note-paragraph><note-paragraph> In this subclass:<subnote type="alpha"><note-paragraph>compositions are classified according to the mutual proportions by weight of only the macromolecular constituents; </note-paragraph><note-paragraph> compositions are classified according to the macromolecular constituent or constituents present in the highest proportion: if all these constituents are present in equal proportions the composition is classified according to each of these constituents. </note-paragraph></subnote></note-paragraph><note-paragraph>Any macromolecular constituent of a composition which is not identified by the classification according to Note (2) above, and the use of which is determined to be novel and non-obvious, must also be classified in this subclass. For example, a composition containing 80 parts polyethene and 20 parts polyvinyl chloride is classified in both groups <class-ref scheme="cpc">C08L23/06</class-ref> and <class-ref scheme="cpc">C08L27/06</class-ref>, if the use of polyvinyl chloride is determined to be novel and non-obvious. <CPC-specific-note>This IPC Note does not apply in CPC</CPC-specific-note></note-paragraph><note-paragraph>Any macromolecular constituent of a composition which is not identified by the classification according to Notes (2) or (3) above, and which is considered to represent information of interest for search, may also be classified in this subclass. This can, for example, be the case when it is considered of interest to enable searching of compositions using a combination of classification symbols. Such non-obligatory classification should be given as "additional information". <CPC-specific-note>This IPC Note does not apply in CPC</CPC-specific-note> </note-paragraph><note-paragraph>In groups <class-ref scheme="cpc">C08L65/00</class-ref> - <class-ref scheme="cpc">C08L85/00</class-ref>, in the absence of an indication to the contrary, compositions of macromolecular compounds obtained by reactions forming two different linkages in the main chain are classified only according to the linkage present in excess.<CPC-specific-note>This Note corresponds to IPC Note (1) relating to <class-ref scheme="cpc">C08L65/00</class-ref> - <class-ref scheme="cpc">C08L85/00</class-ref>.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>Compositions classified in <class-ref scheme="cpc">C08K</class-ref> according to note 3 of <class-ref scheme="cpc">C08K</class-ref>, are not classified in <class-ref scheme="cpc">C08L</class-ref>.</CPC-specific-note> </note-paragraph><note-paragraph> <CPC-specific-note>In this subclass, combination sets [C-Sets] are used. The detailed information about the C-Sets construction and the associated syntax rules is present in the definitions of <class-ref scheme="cpc">C08L</class-ref></CPC-specific-note> </note-paragraph><note-paragraph><CPC-specific-note><class-ref scheme="cpc">C08L2666/00</class-ref> indexing codes were used for C-Sets classification of documents before April 2012. In addition to note (6), for searching documents classified before April 2012, see also <class-ref scheme="cpc">C08L2666/00</class-ref> in the definitions of <class-ref scheme="cpc">C08L</class-ref>.</CPC-specific-note></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C08L61/08</class-ref>-<class-ref scheme="ipc">C08L61/10</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08L61/06</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08L63/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08L63/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08L83/05</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08L83/04</class-ref></entry></row><row><entry><class-ref scheme="ipc">C08L83/07</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C08L83/04</class-ref></entry></row></table></note-paragraph><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></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C09" date-revised="2019-05-01" status="published"><classification-symbol>C09</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>DYES</text></title-part><title-part><text>PAINTS</text></title-part><title-part><text>POLISHES</text></title-part><title-part><text>NATURAL RESINS</text></title-part><title-part><text>ADHESIVES</text></title-part><title-part><text>COMPOSITIONS NOT OTHERWISE PROVIDED FOR</text></title-part><title-part><text>APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C09B.xml" sort-key="C09B" definition-exists="true" date-revised="2022-08-01" status="published"><classification-symbol>C09B</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES </text><CPC-specific-text><text>, e.g. PIGMENTS</text></CPC-specific-text></title-part><title-part><text>MORDANTS</text></title-part><title-part><text>LAKES </text><reference><text>fermentation or enzyme using processes to synthesise a desired chemical compound <class-ref scheme="cpc">C12P</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, in the absence of an indication to the contrary, a compound is classified in the last appropriate place</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C09B23/01</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B23/0008</class-ref> - <class-ref scheme="cpc">C09B23/0091</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/01</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/0003</class-ref> - <class-ref scheme="cpc">C09B29/0022</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/03</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/0007</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/033</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/0025</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/036</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/0029</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/039</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/0074</class-ref> - <class-ref scheme="cpc">C09B29/0081</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/042</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/0085</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/045</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/0088</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/048</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/0092</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/085</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/0003</class-ref>, <class-ref scheme="cpc">C09B29/0801</class-ref> - <class-ref scheme="cpc">C09B29/0848</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/09</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/0025</class-ref>, <class-ref scheme="cpc">C09B29/0801</class-ref> - <class-ref scheme="cpc">C09B29/0848</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/15</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/103</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/40</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/3608</class-ref> - <class-ref scheme="cpc">C09B29/3613</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/42</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/3617</class-ref> - <class-ref scheme="cpc">C09B29/3639</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/44</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/3643</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/46</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/3652</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/48</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/3656</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/50</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/366</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B29/52</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B29/3665</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B33/13</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B33/12</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0097</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/04</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0001</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/06</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0003</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/08</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0004</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/10</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0014</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/12</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0016</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/14</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0017</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/16</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0019</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/18</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/002</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/20</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/006</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/22</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0033</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/24</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0072</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/26</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0073</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/28</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0077</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/30</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0078</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/32</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0075</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/34</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0076</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/36</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0079</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/38</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/008</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/40</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0082</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/42</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0071</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/44</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0083</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/46</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0084</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/48</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0025</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/50</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0026</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/52</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0027</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09B67/54</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09B67/0096</class-ref></entry></row></table></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C09C.xml" sort-key="C09C" definition-exists="true" date-revised="2023-02-01" status="published"><classification-symbol>C09C</classification-symbol><class-title date-revised="2023-02-01"><title-part><text>TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES  </text><reference><text>treatment of materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone <class-ref scheme="cpc">C04B14/00</class-ref>, <class-ref scheme="cpc">C04B18/00</class-ref>, <class-ref scheme="cpc">C04B20/00</class-ref></text></reference></title-part><title-part><text>PREPARATION OF CARBON BLACK  </text><CPC-specific-text><text>; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, in the absence of an indication to the contrary, a compound is classified in the last appropriate place</note-paragraph><note-paragraph>Treatment by polymerisation onto particle is classified in <class-ref scheme="cpc">C08F292/00</class-ref>. Only treatment by already polymerised agents is classified in <class-ref scheme="cpc">C09C</class-ref></note-paragraph><note-paragraph>Whenever in groups <class-ref scheme="cpc">C09C1/00</class-ref> - <class-ref scheme="cpc">C09C1/66</class-ref> the materials consist of a particulate core bearing a coating or any other deposit, classification is done only according to the composition of the core, unless otherwise stated, e.g. <class-ref scheme="cpc">C09C1/0015</class-ref>, <class-ref scheme="cpc">C09C1/0078</class-ref></note-paragraph><note-paragraph>Preparations of those materials which are no single chemical compounds comprise those of many ceramic pigments (<class-ref scheme="cpc">C09C1/0009</class-ref>), consisting of solid solutions or polycristalline structures, and those defined as composite materials (<class-ref scheme="cpc">C09C1/0081</class-ref>)</note-paragraph><note-paragraph>Preparation and treatment steps are not always easy to distinguish from each other, e.g. preparation in the presence of treating agents (by precipitation or calcination), precise reacting conditions, affecting pigmentary effects. It is common practice to include these complex topics in <class-ref scheme="cpc">C09C1/00</class-ref> while avoiding redundancy</note-paragraph><note-paragraph>When classifying in this subclass, the indexing codes of subclass <class-ref scheme="cpc">C01P</class-ref> are used to identify structural or physical aspects of solid inorganic compounds</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C09C1/68</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09K3/14</class-ref></entry></row></table></note-paragraph><note-paragraph><CPC-specific-note>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.</CPC-specific-note></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C09D.xml" sort-key="C09D" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C09D</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS</text></title-part><title-part><text>FILLING PASTES</text></title-part><title-part><text>CHEMICAL PAINT OR INK REMOVERS</text></title-part><title-part><text>INKS</text></title-part><title-part><text>CORRECTING FLUIDS</text></title-part><title-part><text>WOODSTAINS</text></title-part><title-part><text>PASTES OR SOLIDS FOR COLOURING OR PRINTING</text></title-part><title-part><text>USE OF MATERIALS THEREFOR </text><reference><text>cosmetics <class-ref scheme="cpc">A61K</class-ref>; processes for applying liquids or other fluent materials to surfaces, in general, <class-ref scheme="cpc">B05D</class-ref>; staining wood <class-ref scheme="cpc">B27K5/02</class-ref>; glazes or vitreous enamels <class-ref scheme="cpc">C03C</class-ref>; natural resins, French polish, drying-oils, driers, turpentine, <u>per se</u>, <class-ref scheme="cpc">C09F</class-ref>; polishing compositions other than French polish, ski waxes <class-ref scheme="cpc">C09G</class-ref>; adhesives or use of materials as adhesives <class-ref scheme="cpc">C09J</class-ref>; materials for sealing or packing joints or covers <class-ref scheme="cpc">C09K3/10</class-ref>; materials for stopping leaks <class-ref scheme="cpc">C09K3/12</class-ref>; processes for the electrolytic or electrophoretic production of coatings <class-ref scheme="cpc">C25D</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this subclass, the following terms or expressions are used with the meanings indicated: <subnote type="bullet"><note-paragraph>"use of materials for coating compositions" means the use of known or new polymers or products;</note-paragraph><note-paragraph>"rubber" includes:<subnote type="alpha"><note-paragraph>natural or conjugated diene rubbers;</note-paragraph><note-paragraph>rubber in general (for a specific rubber, other than a natural rubber or a conjugated diene rubber, see the group provided for coating compositions based on such macromolecular compounds);<subnote type="bullet"><note-paragraph> "based on" is defined by means of Note (3), below; </note-paragraph><note-paragraph> "filling pastes" means materials used to fill up the holes or cavities of a substrate in order to smooth its surface prior to coating. </note-paragraph></subnote></note-paragraph></subnote></note-paragraph></subnote></note-paragraph><note-paragraph> In this subclass, coating compositions, containing specific organic macromolecular substances are classified only according to the macromolecular substance, non-macromolecular substances not being taken into account. <subnote><note-paragraph>Example: a coating composition containing polyethene and amino-propyltrimethoxysilane is classified in group <class-ref scheme="cpc">C09D123/06</class-ref>.</note-paragraph><note-paragraph>However, coating compositions containing combinations of organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond with prepolymers or polymers other than unsaturated polymers of groups <class-ref scheme="cpc">C09D159/00</class-ref> - <class-ref scheme="cpc">C09D187/00</class-ref> are classified according to the unsaturated non-macromolecular component in group <class-ref scheme="cpc">C09D4/00</class-ref>. </note-paragraph><note-paragraph> Example: a coating composition containing polyethene and styrene monomer is classified in group <class-ref scheme="cpc">C09D4/00</class-ref>. </note-paragraph><note-paragraph>Aspects relating to the physical nature of the coating compositions or to the effects produced, as defined in group <class-ref scheme="cpc">C09D5/00</class-ref>, if clearly and explicitly stated, are also classified in this subclass. </note-paragraph><note-paragraph>Coating compositions characterised by other features, e.g. additives, are classified in group <class-ref scheme="cpc">C09D7/00</class-ref>, unless the macromolecular constituent is specified. </note-paragraph></subnote></note-paragraph><note-paragraph> In this subclass, coating compositions comprising two or more macromolecular constituents are classified according to the macromolecular constituent or constituents present in the highest proportion, i.e. the constituent on which the composition is based. If the composition is based on two or more constituents, present in equal proportions, the composition is classified according to each of these constituents. <br/><subnote><note-paragraph> Example: a coating composition containing 80 parts of polyethene and 20 parts of polyvinylchloride is classified in group <class-ref scheme="cpc">C09D123/06</class-ref>. A coating composition containing 40 parts of polyethene and 40 parts of polyvinylchloride is classified in groups <class-ref scheme="cpc">C09D123/06</class-ref> and <class-ref scheme="cpc">C09D127/06</class-ref>. </note-paragraph></subnote></note-paragraph><note-paragraph> In groups <class-ref scheme="cpc">C09D101/00</class-ref> - <class-ref scheme="cpc">C09D201/00</class-ref>, any macromolecular constituent of a coating composition which is not identified by the classification according to Note (3) after the title of subclass <class-ref scheme="cpc">C09D</class-ref>, and the use of which is determined to be novel and non-obvious, must also be classified in a group chosen from groups <class-ref scheme="cpc">C09D101/00</class-ref> - <class-ref scheme="cpc">C09D201/00</class-ref>. <br/><CPC-specific-note>This Note corresponds to IPC Note (1) relating to <class-ref scheme="cpc">C09D101/00</class-ref> - <class-ref scheme="cpc">C09D201/00</class-ref>.</CPC-specific-note> </note-paragraph><note-paragraph> Any macromolecular constituent of a coating composition which is not identified by the classification according to Note (3) after the title of subclass <class-ref scheme="cpc">C09D</class-ref> or Note (1) above, and which is considered to represent information of interest for search, may also be classified in a group chosen from groups <class-ref scheme="cpc">C09D101/00</class-ref> - <class-ref scheme="cpc">C09D201/00</class-ref>. This can for example be the case when it is considered of interest to enable searching of coating compositions using a combination of classification symbols. Such non-obligatory classification should be given as "additional information." <CPC-specific-note>This Note corresponds to IPC Note (2) relating to <class-ref scheme="cpc">C09D101/00</class-ref> - <class-ref scheme="cpc">C09D201/00</class-ref>.</CPC-specific-note> </note-paragraph><note-paragraph>In groups <class-ref scheme="cpc">C09D165/00</class-ref> - <class-ref scheme="cpc">C09D185/00</class-ref>, in the absence of an indication to the contrary, coating compositions based on macromolecular compounds obtained by reactions forming two different linkages in the main chain are classified only according to the linkage present in excess.<br/><CPC-specific-note>This Note corresponds to IPC Note (1) relating to <class-ref scheme="cpc">C09D165/00</class-ref> - <class-ref scheme="cpc">C09D185/00</class-ref>.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>In this subclass, combination sets [C-Sets] are used. Detailed information about the CSets construction and the associated syntax rules is found in the definitions for <class-ref scheme="cpc">C09D</class-ref>.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>In addition to Note (4) above <class-ref scheme="cpc">C08L2666/00</class-ref> indexing codes were used for C-Sets classification of documents before April 2012. See C-Sets Search Rules in <class-ref scheme="cpc">C08L</class-ref>, in <class-ref scheme="cpc">C09D</class-ref>, or in <class-ref scheme="cpc">C09J</class-ref> Definitions.</CPC-specific-note></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C09D4/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09D4/00</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C09D4/04</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09D4/00</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C09D5/25</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">H01B3/30</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09D5/33</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09D5/004</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09D5/46</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09D5/03</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09D161/08</class-ref>, <class-ref scheme="ipc">C09D161/10</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09D161/06</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09D163/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09D163/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09D183/05</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09D183/04</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09D183/07</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09D183/04</class-ref>, <class-ref scheme="cpc">C09D183/06</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C09F.xml" sort-key="C09F" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C09F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>NATURAL RESINS</text></title-part><title-part><text>FRENCH POLISH</text></title-part><title-part><text>DRYING-OILS</text></title-part><title-part><text>DRIERS (SICCATIVES)</text></title-part><title-part><text>TURPENTINE</text></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C09G.xml" sort-key="C09G" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C09G</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>POLISHING COMPOSITIONS </text><reference><text>French polish <class-ref scheme="cpc">C09F11/00</class-ref></text></reference></title-part><title-part><text>SKI WAXES</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C09H.xml" sort-key="C09H" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C09H</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PREPARATION OF GLUE OR GELATINE</text></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C09J.xml" sort-key="C09J" definition-exists="true" date-revised="2021-02-01" status="published"><classification-symbol>C09J</classification-symbol><class-title date-revised="2021-02-01"><title-part><text>ADHESIVES</text></title-part><title-part><text>NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL</text></title-part><title-part><text>ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE</text></title-part><title-part><text>USE OF MATERIALS AS ADHESIVES </text><reference><text>preparation of glue or gelatine <class-ref scheme="cpc">C09H</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, the following terms or expressions are used with the meanings indicated:<subnote type="bullet"><note-paragraph>"use of materials as adhesives" means the use of known or new polymers or products;</note-paragraph><note-paragraph>"rubber" includes:<subnote type="alpha"><note-paragraph>natural or conjugated diene rubbers;</note-paragraph><note-paragraph>rubber in general (for a specific rubber, other than a natural rubber or a conjugated diene rubber, <u>see</u> the group provided for adhesives based on such macromolecular compounds);<subnote type="bullet"><note-paragraph>"based on" is defined by means of Note (3), below.</note-paragraph></subnote></note-paragraph></subnote></note-paragraph></subnote></note-paragraph><note-paragraph>In this subclass, adhesives containing specific macromolecular substances are classified only according to the macromolecular substance, non-macromolecular substances not being taken into account.<subnote type="bullet"><note-paragraph>Example: an adhesive containing polyethene and amino-propyltrimethoxysilane is classified in group <class-ref scheme="cpc">C09J123/06</class-ref>.</note-paragraph><note-paragraph> However, adhesives containing combinations of organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond with prepolymers or polymers other than unsaturated polymers of groups <class-ref scheme="cpc">C09J159/00</class-ref> - <class-ref scheme="cpc">C09J187/00</class-ref> are classified according to the unsaturated non-macromolecular component in group <class-ref scheme="cpc">C09J4/06</class-ref>.</note-paragraph><note-paragraph>Example: an adhesive containing polyethene and styrene monomer is classified in group <class-ref scheme="cpc">C09J4/06</class-ref>.</note-paragraph><note-paragraph>Aspects relating to the physical nature of the adhesives or to the effects produced, as defined in group <class-ref scheme="cpc">C09J9/00</class-ref>, if clearly and explicitly stated, are also classified in this subclass.</note-paragraph><note-paragraph> Adhesives characterised by other features, e.g. additives, are classified in group <class-ref scheme="cpc">C09J11/00</class-ref>, unless the macromolecular constituent is specified.</note-paragraph></subnote></note-paragraph><note-paragraph>In this subclass, adhesives comprising two or more macromolecular constituents are classified according to the macromolecular constituent or constituents present in the highest proportion, i.e. the constituent on which the adhesive is based. If the adhesive is based on two or more constituents, present in equal proportions, the adhesive is classified according to each of these constituents.<subnote type="bullet"><note-paragraph>Example: An adhesive containing 80 parts of polyethene and 20 parts of polyvinylchloride is classified in group <class-ref scheme="cpc">C09J123/06</class-ref>. An adhesive containing 40 parts of polyethene and 40 parts of polyvinylchloride is classified in groups <class-ref scheme="cpc">C09J123/06</class-ref> and <class-ref scheme="cpc">C09J127/06</class-ref>.</note-paragraph></subnote></note-paragraph><note-paragraph><CPC-specific-note>In groups <class-ref scheme="cpc">C09J101/00</class-ref> - <class-ref scheme="cpc">C09J201/00</class-ref>, any macromolecular constituent of an adhesive composition which is not identified by the classification according to Note (3) after the title of subclass <class-ref scheme="cpc">C09J</class-ref>, and the use of which is determined to be novel and non-obvious, must also be classified in a group chosen from groups <class-ref scheme="cpc">C09J101/00</class-ref> - <class-ref scheme="cpc">C09J201/00</class-ref>. This Note corresponds to IPC Note (1) relating to <class-ref scheme="cpc">C09J101/00</class-ref> - <class-ref scheme="cpc">C09J201/00</class-ref>.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>Any macromolecular constituent of an adhesive composition which is not identified by the classification according to Note (3) after the title of subclass <class-ref scheme="cpc">C09J</class-ref> or Note (4) above, and which is considered to represent information of interest for search, may also be classified in a group chosen from groups <class-ref scheme="cpc">C09J101/00</class-ref> - <class-ref scheme="cpc">C09J201/00</class-ref>. This can, for example, be the case when it is considered of interest to enable searching of adhesive compositions using a combination of classification symbols. Such non-obligatory classification should be given as "additional information". This Note corresponds to IPC Note (2) relating to <class-ref scheme="cpc">C09J101/00</class-ref> - <class-ref scheme="cpc">C09J201/00</class-ref>.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>In groups <class-ref scheme="cpc">C09J165/00</class-ref> - <class-ref scheme="cpc">C09J185/00</class-ref>, in the absence of an indication to the contrary, adhesives based on macromolecular compounds obtained by reactions forming two different linkages in the main chain are classified only according to the linkage present in excess.<br/>This Note corresponds to IPC Note (1) relating to <class-ref scheme="cpc">C09J165/00</class-ref> - <class-ref scheme="cpc">C09J185/00</class-ref>.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>An adhesive composition containing polyethylene and amino-propyltrimethoxysilane is classified in groups <class-ref scheme="cpc">C09J123/06</class-ref> and <class-ref scheme="cpc">C08K5/544</class-ref>.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>In this subclass, combination sets [C-Sets] are used. The detailed information about the C-Sets construction and the associated syntax rules are found in the Definitions of <class-ref scheme="cpc">C09J</class-ref>.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>In addition to Note (8), <class-ref scheme="cpc">C08L2666/00</class-ref> indexing codes were used for C-Sets classification of documents before April 2012 (see also C-Sets search rules in <class-ref scheme="cpc">C08L</class-ref>, <class-ref scheme="cpc">C09D</class-ref> and in the <class-ref scheme="cpc">C09J</class-ref> definition).</CPC-specific-note></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C09J4/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09J4/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09J4/04</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09J4/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09J161/08</class-ref> - <class-ref scheme="ipc">C09J161/10</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09J161/06</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09J163/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09J163/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09J183/05</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09J183/04</class-ref></entry></row><row><entry><class-ref scheme="ipc">C09J183/07</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C09J183/04</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C09K.xml" sort-key="C09K" definition-exists="true" date-revised="2019-08-01" status="published"><classification-symbol>C09K</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers</u> also the use of specified materials in general or their use for the applications not specially provided for elsewhere.</note-paragraph><note-paragraph> In this subclass, the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph>"materials" includes compositions.</note-paragraph></subnote></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C09K11/78</class-ref>-<class-ref scheme="ipc">C09K11/86</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C09K11/77</class-ref> - <class-ref scheme="cpc">C09K11/7798</class-ref>, <class-ref scheme="cpc">C09K11/87</class-ref>, <class-ref scheme="cpc">C09K11/88</class-ref>, <class-ref scheme="cpc">C09K11/89</class-ref> </entry></row></table></note-paragraph><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></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C10" date-revised="2013-01-01" status="published"><classification-symbol>C10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PETROLEUM, GAS OR COKE INDUSTRIES</text></title-part><title-part><text>TECHNICAL GASES CONTAINING CARBON MONOXIDE</text></title-part><title-part><text>FUELS</text></title-part><title-part><text>LUBRICANTS</text></title-part><title-part><text>PEAT</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C10B.xml" sort-key="C10B" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C10B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS </text><reference><text>cracking oils <class-ref scheme="cpc">C10G</class-ref>; underground gasification of minerals <class-ref scheme="cpc">E21B43/295</class-ref></text></reference></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C10C.xml" sort-key="C10C" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C10C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>WORKING-UP PITCH, ASPHALT, BITUMEN, TAR</text></title-part><title-part><text>PYROLIGNEOUS ACID </text><reference><text>compositions of bituminous materials <class-ref scheme="cpc">C08L95/00</class-ref>; carbon filaments by decomposition of organic filaments <class-ref scheme="cpc">D01F9/14</class-ref></text></reference></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C10F.xml" sort-key="C10F" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C10F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>DRYING OR WORKING-UP OF PEAT</text></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C10G.xml" sort-key="C10G" definition-exists="true" date-revised="2022-08-01" status="published"><classification-symbol>C10G</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>CRACKING HYDROCARBON OILS</text></title-part><title-part><text>PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION </text><reference><text>cracking to hydrogen or synthesis gas <class-ref scheme="cpc">C01B</class-ref>; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution <class-ref scheme="cpc">C07C</class-ref>; cracking to cokes <class-ref scheme="cpc">C10B</class-ref></text></reference></title-part><title-part><text>RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES</text></title-part><title-part><text>REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS</text></title-part><title-part><text>REFORMING OF NAPHTHA</text></title-part><title-part><text>MINERAL WAXES</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this subclass, <subnote type="bullet"><note-paragraph>groups <class-ref scheme="cpc">C10G9/00</class-ref> - <class-ref scheme="cpc">C10G49/00</class-ref> are limited to one-step processes;</note-paragraph><note-paragraph>combined or multi-step processes are covered by groups <class-ref scheme="cpc">C10G51/00</class-ref> - <class-ref scheme="cpc">C10G69/00</class-ref>;</note-paragraph><note-paragraph>refining or recovery of mineral waxes is covered by group <class-ref scheme="cpc">C10G73/00</class-ref></note-paragraph></subnote></note-paragraph><note-paragraph> In this subclass, the following terms or expressions are used with the meanings indicated: <subnote type="bullet"><note-paragraph>"in the presence of hydrogen" or "in the absence of hydrogen" mean treatments in which hydrogen, in free form or as hydrogen generating compounds, is added, or not added, respectively;</note-paragraph><note-paragraph>"hydrotreatment" is used for conversion processes as defined in group <class-ref scheme="cpc">C10G45/00</class-ref> or group <class-ref scheme="cpc">C10G47/00</class-ref>;</note-paragraph><note-paragraph>"hydrocarbon oils" covers mixtures of hydrocarbons such as tar oils or mineral oils.</note-paragraph></subnote></note-paragraph><note-paragraph>In this subclass, in the absence of an indication to the contrary, classification is made in the last appropriate place.</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C10G73/23</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C10G73/06</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C10H.xml" sort-key="C10H" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C10H</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PRODUCTION OF ACETYLENE BY WET METHODS </text><CPC-specific-text><reference><text>purification of acetylene <class-ref scheme="cpc">C07C7/00</class-ref></text></reference></CPC-specific-text></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C10J.xml" sort-key="C10J" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C10J</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES </text><reference><text>synthesis gas from liquid or gaseous hydrocarbons <class-ref scheme="cpc">C01B</class-ref>; underground gasification of minerals <class-ref scheme="cpc">E21B43/295</class-ref></text></reference></title-part><title-part><text>CARBURETTING AIR OR OTHER GASES</text></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C10K.xml" sort-key="C10K" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C10K</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE</text></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C10L.xml" sort-key="C10L" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C10L</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>FUELS NOT OTHERWISE PROVIDED FOR </text><reference><text>fuels for generating pressure gas, e.g. for rockets <class-ref scheme="cpc">C06D5/00</class-ref>; candles <class-ref scheme="cpc">C11C</class-ref>; nuclear fuel <class-ref scheme="cpc">G21C3/00</class-ref></text></reference></title-part><title-part><text>NATURAL GAS</text></title-part><title-part><text>SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES <class-ref scheme="cpc">C10G</class-ref>, <class-ref scheme="cpc">C10K</class-ref></text></title-part><title-part><text>LIQUEFIED PETROLEUM GAS</text></title-part><title-part><text>ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL</text></title-part><title-part><text>FIRELIGHTERS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> <CPC-specific-note>In subclass <class-ref scheme="cpc">C10L</class-ref> it is desirable to give indexing codes for information about components of solid, liquid and gaseous fuels or firelighters, their additives and constituents and their preparation and use. The indexing codes are taken from <class-ref scheme="cpc">C10L2200/00</class-ref> - <class-ref scheme="cpc">C10L2290/60</class-ref>.</CPC-specific-note></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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C10M.xml" sort-key="C10M" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C10M</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>LUBRICATING COMPOSITIONS </text><reference><text>well drilling compositions <class-ref scheme="cpc">C09K8/02</class-ref></text></reference></title-part><title-part><text>USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION </text><reference><CPC-specific-text><text>lubricants for medical use <class-ref scheme="cpc">A61</class-ref></text></CPC-specific-text><text> ; mould release, i.e. separating, agents for metals <class-ref scheme="cpc">B22C3/00</class-ref>, for plastics or substances in a plastic state, in general <class-ref scheme="cpc">B29C33/56</class-ref>, for glass <class-ref scheme="cpc">C03B40/02</class-ref>; use of particular substances in particular apparatus or conditions, <u>see</u> <class-ref scheme="cpc">F16N</class-ref> or the relevant groups for the application, e.g. <class-ref scheme="cpc">A21D8/08</class-ref>, <class-ref scheme="cpc">B21C9/00</class-ref>, <class-ref scheme="cpc">H01B3/18</class-ref>; immersion oils for microscopy <class-ref scheme="cpc">G02B21/33</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this subclass, the following terms are used with the meanings indicated: <subnote type="bullet"><note-paragraph>"lubricant" or "lubricating composition" includes cutting oils, hydraulic fluids, metal drawing compositions, flushing oils, slushing oils, or the like;</note-paragraph><note-paragraph>"aliphatic" includes "cycloaliphatic".</note-paragraph></subnote></note-paragraph><note-paragraph>In respect of the classification of mixtures, attention is drawn to Note (4) (e) below.</note-paragraph><note-paragraph>In this subclass, in the absence of an indication to the contrary, classification is made in the last appropriate place. Thus, a compound having an aromatic ring is classified as aromatic regardless of whether the substituent(s) of interest are on the ring or on an aliphatic part of the molecule.</note-paragraph><note-paragraph> In this subclass: <subnote type="alpha"><note-paragraph>metal or ammonium salts of a compound are classified as that compound;</note-paragraph><note-paragraph>salts or adducts formed between two or more organic compounds are classified according to all compounds forming the salt or adduct, if of interest;</note-paragraph><note-paragraph>a specified compound, e.g. phenols, acids, substituted by a macromolecular hydrocarbon radical is classified as that compound;</note-paragraph><note-paragraph> base-materials or thickeners or additives consisting of a mixture for which no specific main group is provided are classified in the most indented group covering all essential constituents of the mixture, for example, <subnote type="bullet"><note-paragraph>a base-material mixture of ketone and amide - group <class-ref scheme="cpc">C10M105/00</class-ref></note-paragraph><note-paragraph>a base-material mixture of ketone and ether - group <class-ref scheme="cpc">C10M105/08</class-ref></note-paragraph><note-paragraph>an additive mixture of long and short chain esters - group <class-ref scheme="cpc">C10M129/00</class-ref></note-paragraph><note-paragraph>an additive mixture of short chain aliphatic and aromatic carboxylic acids- group <class-ref scheme="cpc">C10M129/26</class-ref>;</note-paragraph></subnote></note-paragraph><note-paragraph>except for aqueous lubricating compositions containing more than 10% water, which are classified separately, classification is made according to the type of ingredient or mixture of types of ingredient (base-material, thickener or additive) which characterises the composition. Attention is drawn to the fact that a mixture of essential ingredients characterised by only one of its components, rather than by the mixture as a whole, is not classified as a mixture, e.g. a lubricating composition consisting of: <subnote type="bullet"><note-paragraph>a known base-material and a new additive is classified only in the "additive" part of the classification scheme;</note-paragraph><note-paragraph>a known base-material with both a thickener and a further additive as essential ingredients, which may be individually classified as a mixture of thickener and additive;</note-paragraph><note-paragraph>known base-material with a combination of additives as essential ingredients, which may be individually known or not, is classified in the appropriate place for the additive mixture.</note-paragraph></subnote></note-paragraph></subnote></note-paragraph><note-paragraph> In this subclass, it is desirable to add the indexing codes of: <subnote type="bullet"><note-paragraph>subclass <class-ref scheme="cpc">C10M</class-ref>, relating to the chemical constitution of individual compounds of the lubricating compositions; </note-paragraph><note-paragraph>subclass <class-ref scheme="cpc">C10N</class-ref>, relating to physico-chemical aspects of the lubricating compositions or of their compounding ingredients. </note-paragraph></subnote> For more information about the way of allocating these indexing codes, see the notes after the titles of the respective subclasses. </note-paragraph><note-paragraph> In this subclass, until May 2003, indexing codes were added, relating to: <subnote type="bullet"><note-paragraph>each of the essential ingredients of a mixture. However, in the case of an aqueous lubricating composition covered by group <class-ref scheme="cpc">C10M173/00</class-ref>, the presence of water is not indicated; </note-paragraph><note-paragraph>each of the essential reactants of a reaction product covered by groups <class-ref scheme="cpc">C10M109/02</class-ref>, <class-ref scheme="cpc">C10M121/04</class-ref> or <class-ref scheme="cpc">C10M159/12</class-ref></note-paragraph></subnote> The indexing codes, which are chosen from groups <class-ref scheme="cpc">C10M101/00</class-ref> - <class-ref scheme="cpc">C10M109/00</class-ref>, <class-ref scheme="cpc">C10M113/00</class-ref> - <class-ref scheme="cpc">C10M121/00</class-ref>, <class-ref scheme="cpc">C10M125/00</class-ref> - <class-ref scheme="cpc">C10M139/00</class-ref>, <class-ref scheme="cpc">C10M143/00</class-ref> - <class-ref scheme="cpc">C10M155/00</class-ref>, <class-ref scheme="cpc">C10M159/00</class-ref> or <class-ref scheme="cpc">C10M163/00</class-ref> - <class-ref scheme="cpc">C10M167/00</class-ref>, were given using Combination Sets. </note-paragraph><note-paragraph> In this subclass, until May 2003, the indexing codes of subclass <class-ref scheme="cpc">C10N</class-ref> were added. <br/> Documents classified with Combination Sets according to internal Notes 2), 3) and 5) are in the state of being reclassified according to Note 1). </note-paragraph></note><note type="warning"><note-paragraph warning-type="reclass-source"> The following groups are no longer used for the classification of new documents from January, 1978: <br/> - <class-ref scheme="cpc">C10M1/00</class-ref> - <class-ref scheme="cpc">C10M7/00</class-ref> <br/> The backlog of these groups is continuously being reclassified in groups <class-ref scheme="cpc">C10M101/00</class-ref> - <class-ref scheme="cpc">C10M177/00</class-ref>. </note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C10N.xml" sort-key="C10N" definition-exists="false" date-revised="2019-01-01" status="published"><classification-symbol>C10N</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>INDEXING SCHEME ASSOCIATED WITH SUBCLASS <class-ref scheme="cpc">C10M</class-ref> RELATING TO LUBRICATING COMPOSITIONS</text></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph>This subclass constitutes an indexing scheme associated with subclass <class-ref scheme="cpc">C10M</class-ref>, relating to: <subnote type="bullet"><note-paragraph> metals and the metal of a compound in group <class-ref scheme="cpc">C10N2010/00</class-ref>; </note-paragraph><note-paragraph> the properties of the lubricant composition or constituents thereof in groups <class-ref scheme="cpc">C10N2020/00</class-ref>, <class-ref scheme="cpc">C10N2030/00</class-ref>; </note-paragraph><note-paragraph> the use or application of the lubricant composition in group <class-ref scheme="cpc">C10N2040/00</class-ref>; </note-paragraph><note-paragraph> the form in which the lubricant composition is applied in group <class-ref scheme="cpc">C10N2050/00</class-ref>; </note-paragraph><note-paragraph>chemical modification by after-treatment of lubricant constituents in group <class-ref scheme="cpc">C10N2060/00</class-ref>; </note-paragraph><note-paragraph>special methods of preparation in group <class-ref scheme="cpc">C10N2070/00</class-ref>; </note-paragraph><note-paragraph>special pretreatment of the material to be lubricated in group <class-ref scheme="cpc">C10N2080/00</class-ref>. </note-paragraph></subnote></note-paragraph><note-paragraph> In this subclass, the following terms or expressions are used with the meanings indicated: <subnote type="bullet"><note-paragraph>"lubricant" or "lubricating composition" includes cutting oils, hydraulic fluids, metal drawing compositions, flushing oils, slushing oils, or the like; </note-paragraph><note-paragraph>"aliphatic" includes "cycloaliphatic". </note-paragraph></subnote></note-paragraph></note></notes-and-warnings></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C11" date-revised="2019-05-01" status="published"><classification-symbol>C11</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES</text></title-part><title-part><text>FATTY ACIDS THEREFROM</text></title-part><title-part><text>DETERGENTS</text></title-part><title-part><text>CANDLES</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C11B.xml" sort-key="C11B" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C11B</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES</text></title-part><title-part><text>ESSENTIAL OILS</text></title-part><title-part><text>PERFUMES </text><reference><text>drying-oils <class-ref scheme="cpc">C09F</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, boron and silicon are considered as metals</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C11C.xml" sort-key="C11C" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C11C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>FATTY ACIDS FROM FATS, OILS OR WAXES</text></title-part><title-part><text>CANDLES</text></title-part><title-part><text>FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM</text></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C11D.xml" sort-key="C11D" definition-exists="true" date-revised="2022-08-01" status="published"><classification-symbol>C11D</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>DETERGENT COMPOSITIONS</text></title-part><title-part><text>USE OF SINGLE SUBSTANCES AS DETERGENTS</text></title-part><title-part><text>SOAP OR SOAP-MAKING</text></title-part><title-part><text>RESIN SOAPS</text></title-part><title-part><text>RECOVERY OF GLYCEROL</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>When classifying in the mixture groups of this subclass, any individual ingredient of a composition which is not identified by such classification, and which itself is determined to be novel and non-obvious, must also be classified in groups <class-ref scheme="cpc">C11D1/00</class-ref> - <class-ref scheme="cpc">C11D9/00</class-ref>. The individual ingredient can be either a single substance or a composition in itself. </note-paragraph><note-paragraph>Any ingredient of a composition which is not identified by the classification according to Note (1) above, and which is considered to represent information of interest for search, may also be classified in groups <class-ref scheme="cpc">C11D1/00</class-ref> - <class-ref scheme="cpc">C11D9/00</class-ref>. This can, for example, be the case when it is considered of interest to enable searching of compositions using a combination of classification symbols. Such non-obligatory classification should be given as "additional information".</note-paragraph><note-paragraph><CPC-specific-note>Documents classified in groups <class-ref scheme="cpc">C11D1/37</class-ref>, <class-ref scheme="cpc">C11D1/645</class-ref> - <class-ref scheme="cpc">C11D1/655</class-ref>, <class-ref scheme="cpc">C11D1/825</class-ref> - <class-ref scheme="cpc">C11D1/86</class-ref>, <class-ref scheme="cpc">C11D1/94</class-ref> - <class-ref scheme="cpc">C11D1/945</class-ref> and <class-ref scheme="cpc">C11D10/00</class-ref> - <class-ref scheme="cpc">C11D10/047</class-ref>, are indexed using codes chosen from <class-ref scheme="cpc">C11D1/00</class-ref> - <class-ref scheme="cpc">C11D1/92</class-ref> to provide information on the individual ingredients on the compositions.</CPC-specific-note></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C11D1/68</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/2003</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D1/70</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/2003</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D3/44</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/43</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D3/46</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/2079</class-ref>, <class-ref scheme="cpc">C11D9/48</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D3/60</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D7/18</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/39</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D7/38</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/39</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D7/42</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/386</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D7/52</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D7/50</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D7/54</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/395</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D7/56</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/395</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D7/60</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D7/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D9/50</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/48</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D9/60</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D9/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D10/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D3/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C11D10/06</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C11D9/00</class-ref></entry></row></table></note-paragraph></note></notes-and-warnings></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C12" date-revised="2017-08-01" status="published"><classification-symbol>C12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>BIOCHEMISTRY</text></title-part><title-part><text>BEER</text></title-part><title-part><text>SPIRITS</text></title-part><title-part><text>WINE</text></title-part><title-part><text>VINEGAR</text></title-part><title-part><text>MICROBIOLOGY</text></title-part><title-part><text>ENZYMOLOGY</text></title-part><title-part><text>MUTATION OR GENETIC ENGINEERING</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In subclasses <class-ref scheme="cpc">C12M</class-ref> - <class-ref scheme="cpc">C12Q</class-ref> and within each of these subclasses, in the absence of an indication to the contrary, classification is made in the last appropriate place.</note-paragraph><note-paragraph>In this class, viruses, undifferentiated human, animal or plant cells, protozoa, tissues, and unicellular algae are considered as microorganisms.</note-paragraph><note-paragraph>In this class, unless specifically provided for, undifferentiated human, animal or plant cells, protozoa, tissues and unicellular algae are classified together with microorganisms. Sub-cellular parts, unless specifically provided for, are classified with the whole cell.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12C.xml" sort-key="C12C" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C12C</classification-symbol><class-title date-revised="2020-02-01"><title-part><text>BEER</text></title-part><title-part><text>PREPARATION OF BEER BY FERMENTATION </text><reference><text>ageing or ripening by storing <class-ref scheme="cpc">C12H1/22</class-ref>; methods for reducing the alcohol content after fermentation <class-ref scheme="cpc">C12H3/00</class-ref>; methods for increasing the alcohol content after fermentation <class-ref scheme="cpc">C12H6/00</class-ref>; venting devices for casks, barrels or the like <class-ref scheme="cpc">C12L9/00</class-ref></text></reference></title-part><title-part><text>PREPARATION OF MALT FOR MAKING BEER</text></title-part><title-part><text>PREPARATION OF HOPS FOR MAKING BEER</text></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12F.xml" sort-key="C12F" definition-exists="true" date-revised="2020-02-01" status="published"><classification-symbol>C12F</classification-symbol><class-title date-revised="2020-02-01"><title-part><text>RECOVERY OF BY-PRODUCTS OF FERMENTED SOLUTIONS </text><reference><text>removal of yeast from wine or sparkling wine <class-ref scheme="cpc">C12G1/08</class-ref></text></reference></title-part><title-part><text>DENATURED ALCOHOL</text></title-part><title-part><text>PREPARATION THEREOF</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12G.xml" sort-key="C12G" definition-exists="true" date-revised="2020-02-01" status="published"><classification-symbol>C12G</classification-symbol><class-title date-revised="2020-02-01"><title-part><text>WINE</text></title-part><title-part><text>PREPARATION THEREOF</text></title-part><title-part><text>ALCOHOLIC BEVERAGES </text><reference><text>beer <class-ref scheme="cpc">C12C</class-ref></text></reference></title-part><title-part><text>PREPARATION OF ALCOHOLIC BEVERAGES NOT PROVIDED FOR IN SUBCLASSES <class-ref scheme="cpc">C12C</class-ref> OR <class-ref scheme="cpc">C12H</class-ref></text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C12G1/022</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12G1/0203</class-ref> </entry></row><row><entry> <class-ref scheme="ipc">C12G1/024</class-ref> </entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12G1/0209</class-ref> </entry></row><row><entry> <class-ref scheme="ipc">C12G1/026</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12G1/02</class-ref></entry></row><row><entry> <class-ref scheme="ipc">C12G1/028</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12G1/0213</class-ref></entry></row><row><entry> <class-ref scheme="ipc">C12G1/032</class-ref> </entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12G1/0216</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12G1/036</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12G1/0206</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12G1/067</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12G1/06</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12G1/073</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12G1/06</class-ref>, <class-ref scheme="cpc">C12G1/064</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12G1/09</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12G1/08</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12G1/10</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12G1/00</class-ref>, <class-ref scheme="cpc">C12H1/10</class-ref>, <class-ref scheme="cpc">C12H1/18</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12G1/12</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12G1/00</class-ref></entry></row></table></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12H.xml" sort-key="C12H" definition-exists="true" date-revised="2019-02-01" status="published"><classification-symbol>C12H</classification-symbol><class-title date-revised="2019-02-01"><title-part><text>PASTEURISATION, STERILISATION, PRESERVATION, PURIFICATION, CLARIFICATION OR AGEING OF ALCOHOLIC BEVERAGES</text></title-part><title-part><text>METHODS FOR ALTERING THE ALCOHOL CONTENT OF FERMENTED SOLUTIONS OR ALCOHOLIC BEVERAGES </text><reference><text>simulation ageing by flavouring <class-ref scheme="cpc">C12G3/06</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> When classifying in this subclass, classification is also made in group <class-ref scheme="cpc">B01D15/08</class-ref> insofar as subject matter of general interest relating to chromatography is concerned. </note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C12H1/044</class-ref> - <class-ref scheme="ipc">C12H1/048</class-ref> </entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12H1/0408</class-ref></entry></row><row><entry> <class-ref scheme="ipc">C12H1/052</class-ref> </entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12H1/0416</class-ref> </entry></row><row><entry> <class-ref scheme="ipc">C12H1/056</class-ref> </entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12H1/0424</class-ref> </entry></row><row><entry> <class-ref scheme="ipc">C12H1/065</class-ref> </entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12H1/061</class-ref> </entry></row><row><entry> <class-ref scheme="ipc">C12H1/07</class-ref> – <class-ref scheme="ipc">C12H1/075</class-ref> </entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12H1/063</class-ref> </entry></row><row><entry> <class-ref scheme="ipc">C12H1/15</class-ref> </entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12H1/003</class-ref> </entry></row></table></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12J.xml" sort-key="C12J" definition-exists="false" date-revised="2020-02-01" status="published"><classification-symbol>C12J</classification-symbol><class-title date-revised="2020-02-01"><title-part><text>VINEGAR</text></title-part><title-part><text>PREPARATION OR PURIFICATION THEREOF</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12L.xml" sort-key="C12L" definition-exists="true" date-revised="2013-01-01" status="published"><classification-symbol>C12L</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PITCHING OR DEPITCHING MACHINES</text></title-part><title-part><text>CELLAR TOOLS </text><reference><text>cleaning of casks <class-ref scheme="cpc">B08B9/00</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12M.xml" sort-key="C12M" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C12M</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY</text></title-part><title-part><CPC-specific-text><text>APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass the term microorganism includes prokaryotic and eukaryotic cells. Viruses, human, animal or plant cells, protozoa, tissues and unicellular algae are considered microorganisms.</note-paragraph><note-paragraph>When classifying an apparatus according to its use in group <class-ref scheme="cpc">C12M21/00</class-ref>, classification should also be given in at least one of the groups <class-ref scheme="cpc">C12M23/00</class-ref>-<class-ref scheme="cpc">C12M99/00</class-ref>.</note-paragraph><note-paragraph>This subclass <u>covers</u> apparatus or devices for the fermentation or for growing microorganisms or animal tissues of both laboratory and industrial scale, i.e. bioreactors.</note-paragraph><note-paragraph>This subclass <u>covers</u> also apparatus or devices for the pre-treatment or after-treatment of the biomass or microorganisms to be cultured or that have been cultured.</note-paragraph><note-paragraph>This subclass <u>does not cover</u> the methods or processes taking place in the bioreactors that are not based on the use of the parts of the apparatus.</note-paragraph><note-paragraph>This subclass <u>does not cover</u>: <subnote type="bullet"><note-paragraph>apparatus for culturing plant tissue, which are covered by <class-ref scheme="cpc">A01H4/001</class-ref>;</note-paragraph><note-paragraph>apparatus for preservation of living parts of bodies of humans or animals, which are covered by <class-ref scheme="cpc">A01N1/0242</class-ref>;</note-paragraph><note-paragraph> apparatus or devices for testing sterility conditions not linked to a bioreactor or fermenter growing biomass, which are covered by <class-ref scheme="cpc">A61L2/00</class-ref>, <class-ref scheme="cpc">G01N31/226</class-ref>;</note-paragraph><note-paragraph>apparatus for biological treatment of water, waste water, sewage or sludge, which are covered by <class-ref scheme="cpc">C02F3/00</class-ref>, <class-ref scheme="cpc">C02F11/00</class-ref>; </note-paragraph><note-paragraph>apparatus for brewing of beer, which are covered by <class-ref scheme="cpc">C12C</class-ref>;</note-paragraph><note-paragraph>apparatus for production of wine or vinegar, which are covered by <class-ref scheme="cpc">C12G</class-ref>, <class-ref scheme="cpc">C12J1/10</class-ref>;</note-paragraph><note-paragraph>apparatus or devices for DNA and RNA technology, which are covered by <class-ref scheme="cpc">B01L7/52</class-ref>, <class-ref scheme="cpc">B01J19/0046</class-ref>, <class-ref scheme="cpc">C12N15/1003</class-ref>;</note-paragraph><note-paragraph>fermentation processes, which are covered by <class-ref scheme="cpc">C12P</class-ref>;</note-paragraph><note-paragraph>apparatus for bioleaching of ores, which are covered by <class-ref scheme="cpc">C22B3/18</class-ref>;</note-paragraph><note-paragraph>removing cellulose from cellulosic substances, which is covered by <class-ref scheme="cpc">D21C</class-ref>;</note-paragraph><note-paragraph>apparatus or devices for sampling, detection, investigation or analysis of microorganisms or biosensors, which are covered by <class-ref scheme="cpc">G01N33/48</class-ref>;</note-paragraph><note-paragraph>apparatus for automatic analysis not linked to a bioreactor or fermenter growing biomass, which are covered by <class-ref scheme="cpc">G01N35/00</class-ref>;</note-paragraph><note-paragraph>testing or evaluating the effect of a chemical or biological compound involving human or animal cells, which are covered by <class-ref scheme="cpc">G01N33/5005</class-ref>;</note-paragraph><note-paragraph>apparatus for immunological test processes, which are covered by <class-ref scheme="cpc">G01N33/5302</class-ref>.</note-paragraph></subnote></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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12N.xml" sort-key="C12N" definition-exists="true" date-revised="2022-05-01" status="published"><classification-symbol>C12N</classification-symbol><class-title date-revised="2020-02-01"><title-part><text>MICROORGANISMS OR ENZYMES</text></title-part><title-part><text>COMPOSITIONS THEREOF</text></title-part><title-part><text>PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS</text></title-part><title-part><text>MUTATION OR GENETIC ENGINEERING</text></title-part><title-part><text>CULTURE MEDIA </text><reference><text>microbiological testing media <class-ref scheme="cpc">C12Q1/00</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 Notes (1) to (3) following the title of class <class-ref scheme="cpc">C12</class-ref>.</note-paragraph><note-paragraph>Biocidal, pest repellant, pest attractant or plant growth regulatory activity of compounds or preparations is further classified in subclass <class-ref scheme="cpc">A01P</class-ref>.</note-paragraph><note-paragraph>Therapeutic activity of single-cell proteins or enzymes is further classified in subclass <class-ref scheme="cpc">A61P</class-ref>.</note-paragraph><note-paragraph>When classifying in this subclass, classification is also made in group <class-ref scheme="cpc">B01D15/08</class-ref> insofar as subject matter of general interest relating to chromatography is concerned.</note-paragraph><note-paragraph>In this subclass, it is desirable to add the indexing codes of subclass <class-ref scheme="cpc">C12R</class-ref>.</note-paragraph><note-paragraph><CPC-specific-note>Documents relating to the use of vectors or hosts for the preparation of specific peptides, e.g. enzymes, are classified in subclass <class-ref scheme="cpc">C07K</class-ref> or in group <class-ref scheme="cpc">C12N9/00</class-ref> according to the peptides, with the appropriate indexing codes.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>In this subclass, combination sets [C-Sets] are used. The detailed information about the C-Sets construction and the associated syntax rules is present in the definitions of <class-ref scheme="cpc">C12N</class-ref>.</CPC-specific-note></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C12N1/11</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N15/79</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N1/13</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N15/79</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N1/15</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N15/80</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N1/19</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N15/81</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N1/21</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N15/74</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N5/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/0006</class-ref>, <class-ref scheme="cpc">C12N5/04</class-ref> - <class-ref scheme="cpc">C12N5/166</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N5/07</class-ref> - <class-ref scheme="ipc">C12N5/095</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/06</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N5/18</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/16</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N5/20</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/163</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N5/22</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/16</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N5/24</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/163</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N5/26</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/166</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N5/28</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/166</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/53</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/0004</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N7/01</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N7/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N9/02</class-ref>-<class-ref scheme="ipc">C12N9/08</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/0004</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N9/26</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/2408</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N9/28</class-ref>-<class-ref scheme="ipc">C12N9/30</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/2414</class-ref> - <class-ref scheme="cpc">C12N9/242</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/32</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/2422</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/34</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/2428</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/36</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/2462</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/38</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/2468</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N9/40</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/2465</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/42</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/2434</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N9/44</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/2451</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N9/46</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/2454</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/56</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/54</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/66</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/6448</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/68</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/6435</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/70</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/3153</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N9/72</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/6462</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/74</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/6429</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N9/76</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N9/6427</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C12N15/05</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/14</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/06</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/16</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/07</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/16</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/08</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N5/166</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/12</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/435</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/13</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K16/00</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/14</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/765</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/15</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/81</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/16</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/575</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/17</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/62</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/18</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/61</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/19</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/52</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/20</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/555</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/21</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/56</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/22</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/565</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/23</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/57</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/24</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/54</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/25</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/545</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/26</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/55</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/27</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/53</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/28</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/525</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/29</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/415</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/30</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/44</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/31</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/195</class-ref>, <class-ref scheme="cpc">C07K14/005</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/32</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/325</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/33</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/005</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/34</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/01</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/35</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/015</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/36</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/02</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/37</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/025</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/38</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/03</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/39</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/065</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/40</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/08</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/41</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/085</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/42</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/09</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/43</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/105</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/44</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/11</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/45</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/115</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/46</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/14</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/47</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/145</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/48</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/15</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/49</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/155</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/50</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/165</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/51</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K14/02</class-ref>, <class-ref scheme="cpc">C07K14/10</class-ref>, <class-ref scheme="cpc">C07K14/18</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/53</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/0004</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/54</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/10</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/55</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/14</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/56</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/24</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/57</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/48</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/58</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/6456</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/59</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/6483</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/60</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/88</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/61</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N9/90</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/83</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N15/82</class-ref></entry></row><row><entry><class-ref scheme="ipc">C12N15/84</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C12N15/82</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12P.xml" sort-key="C12P" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C12P</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE </text><CPC-specific-text><reference><text>brewing of beer <class-ref scheme="cpc">C12C</class-ref>; producing vinegar <class-ref scheme="cpc">C12J</class-ref>; producing specific peptides or proteins <class-ref scheme="cpc">C07K</class-ref>; producing enzymes <class-ref scheme="cpc">C12N9/00</class-ref>; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification <class-ref scheme="cpc">C12N15/00</class-ref>; measuring or testing processes involving enzymes or microorganisms <class-ref scheme="cpc">C12Q</class-ref>; measuring or testing processes involving nucleic acid amplification reactions <class-ref scheme="cpc">C12Q1/6844</class-ref>; fermentation processes to form a food composition, <class-ref scheme="cpc">A21</class-ref> or <class-ref scheme="cpc">A23</class-ref>; compounds in general, <u>see</u> the relevant compound class, e.g. <class-ref scheme="cpc">C01</class-ref>, <class-ref scheme="cpc">C07</class-ref></text></reference></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers</u> the production of compounds or compositions by biochemical transformation of matter performed by using enzymes or microorganisms, wherein microorganisms are defined as any single-celled organisms, including bacteria, fungi, yeast or microalgae, or plant or mammalian cells in the form of cell cultures.</note-paragraph><note-paragraph>In this subclass, documents are primarily classified according to the compounds produced. In addition, if appropriate, classification according to the method or biocatalyst used to produce the compound is made.</note-paragraph><note-paragraph> Classification in groups <class-ref scheme="cpc">C12P19/14</class-ref> - <class-ref scheme="cpc">C12P19/24</class-ref>, <class-ref scheme="cpc">C12P39/00</class-ref>, <class-ref scheme="cpc">C12P41/00</class-ref> - <class-ref scheme="cpc">C12P41/009</class-ref> should only be made together with the corresponding product groups </note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry> - <class-ref scheme="ipc">C12P21/04</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K7/50</class-ref></entry></row><row><entry> - <class-ref scheme="ipc">C12P21/08</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C07K16/00</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12Q.xml" sort-key="C12Q" definition-exists="true" date-revised="2022-05-01" status="published"><classification-symbol>C12Q</classification-symbol><class-title date-revised="2018-05-01"> <title-part><text>MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS </text><reference><text>immunoassay <class-ref scheme="cpc">G01N33/53</class-ref></text></reference></title-part><title-part><text>COMPOSITIONS OR TEST PAPERS THEREFOR</text></title-part><title-part><text>PROCESSES OF PREPARING SUCH COMPOSITIONS</text></title-part><title-part><text>CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> This subclass <u>does not cover</u> the observation of the progress or of the result of processes specified in this subclass by any of the methods specified in groups <class-ref scheme="cpc">G01N3/00</class-ref> - <class-ref scheme="cpc">G01N29/00</class-ref>, which is covered by subclass <class-ref scheme="cpc">G01N</class-ref>. </note-paragraph><note-paragraph> In this subclass, the following expression is used with the meaning indicated: <subnote><note-paragraph>"involving", when used in relation to a substance, includes the testing for the substance as well as employing the substance as a determinant or reactant in a test for a different substance.</note-paragraph></subnote></note-paragraph><note-paragraph>Attention is drawn to Notes (1) to (3) following the title of class <class-ref scheme="cpc">C12</class-ref>.</note-paragraph><note-paragraph>In this subclass, test media are classified in the appropriate group for the relevant test process.</note-paragraph><note-paragraph> In this subclass, it is desirable to add the indexing codes of subclass <class-ref scheme="cpc">C12R</class-ref>.</note-paragraph><note-paragraph> <CPC-specific-note>Documents describing the use of an electrode for analysis of a specific analyte are classified in <class-ref scheme="cpc">C12Q1/001</class-ref> or subgroups and not according to the last place rule.</CPC-specific-note></note-paragraph><note-paragraph> <CPC-specific-note>Documents relating to new peptides, e.g. enzymes, or new DNA or its corresponding mRNA, encoding for the peptides, and their use in measuring or testing processes are classified in subclass <class-ref scheme="cpc">C07K</class-ref> or in group <class-ref scheme="cpc">C12N9/00</class-ref> according to the peptides, with the appropriate indexing codes relating to their use in diagnostics. However, where the new nucleic acids are principally used in diagnostic processes, e.g. PCR, hybridisation reactions, the documents are also classified in group <class-ref scheme="cpc">C12Q1/68</class-ref>.</CPC-specific-note> </note-paragraph><note-paragraph> <CPC-specific-note>In groups <class-ref scheme="cpc">C12Q1/6876</class-ref> - <class-ref scheme="cpc">C12Q1/6895</class-ref> and <class-ref scheme="cpc">C12Q1/701</class-ref> - <class-ref scheme="cpc">C12Q1/708</class-ref> it is compulsory to add the indexing codes <class-ref scheme="cpc">C12Q2600/00</class-ref> - <class-ref scheme="cpc">C12Q2600/178</class-ref> which reflect the use of the product in combination with the virus groups only if the document relates to products.</CPC-specific-note> </note-paragraph><note-paragraph><CPC-specific-note>In this subclass, combination sets [C-Sets] are used. The detailed information about the C-Sets construction and the associated syntax rules is present in the definitions of <class-ref scheme="cpc">C12Q</class-ref>.</CPC-specific-note></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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12R.xml" sort-key="C12R" definition-exists="true" date-revised="2021-05-01" status="published"><classification-symbol>C12R</classification-symbol><class-title date-revised="2021-05-01"><title-part><text>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES <class-ref scheme="cpc">C12C</class-ref> - <class-ref scheme="cpc">C12Q</class-ref>, RELATING TO MICROORGANISMS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"> <note type="note"><note-paragraph>The basis for the bacteria terminology is "Bergey's Manual of Determinative Bacteriology", Eighth Edition, 19/75.</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used"> The following IPC indexing groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C12R1/92</class-ref> - <class-ref scheme="ipc">C12R1/94</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C12N2710/00</class-ref> - <class-ref scheme="cpc">C12N2795/18188</class-ref></entry></row></table></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C12Y.xml" sort-key="C12Y" definition-exists="true" date-revised="2013-01-01" status="published"><classification-symbol>C12Y</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>ENZYMES</text></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph>This subclass <u>covers</u> all enzymes.</note-paragraph><note-paragraph>In this subclass, each enzyme is classified according to their EC number of the "Enzyme Nomenclature" (as valid on 1 January 2012) recommended by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology. The EC number appears in the subgroups in parenthesis and is reflected in the classification symbol: the EC number with the notation a.bb.cc.ddd is rendered into a CPC symbol <class-ref scheme="cpc">C12Y</class-ref> ABB/CCDDD (with no trailing zeroes at the end) where: <subnote type="bullet"><note-paragraph>EC a.bb.cc.ddd: a ranges from 1 – 6; CPC symbol: A = 1 – 6</note-paragraph><note-paragraph>EC a.bb.cc.ddd: b ranges from 1 – 99 (*); CPC symbol: B = 01 – 99</note-paragraph><note-paragraph>EC a.bb.cc.ddd: c ranges from 1 – 99 (*); CPC symbol: C = 01 – 99</note-paragraph><note-paragraph>EC a.bb.cc.ddd: d ranges from 1 – 400 (*); CPC symbol: D = 001 – 400</note-paragraph><note-paragraph>(*) not all numbers are used</note-paragraph></subnote> Examples: <subnote type="bullet"><note-paragraph>Alcohol dehydrogenase: EC 1.1.1.1. is classified in <class-ref scheme="cpc">C12Y101/01001</class-ref></note-paragraph><note-paragraph>Togavirin: EC 3.4.21.90 is classified in <class-ref scheme="cpc">C12Y304/2109</class-ref></note-paragraph><note-paragraph>Hepsin: EC 3.4.21.106 is classified in <class-ref scheme="cpc">C12Y304/21106</class-ref></note-paragraph><note-paragraph>Cobaltochelatase: EC 6.6.1.2 is classified in <class-ref scheme="cpc">C12Y606/01002</class-ref></note-paragraph></subnote></note-paragraph><note-paragraph>This subclass is for discretionary supplementary classification of subject matter already classified as such in other classification places, e.g.: <subnote type="bullet"><note-paragraph><class-ref scheme="cpc">A01N1/00</class-ref>: Compositions containing enzymes and use of the compositions and compounds for preservation of bodies of humans or animals or parts thereof</note-paragraph><note-paragraph><class-ref scheme="cpc">A01N3/00</class-ref>: Compositions containing enzymes and use of the compositions and compounds for preservation of plants or parts thereof</note-paragraph><note-paragraph><class-ref scheme="cpc">A01N63/00</class-ref>: Biocides, pest repellents or attractants or plant growth regulators containing enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">A21D10/00</class-ref>, <class-ref scheme="cpc">A21D13/00</class-ref> : Bakery products which may contain enzymes </note-paragraph><note-paragraph><class-ref scheme="cpc">A23</class-ref>: Foods or foodstuffs containing enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">A61K</class-ref>: Preparations for medical dental or toilet purposes containing enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">A61K31/7088</class-ref>: Medical preparations containing nucleic acids encoding enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">A61K48/00</class-ref>: Medical preparations containing genetic material encoding enzymes which is inserted into cells of the living body to treat genetic diseases; Gene therapy</note-paragraph><note-paragraph><class-ref scheme="cpc">A61L12/082</class-ref>: Methods or apparatus for disinfecting or sterilising contact lenses in combination with enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">A61L15/38</class-ref>: Bandages, dressings or absorbent pads for physiological fluids containing enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">A61L27/3683</class-ref>: Material for prostheses subjected to enzyme treatment prior to implantation</note-paragraph><note-paragraph><class-ref scheme="cpc">C07K14/81</class-ref>: Protease inhibitors</note-paragraph><note-paragraph><class-ref scheme="cpc">C07K16/40</class-ref>: Antibodies against enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">C11D3/386</class-ref>: Detergent compositions containing enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">C12C1/00</class-ref>: Preparation of malt</note-paragraph><note-paragraph><class-ref scheme="cpc">C12M</class-ref>: Apparatus for enzymology</note-paragraph><note-paragraph><class-ref scheme="cpc">C12N9/00</class-ref>: Enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">C12N11/00</class-ref>: Carrier-bound or immobilised enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">C12N13/00</class-ref>: Treatment of enzymes with electrical or wave energy</note-paragraph><note-paragraph><class-ref scheme="cpc">C12N15/00</class-ref>: Nucleic acids encoding (part of) enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">C12N15/113</class-ref>, <class-ref scheme="cpc">C12N15/8281</class-ref> Non-encoding nucleic acids modulating the expression of genes for enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">C12P</class-ref>: Preparation of compounds using enzymes</note-paragraph><note-paragraph><class-ref scheme="cpc">C12Q1/00</class-ref>: Measuring or testing processes involving enzymes; Compositions therefor; Processes of preparing such compositions</note-paragraph><note-paragraph><class-ref scheme="cpc">G01N33/573</class-ref>: Immunoassays for enzymes</note-paragraph></subnote></note-paragraph><note-paragraph>Specific classification rules for the allocation of <class-ref scheme="cpc">C12Y</class-ref> symbols together with any of the groups listed above, are specified within the relevant group, if available. </note-paragraph><note-paragraph>The classification symbols of this subclass are not listed first when assigned to patent documents.</note-paragraph></note></notes-and-warnings></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C13" date-revised="2019-05-01" status="published"><classification-symbol>C13</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>SUGAR INDUSTRY</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In class <class-ref scheme="cpc">C13</class-ref>, the following terms or expressions are used with the meanings indicated: <subnote type="bullet"><note-paragraph>"sugars" are a class of edible, water-soluble crystalline carbohydrates, having a characteristic sweet taste, including mono-, di- and oligosaccharides, e.g. sucrose, lactose and fructose. A more specific meaning of the term "sugar" is defined in the note of subclass <class-ref scheme="cpc">C13B</class-ref>. </note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C13B.xml" sort-key="C13B" definition-exists="true" date-revised="2013-01-01" status="published"><classification-symbol>C13B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PRODUCTION OF SUCROSE</text></title-part><title-part><text>APPARATUS SPECIALLY ADAPTED THEREFOR </text><reference><text>chemically synthesised sugars or sugar derivatives <class-ref scheme="cpc">C07H</class-ref>; fermentation or enzyme-using processes for preparing compounds containing saccharide radicals <class-ref scheme="cpc">C12P19/00</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, the following terms or expressions are used with the meanings indicated : <subnote type="bullet"><note-paragraph>"sugar" is used in its non-scientific meaning and refers to sucrose, also called "table sugar" or saccharose", a white crystalline disaccharide;</note-paragraph><note-paragraph>"sugar juices" are solutions of sugar, essentially comprising sucrose, which are derived from different plants, e.g. beet, cane or maple;</note-paragraph><note-paragraph>"syrups" are highly concentrated sugar juices.</note-paragraph></subnote></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C13K.xml" sort-key="C13K" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C13K</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES </text><reference><text>chemically synthesised sugars or sugar derivatives <class-ref scheme="cpc">C07H</class-ref>; polysaccharides, e.g. starch, derivatives thereof <class-ref scheme="cpc">C08B</class-ref>; malt <class-ref scheme="cpc">C12C</class-ref>; fermentation or enzyme-using processes for preparing compounds containing saccharide radicals <class-ref scheme="cpc">C12P19/00</class-ref>; production of sucrose <class-ref scheme="cpc">C13B</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C14" date-revised="2013-01-01" status="published"><classification-symbol>C14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>SKINS</text></title-part><title-part><text>HIDES</text></title-part><title-part><text>PELTS</text></title-part><title-part><text>LEATHER</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C14B.xml" sort-key="C14B" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C14B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL</text></title-part><title-part><text>PELT-SHEARING MACHINES</text></title-part><title-part><text>INTESTINE-SPLITTING MACHINES </text><reference><text>making leather substitutes <class-ref scheme="cpc">B29</class-ref>, <class-ref scheme="cpc">D06N</class-ref>; making articles from leather <class-ref scheme="cpc">B68F</class-ref>; mechanical cleaning of hides or the like <class-ref scheme="cpc">D06G</class-ref>; artificial leather <class-ref scheme="cpc">D06N</class-ref></text></reference></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C14C.xml" sort-key="C14C" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C14C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING</text></title-part><title-part><text>APPARATUS THEREFOR</text></title-part><title-part><text>COMPOSITIONS FOR TANNING </text><reference><text>bleaching of leather or furs <class-ref scheme="cpc">D06L</class-ref>; dyeing of leather or furs <class-ref scheme="cpc">D06P</class-ref></text></reference></title-part></class-title><notes-and-warnings><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></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="3" additional-only="false" sort-key="C21" date-revised="2013-01-01" status="published"><classification-symbol>C21</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>METALLURGY</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C21" date-revised="2013-01-01" status="published"><classification-symbol>C21</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>METALLURGY OF IRON</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C21B.xml" sort-key="C21B" definition-exists="true" date-revised="2019-01-01" status="published"><classification-symbol>C21B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MANUFACTURE OF IRON OR STEEL </text><reference><text>preliminary treatment of ferrous ores or scrap <class-ref scheme="cpc">C22B1/00</class-ref>; electric heating <class-ref scheme="cpc">H05B</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers</u>: <subnote type="bullet"><note-paragraph>the production of iron or steel from source materials, e.g. the production of pig-iron; </note-paragraph><note-paragraph>apparatus specially adapted therefor, e.g. blast furnaces or air heaters. </note-paragraph></subnote></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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C21C.xml" sort-key="C21C" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C21C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL</text></title-part><title-part><text>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS </text><reference><text>refining metals in general <class-ref scheme="cpc">C22B9/00</class-ref></text></reference></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C21D.xml" sort-key="C21D" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C21D</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</text></title-part><title-part><text>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS</text></title-part><title-part><text>MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING </text><reference><text>surface treatment of metallic material involving at least one process provided for in class <class-ref scheme="cpc">C23</class-ref> and at least one process covered by this subclass <class-ref scheme="cpc">C23F17/00</class-ref>; unidirectional solidification of eutectic materials or unidirectional demixing of eutectoid materials <class-ref scheme="cpc">C30B</class-ref></text></reference></title-part></class-title><notes-and-warnings><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></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C22" date-revised="2019-05-01" status="published"><classification-symbol>C22</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>METALLURGY</text></title-part><title-part><text>FERROUS OR NON-FERROUS ALLOYS</text></title-part><title-part><text>TREATMENT OF ALLOYS OR NON-FERROUS METALS</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C22B.xml" sort-key="C22B" definition-exists="true" date-revised="2021-05-01" status="published"><classification-symbol>C22B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PRODUCTION AND REFINING OF METALS </text><reference><text>electrolytic <class-ref scheme="cpc">C25</class-ref></text></reference></title-part><title-part><text>PRETREATMENT OF RAW MATERIALS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this subclass, groups for obtaining metals include obtaining the metals by non-metallurgical processes, and obtaining metal compounds by metallurgical processes, <CPC-specific-note>as far as specifically indicated in the relevant groups</CPC-specific-note> . Thus, for example, group <class-ref scheme="cpc">C22B11/00</class-ref> covers the production of silver by reduction of ammoniacal silver oxide in solution, and group <class-ref scheme="cpc">C22B17/00</class-ref> includes the production of cadmium oxide by a metallurgical process. Furthermore, although compounds of arsenic and antimony are classified in <class-ref scheme="cpc">C01G</class-ref>, production of the elements themselves is included in <class-ref scheme="cpc">C22B</class-ref>, as well as the production of their compounds by metallurgical processes. </note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C22B9/187</class-ref> - <class-ref scheme="ipc">C22B9/193</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C22B9/18</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22B9/21</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C22B9/20</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22B15/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C22B15/0032</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22B15/04</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C22B15/0036</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22B15/06</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C22B15/0041</class-ref>, <class-ref scheme="cpc">C22B15/0043</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22B15/14</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C22B15/006</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C22C.xml" sort-key="C22C" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C22C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>ALLOYS </text><reference><text>flints <class-ref scheme="cpc">C06C15/00</class-ref>; treatment of alloys <class-ref scheme="cpc">C21D</class-ref>, <class-ref scheme="cpc">C22F</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, the following terms or expressions are used with the meanings indicated: <subnote type="bullet"><note-paragraph>"alloys" includes also: <subnote type="alpha"><note-paragraph>metallic composite materials containing a substantial proportion of fibres or other somewhat larger particles; </note-paragraph><note-paragraph>ceramic compositions containing free metal bonded to carbides, diamond, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides, other than as macroscopic reinforcing agents; </note-paragraph></subnote></note-paragraph><note-paragraph>"based on" requires at least 50% by weight of the specified constituent or of the specified group of constituents.</note-paragraph></subnote></note-paragraph><note-paragraph>Groups <class-ref scheme="cpc">C22C43/00</class-ref> - <class-ref scheme="cpc">C22C49/00</class-ref> take precedence over groups <class-ref scheme="cpc">C22C1/00</class-ref> - <class-ref scheme="cpc">C22C38/00</class-ref>. <br/><CPC-specific-note>This Note corresponds to IPC Note (1) relating to <class-ref scheme="cpc">C22C1/00</class-ref> - <class-ref scheme="cpc">C22C38/00</class-ref>.</CPC-specific-note> </note-paragraph><note-paragraph>In groups <class-ref scheme="cpc">C22C37/00</class-ref> and <class-ref scheme="cpc">C22C38/00</class-ref>, the last place priority rule is applied, i.e. at each hierarchical level, in the absence of an indication to the contrary, an alloy is classified in the last appropriate place that provides for one of the alloying components. <CPC-specific-note>This Note corresponds to IPC Note (1) relating to <class-ref scheme="cpc">C22C37/00</class-ref> - <class-ref scheme="cpc">C22C38/00</class-ref>.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>In this subclass it is desirable to classify the individual aspects of combinations of processes or materials for powder metallurgy using Combination Sets with symbols chosen from groups <class-ref scheme="cpc">C22C1/00</class-ref> - <class-ref scheme="cpc">C22C43/00</class-ref> or from groups <class-ref scheme="cpc">B22F1/00</class-ref> - <class-ref scheme="cpc">B22F9/00</class-ref>.</CPC-specific-note> </note-paragraph><note-paragraph><CPC-specific-note>In this subclass the special database "ALLOYS" is used. This system includes patent documents classified in groups <class-ref scheme="cpc">C22C1/04</class-ref> and <class-ref scheme="cpc">C22C5/00</class-ref> - <class-ref scheme="cpc">C22C49/14</class-ref> and provides information on the composition of the alloys, their uses and characteristics.</CPC-specific-note></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C22C101/00</class-ref>, <class-ref scheme="ipc">C22C101/20</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/62227</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C101/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/62231</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C101/04</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/62236</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C101/06</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/62245</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C101/08</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/62272</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C101/10</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">D01F9/12</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C101/12</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/62277</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C101/14</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/62281</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C101/16</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/62286</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C101/18</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/62295</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C101/22</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C04B35/6229</class-ref></entry></row><row><entry><class-ref scheme="ipc">C22C111/00</class-ref>-<class-ref scheme="ipc">C22C111/02</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C22C47/00</class-ref>, <class-ref scheme="cpc">C22C49/00</class-ref> </entry></row><row><entry><class-ref scheme="ipc">C22C121/00</class-ref>-<class-ref scheme="ipc">C22C121/02</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C22C47/02</class-ref> - <class-ref scheme="cpc">C22C47/068</class-ref>, <class-ref scheme="cpc">C22C49/00</class-ref> </entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C22F.xml" sort-key="C22F" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>C22F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS </text><reference><text>surface treatment of metallic material involving at least one process provided for in class <class-ref scheme="cpc">C23</class-ref> and at least one process covered by this subclass, <class-ref scheme="cpc">C23F17/00</class-ref></text></reference></title-part></class-title><notes-and-warnings><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></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C23" date-revised="2019-05-01" status="published"><classification-symbol>C23</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>COATING METALLIC MATERIAL</text></title-part><title-part><text>COATING MATERIAL WITH METALLIC MATERIAL</text></title-part><title-part><text>CHEMICAL SURFACE TREATMENT</text></title-part><title-part><text>DIFFUSION TREATMENT OF METALLIC MATERIAL</text></title-part><title-part><text>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</text></title-part><title-part><text>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this class, the following expression is used with the meaning indicated:<subnote type="bullet"><note-paragraph> "metallic material" covers: <subnote type="alpha"><note-paragraph> metals; </note-paragraph><note-paragraph> alloys </note-paragraph></subnote></note-paragraph></subnote> </note-paragraph><note-paragraph> Attention is drawn to the Note following the title of subclass <class-ref scheme="cpc">C22C</class-ref>. <CPC-specific-note><subnote type="bullet"><note-paragraph> <class-ref scheme="cpc">C22C29/00</class-ref> concerns alloys containing at least 50 % by weight of one or more of borides, carbides, nitrides, oxides or silicides and binding metal; </note-paragraph><note-paragraph> <class-ref scheme="cpc">C22C32/00</class-ref> concerns non-ferrous alloys containing at least 5 % by weight but less than 50 % by weight of borides, carbides, nitrides, oxides or silicides of refractory metals, whether added as such or formed <u>in situ</u>. </note-paragraph></subnote></CPC-specific-note></note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C23C.xml" sort-key="C23C" definition-exists="true" date-revised="2019-08-01" status="published"><classification-symbol>C23C</classification-symbol><class-title date-revised="2018-01-01"><title-part><text>COATING METALLIC MATERIAL</text></title-part><title-part><text>COATING MATERIAL WITH METALLIC MATERIAL</text></title-part><title-part><text>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</text></title-part><title-part><text>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL </text><reference><text>making metal-coated products by extrusion <class-ref scheme="cpc">B21C23/22</class-ref>; covering with metal by connecting pre-existing layers to articles, <u>see</u> the relevant places, e.g. <class-ref scheme="cpc">B21D39/00</class-ref>, <class-ref scheme="cpc">B23K</class-ref>; metallising of glass <class-ref scheme="cpc">C03C</class-ref>; metallising mortars, concrete, artificial stone, ceramics or natural stone <class-ref scheme="cpc">C04B41/00</class-ref>; enamelling of, or applying a vitreous layer to, metals <class-ref scheme="cpc">C23D</class-ref>; treating metal surfaces or coating of metals by electrolysis or electrophoresis <class-ref scheme="cpc">C25D</class-ref>; single-crystal film growth <class-ref scheme="cpc">C30B</class-ref>; by metallising textiles <class-ref scheme="cpc">D06M11/83</class-ref>; decorating textiles by locally metallising <class-ref scheme="cpc">D06Q1/04</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, an operation is considered as pre-treatment or after-treatment when it is specially adapted for, but quite distinct from, the coating process concerned and constitutes an independent operation. If an operation results in the formation of a permanent sub- or upper layer, it is not considered as pre-treatment or after-treatment and is classified as a multi-coating process.</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C23C14/36</class-ref> - <class-ref scheme="ipc">C23C14/44</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C23C14/34</class-ref> - <class-ref scheme="cpc">C23C14/358</class-ref> </entry></row></table></note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C23D.xml" sort-key="C23D" definition-exists="true" date-revised="2023-02-01" status="published"><classification-symbol>C23D</classification-symbol><class-title date-revised="2023-02-01"><title-part><text>ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C23F.xml" sort-key="C23F" definition-exists="true" date-revised="2019-08-01" status="published"><classification-symbol>C23F</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE </text><reference><text>working metal by laser beams <class-ref scheme="cpc">B23K26/00</class-ref>; desurfacing by applying flames <class-ref scheme="cpc">B23K7/00</class-ref>; working of metal by electro-erosion <class-ref scheme="cpc">B23H</class-ref>; producing decorative effects by removing surface material, e.g. by engraving, by etching, <class-ref scheme="cpc">B44C1/22</class-ref>; electrolytic etching or polishing <class-ref scheme="cpc">C25F</class-ref></text></reference></title-part><title-part><text>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL</text></title-part><title-part><text>MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS <class-ref scheme="cpc">C23</class-ref> AND AT LEAST ONE PROCESS COVERED BY SUBCLASS <class-ref scheme="cpc">C21D</class-ref> OR <class-ref scheme="cpc">C22F</class-ref> OR CLASS <class-ref scheme="cpc">C25</class-ref></text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>protective layers or coating compositions or methods of applying them; these are classified in the appropriate places, e.g. <class-ref scheme="cpc">B05</class-ref>, <class-ref scheme="cpc">B44</class-ref>, <class-ref scheme="cpc">C09D</class-ref>, <class-ref scheme="cpc">C23C</class-ref>.</note-paragraph><note-paragraph>mechanical devices or constructional features of particular articles for inhibiting incrustation; these are classified in the appropriate places, e.g. in pipes or pipe fittings <class-ref scheme="cpc">F16L58/00</class-ref>.</note-paragraph><note-paragraph>articles characterised by being made of materials selected for their properties of resistance to corrosion or incrustation; these are classified in the appropriate places, e.g. turbine blades <class-ref scheme="cpc">F01D5/28</class-ref>.</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC group is not in the CPC scheme. The subject matter for this IPC group is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C23F1/24</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">C09K13/00</class-ref>, <class-ref scheme="cpc">H01L21/00</class-ref> </entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C23G.xml" sort-key="C23G" definition-exists="true" date-revised="2023-02-01" status="published"><classification-symbol>C23G</classification-symbol><class-title date-revised="2023-02-01"><title-part><text>CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C25" date-revised="2019-05-01" status="published"><classification-symbol>C25</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>ELECTROLYTIC OR ELECTROPHORETIC PROCESSES</text></title-part><title-part><text>APPARATUS THEREFOR</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>Electrolytic or electrophoretic processes or apparatus or operational features are classified: <subnote type="roman"><note-paragraph>in the groups for the compounds or articles produced, and</note-paragraph><note-paragraph>in the groups which cover the apparatus or operational features.</note-paragraph></subnote></note-paragraph><note-paragraph>The electrolytic or electrophoretic purification of materials is classified according to the nature of the liquid in the relevant places, e.g. <class-ref scheme="cpc">A01K63/00</class-ref>, <class-ref scheme="cpc">C02F1/46</class-ref>, <class-ref scheme="cpc">C25B15/08</class-ref>, <class-ref scheme="cpc">C25D21/16</class-ref>, <class-ref scheme="cpc">C25F7/02</class-ref>.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C25B.xml" sort-key="C25B" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>C25B</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS</text></title-part><title-part><text>APPARATUS THEREFOR </text><reference><text>anodic or cathodic protection <class-ref scheme="cpc">C23F13/00</class-ref>; single-crystal growth <class-ref scheme="cpc">C30B</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>Compounds of particular interest are also classified in the relevant classes, e.g. in <class-ref scheme="cpc">C01</class-ref>, <class-ref scheme="cpc">C07</class-ref>, <class-ref scheme="cpc">C08</class-ref>.</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C25C.xml" sort-key="C25C" definition-exists="true" date-revised="2020-05-01" status="published"><classification-symbol>C25C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS</text></title-part><title-part><text>APPARATUS THEREFOR</text></title-part></class-title><notes-and-warnings><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C25D.xml" sort-key="C25D" definition-exists="true" date-revised="2020-08-01" status="published"><classification-symbol>C25D</classification-symbol><class-title date-revised="2020-08-01"><title-part><text>PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS</text></title-part><title-part><text>ELECTROFORMING</text></title-part><title-part><text>APPARATUS THEREFOR</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C25D2/00</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">B23K28/006</class-ref></entry></row><row><entry><class-ref scheme="ipc">C25D5/24</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C25D5/34</class-ref></entry></row><row><entry><class-ref scheme="ipc">C25D5/26</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C25D5/36</class-ref></entry></row><row><entry><class-ref scheme="ipc">C25D5/28</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C25D5/38</class-ref></entry></row><row><entry><class-ref scheme="ipc">C25D5/30</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C25D5/42</class-ref>, <class-ref scheme="cpc">C25D5/44</class-ref></entry></row><row><entry><class-ref scheme="ipc">C25D5/32</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C25D5/46</class-ref></entry></row><row><entry><class-ref scheme="ipc">C25D19/00</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">C25D17/00</class-ref></entry></row></table></note-paragraph><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>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C25F.xml" sort-key="C25F" definition-exists="true" date-revised="2013-01-01" status="published"><classification-symbol>C25F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS</text></title-part><title-part><text>APPARATUS THEREFOR</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, in the absence of an indication to the contrary, classification is made in the last appropriate place.</note-paragraph></note></notes-and-warnings></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C30" date-revised="2019-05-01" status="published"><classification-symbol>C30</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>CRYSTAL GROWTH</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C30B.xml" sort-key="C30B" definition-exists="true" date-revised="2023-02-01" status="published"><classification-symbol>C30B</classification-symbol><class-title date-revised="2023-02-01"><title-part><text>SINGLE-CRYSTAL GROWTH </text><reference><text>by using ultra-high pressure, e.g. for the formation of diamonds, <class-ref scheme="cpc">B01J3/06</class-ref></text></reference></title-part><title-part><text>UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL</text></title-part><title-part><text>REFINING BY ZONE-MELTING OF MATERIAL </text><reference><text>zone-refining of metals or alloys <class-ref scheme="cpc">C22B</class-ref></text></reference></title-part><title-part><text>PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE </text><reference><text>casting of metals, casting of other substances by the same processes or devices <class-ref scheme="cpc">B22D</class-ref>; working of plastics <class-ref scheme="cpc">B29</class-ref>; modifying the physical structure of metals or alloys <class-ref scheme="cpc">C21D</class-ref>, <class-ref scheme="cpc">C22F</class-ref></text></reference></title-part><title-part><text>SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE</text></title-part><title-part><text>AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE </text><reference><text>for producing semiconductor devices or parts thereof <class-ref scheme="cpc">H01L</class-ref>, <class-ref scheme="cpc">H10</class-ref></text></reference></title-part><title-part><text>APPARATUS THEREFOR</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, the following expressions are used with the meaning indicated: <subnote type="bullet"><note-paragraph>"single-crystal" includes also twin crystals and a predominantly single crystal product; </note-paragraph><note-paragraph>"homogeneous polycrystalline material" means a material with crystal particles, all of which have the same chemical composition; </note-paragraph><note-paragraph>"defined structure" means the structure of a material with grains which are oriented in a preferential way or have larger dimensions than normally obtained.</note-paragraph></subnote></note-paragraph><note-paragraph>In this subclass: <subnote type="bullet"><note-paragraph>the preparation of crystals or a homogeneous polycrystalline material with defined structure of particular materials or shapes is classified in the group for the process as well as in group <class-ref scheme="cpc">C30B29/00</class-ref>; </note-paragraph><note-paragraph>an apparatus specially adapted for a specific process is classified in the appropriate group for the process. Apparatus to be used in more than one kind of process is classified in group <class-ref scheme="cpc">C30B35/00</class-ref>.</note-paragraph></subnote></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></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="3" additional-only="false" sort-key="C40" date-revised="2019-05-01" status="published"><classification-symbol>C40</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>COMBINATORIAL TECHNOLOGY</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C40" date-revised="2019-05-01" status="published"><classification-symbol>C40</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>COMBINATORIAL TECHNOLOGY</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C40B.xml" sort-key="C40B" definition-exists="true" date-revised="2021-02-01" status="published"><classification-symbol>C40B</classification-symbol><class-title date-revised="2021-02-01"><title-part><text>COMBINATORIAL CHEMISTRY</text></title-part><title-part><text>LIBRARIES, e.g. CHEMICAL LIBRARIES </text><reference><text><u>in silico</u> combinatorial libraries of nucleic acids, proteins or peptides <class-ref scheme="cpc">G16B35/00</class-ref>; <u>in silico</u> combinatorial chemistry <class-ref scheme="cpc">G16C20/60</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, the first place priority rule is applied, i.e. at each hierarchical level, classification is made in the first appropriate place.</note-paragraph><note-paragraph> When classifying in this subclass<CPC-specific-note>, subject matter of interest is also classified in other appropriate places:</CPC-specific-note><subnote type="bullet"><note-paragraph>library members are also classified in the appropriate places elsewhere in the IPC, (e.g. in section <class-ref scheme="cpc">C</class-ref>) according to established procedure relating to "Markush"-type formulae (see paragraph 100 and 101 of the Guide);</note-paragraph><note-paragraph> <CPC-specific-note>methods or apparatus covered by this subclass are also classified for their biological, chemical, physical or other features in the appropriate places in the IPC, if such features are of interest, e.g. <table><row><entry><class-ref scheme="cpc">A01N</class-ref></entry><entry> Biocides </entry></row><row><entry><class-ref scheme="cpc">A61K</class-ref></entry><entry> Preparations for medical, dental or toilet purposes </entry></row><row><entry><class-ref scheme="cpc">A61P</class-ref></entry><entry> Specific therapeutic activity of chemical compounds or medicinal preparations </entry></row><row><entry><class-ref scheme="cpc">B01D</class-ref></entry><entry> Separation </entry></row><row><entry><class-ref scheme="cpc">B01J</class-ref></entry><entry> Chemical or physical processes, e.g. catalysis; Apparatus therefor </entry></row><row><entry><class-ref scheme="cpc">B01L</class-ref></entry><entry> Chemical or physical laboratory apparatus </entry></row><row><entry><class-ref scheme="cpc">B29</class-ref></entry><entry> Shaped plastics </entry></row><row><entry><class-ref scheme="cpc">C01</class-ref>, <class-ref scheme="cpc">C07</class-ref>, <class-ref scheme="cpc">C08</class-ref></entry><entry> Inorganic, organic or organic macromolecular compounds; Methods of preparation or separation thereof </entry></row><row><entry><class-ref scheme="cpc">C12</class-ref></entry><entry> Biochemistry. microbiology, enzymology including microorganisms or enzymes, preparing them, using them to synthesise compounds or compositions; Measuring or testing processes involving microorganisms or enzymes; Mutation or genetic engineering </entry></row><row><entry><class-ref scheme="cpc">C22</class-ref></entry><entry> Metal alloys </entry></row><row><entry><class-ref scheme="cpc">G01N</class-ref></entry><entry> Chemical or physical analysis </entry></row><row><entry><class-ref scheme="cpc">G01R</class-ref>, <class-ref scheme="cpc">G01T</class-ref></entry><entry>Physical measurements methods; Apparatus therefor</entry></row><row><entry><class-ref scheme="cpc">G03F</class-ref></entry><entry> Photomechanical methods </entry></row><row><entry><class-ref scheme="cpc">G06F</class-ref></entry><entry> Electrical digital data processing </entry></row><row><entry><class-ref scheme="cpc">G06K</class-ref></entry><entry> Data processing </entry></row><row><entry><class-ref scheme="cpc">G06T</class-ref></entry><entry> Image data processing </entry></row><row><entry><class-ref scheme="cpc">G09F</class-ref></entry><entry> Displaying; Advertising.</entry></row></table></CPC-specific-note></note-paragraph></subnote></note-paragraph><note-paragraph><CPC-specific-note><class-ref scheme="cpc">C12N15/1034</class-ref> - <class-ref scheme="cpc">C12N15/1093</class-ref> always take precedence over <class-ref scheme="cpc">C40B</class-ref>.</CPC-specific-note></note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="3" additional-only="false" sort-key="C99" date-revised="2019-05-01" status="published"><classification-symbol>C99</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="true" level="4" additional-only="false" sort-key="C99" date-revised="2019-05-01" status="published"><classification-symbol>C99</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" link-file="cpc-scheme-C99Z.xml" sort-key="C99Z" definition-exists="false" date-revised="2019-05-01" status="published"><classification-symbol>C99Z</classification-symbol><class-title date-revised="2019-05-01"><title-part><text>SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION</text></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph> This subclass <u>covers</u> subject matter that:<br/> <subnote type="alpha"><note-paragraph>Is not provided for, but is most closely related to, the subject matter covered by the subclasses of this section, and<br/> </note-paragraph><note-paragraph> Is not explicitly covered by any subclass of another section. </note-paragraph></subnote></note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item></classification-item></class-scheme> |