Top IPC subclasses
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1
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B27K
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5
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processes, apparatus or selection of substances for impregnating, staining, dyeing, bleaching of woo
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2
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C07C
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4
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Acyclic or carbocyclic compounds
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3
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C01C
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4
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ammoniacyanogencompounds thereof
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4
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B29B
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4
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preparation or pretreatment of the material to be shapedmaking granules or preformsrecovery of plast
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5
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B01D
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3
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Separation
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6
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B09B
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3
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disposal of solid waste
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7
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C09C
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3
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treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling
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8
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A01N
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3
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Preservation of bodies of humans or animals or plants or parts thereof; biocides, e.g. as disinfectants, as pesticides or as herbicides; pest repellants or attractants; plant growth regulators
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9
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C23C
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3
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Coating metallic material; coating material with metallic material; surface treatment of metallic material by diffusion into the surface, by chemical conversion or substitution; coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general
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10
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C02F
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2
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Treatment of water, waste water, sewage, or sludge
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|
11
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C12F
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2
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recovery of by-products of fermented solutionsdenaturing of, or denatured, alcohol
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|
12
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C23G
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2
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cleaning or de-greasing of metallic material by chemical methods other than electrolysis
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|
13
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A62D
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2
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chemical means for extinguishing firesprocesses for making harmful chemical substances harmless, or
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14
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C12H
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2
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pasteurisation, sterilisation, preservation, purification, clarification, ageing of alcoholic bevera
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15
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A01G
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2
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Horticulture; cultivation of vegetables, flowers, rice, fruit, vines, hops, or seaweed; forestry; watering
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|
16
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B08B
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1
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cleaning in generalprevention of fouling in general
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|
17
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C12G
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1
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Wine; other alcoholic beverages; preparation thereof
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|
18
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B01J
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1
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Chemical or physical processes, e.g. catalysis, colloid chemistry; their relevant apparatus
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|
19
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C08J
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1
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working-upgeneral processes of compoundingafter-treatment not covered by subclasses , , , or
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20
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C12P
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1
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fermentation or enzyme-using processes to synthesise a desired chemical compound or composition or t
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