Top IPC subclasses
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1
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A61K
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14
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Preparations for medical, dental, or toilet purposes
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2
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A61P
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6
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Specific therapeutic activity of chemical compounds or medicinal preparations
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3
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B01D
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5
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Separation
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4
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C02F
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4
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Treatment of water, waste water, sewage, or sludge
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5
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C07C
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3
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Acyclic or carbocyclic compounds
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6
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B01J
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3
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Chemical or physical processes, e.g. catalysis, colloid chemistry; their relevant apparatus
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7
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A01M
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3
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catching, trapping or scaring of animalsapparatus for the destruction of noxious animals or noxious
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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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A61B
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2
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Diagnosis; surgery; identification
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10
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C10G
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2
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cracking hydrocarbon oilsproduction of liquid hydrocarbon mixtures, e.g. by destructive hydrogenatio
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11
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A23B
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2
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preserving, e.g. by canning, meat, fish, eggs, fruit, vegetables, edible seedschemical ripening of f
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12
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C01B
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1
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non-metallic elementscompounds thereof
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13
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H05B
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1
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electric heatingelectric lighting not otherwise provided for
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14
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A23L
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1
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Foods, foodstuffs, or non-alcoholic beverages, not covered by subclasses A21D or A23B-A23J; their preparation or treatment, e.g. cooking, modification of nutritive qualities, physical treatment; preservation of foods or foodstuffs, in general
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15
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B65D
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1
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Containers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers; accessories, closures, or fittings therefor; packaging elements; packages
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