Top IPC subclasses
|
1
|
A61K
|
15
|
Preparations for medical, dental, or toilet purposes
|
|
2
|
C01G
|
8
|
Compounds containing metals not covered by subclasses C01D or C01F
|
|
3
|
C02F
|
5
|
Treatment of water, waste water, sewage, or sludge
|
|
4
|
A61P
|
5
|
Specific therapeutic activity of chemical compounds or medicinal preparations
|
|
5
|
C09D
|
4
|
coating compositions, e.g. paints, varnishes, lacquersfilling pasteschemical paint or ink removersin
|
|
6
|
A61Q
|
3
|
use of cosmetics or similar toilet preparations
|
|
7
|
C12G
|
3
|
Wine; other alcoholic beverages; preparation thereof
|
|
8
|
B05D
|
3
|
processes for applying liquids or other fluent materials to surfaces, in general
|
|
9
|
G01N
|
3
|
Investigating or analysing materials by determining their chemical or physical properties
|
|
10
|
C09C
|
3
|
treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling
|
|
11
|
B27K
|
3
|
processes, apparatus or selection of substances for impregnating, staining, dyeing, bleaching of woo
|
|
12
|
C25D
|
3
|
processes for the electrolytic or electrophoretic production of coatingselectroformingjoining workpi
|
|
13
|
A01K
|
3
|
animal husbandrycare of birds, fishes, insectsfishingrearing or breeding animals, not otherwise prov
|
|
14
|
B09B
|
2
|
disposal of solid waste
|
|
15
|
A62D
|
2
|
chemical means for extinguishing firesprocesses for making harmful chemical substances harmless, or
|
|
16
|
A61G
|
2
|
transport, personal conveyances, or accommodation specially adapted for patients or disabled persons
|
|
17
|
A61H
|
2
|
physical therapy apparatus, e.g. devices for locating or stimulating reflex points in the bodyartifi
|
|
18
|
C04B
|
2
|
Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
|
|
19
|
C23C
|
2
|
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
|
|
20
|
B01D
|
1
|
Separation
|