Top IPC subclasses
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1
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C10M
|
10
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lubricating compositionsuse of chemical substances either alone or as lubricating ingredients in a l
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|
2
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B24B
|
6
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machines, devices, or processes for grinding or polishingdressing or conditioning of abrading surfac
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|
3
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B23F
|
5
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making gears or toothed racks
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|
4
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C10N
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2
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indexing scheme associated with subclass
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|
5
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C23C
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2
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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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6
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B24D
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1
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tools for grinding, buffing, or sharpening
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|
7
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F16B
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1
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devices for fastening or securing constructional elements or machine parts together, e.g. nails, bol
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|
8
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F16L
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1
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Pipes; joints or fittings for pipes; supports for pipes, cables or protective tubing; means for thermal insulation in general
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