Top IPC subclasses
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1
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C01G
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7
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Compounds containing metals not covered by subclasses C01D or C01F
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|
2
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G01N
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7
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Investigating or analysing materials by determining their chemical or physical properties
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3
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B27K
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6
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processes, apparatus or selection of substances for impregnating, staining, dyeing, bleaching of woo
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4
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B44D
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6
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painting or artistic drawing, not otherwise provided forpreserving paintingssurface treatment to obt
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5
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B41M
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4
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printing, duplicating, marking, or copying processescolour printing
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6
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B05D
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3
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processes for applying liquids or other fluent materials to surfaces, in general
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|
7
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C09D
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3
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coating compositions, e.g. paints, varnishes, lacquersfilling pasteschemical paint or ink removersin
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8
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G06T
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2
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image data processing or generation, in general
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|
9
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C09C
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2
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treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling
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|
10
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C04B
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2
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Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
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|
11
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B44F
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1
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special designs or pictures
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|
12
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C23F
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1
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non-mechanical removal of metallic material from surfacesinhibiting corrosion of metallic materialin
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|
13
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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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