Top IPC subclasses
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1
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C23F
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20
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non-mechanical removal of metallic material from surfacesinhibiting corrosion of metallic materialin
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|
2
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C25D
|
12
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processes for the electrolytic or electrophoretic production of coatingselectroformingjoining workpi
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|
3
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C07C
|
4
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Acyclic or carbocyclic compounds
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|
4
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C01B
|
2
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non-metallic elementscompounds thereof
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|
5
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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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6
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B23H
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2
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Working of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool; such working combined with other forms of working of metal
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7
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B82B
|
1
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nano-structuresmanufacture or treatment thereof
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8
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H01L
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1
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Semiconductor devices; electric solid state devices not otherwise provided for
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|
9
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H01R
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1
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electrically-conductive connectionsstructural associations of a plurality of mutually-insulated elec
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|
10
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C25B
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1
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Electrolytic or electrophoretic processes for the production of compounds or non- metals; apparatus therefor
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