Top IPC subclasses
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1
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C02F
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5
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Treatment of water, waste water, sewage, or sludge
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2
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C25D
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5
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processes for the electrolytic or electrophoretic production of coatingselectroformingjoining workpi
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3
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A61K
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3
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Preparations for medical, dental, or toilet purposes
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4
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A61P
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3
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Specific therapeutic activity of chemical compounds or medicinal preparations
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5
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C09D
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2
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coating compositions, e.g. paints, varnishes, lacquersfilling pasteschemical paint or ink removersin
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6
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B01D
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1
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Separation
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7
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B82B
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1
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nano-structuresmanufacture or treatment thereof
|
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8
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B32B
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1
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layered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb,
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9
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C23C
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1
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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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