Top IPC subclasses
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1
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A01K
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10
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animal husbandrycare of birds, fishes, insectsfishingrearing or breeding animals, not otherwise prov
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2
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F24J
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8
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Production or use of heat not otherwise provided for
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3
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F24D
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3
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domestic- or space-heating systems, e.g. central heating systemsdomestic hot-water supply systemsele
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4
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B07B
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2
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separating solids from solids by sieving, screening, or sifting or by using gas currentsother separa
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5
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A01C
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1
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Planting; sowing; fertilising
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6
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E04F
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1
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finishing work on buildings, e.g. stairs, floors
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7
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B64D
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1
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equipment for fitting in or to aircraftflying suitsparachutesarrangements or mounting of power plant
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8
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B65G
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1
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transport or storage devices, e.g. conveyers for loading or tippingshop conveyer systemspneumatic tu
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