Top IPC subclasses
1
|
C03C
|
8
|
chemical composition of glasses, glazes, or vitreous enamelssurface treatment of glasssurface treatm
|
2
|
C02F
|
7
|
Treatment of water, waste water, sewage, or sludge
|
3
|
B01J
|
7
|
Chemical or physical processes, e.g. catalysis, colloid chemistry; their relevant apparatus
|
4
|
A01N
|
5
|
Preservation of bodies of humans or animals or plants or parts thereof; biocides, e.g. as disinfectants, as pesticides or as herbicides; pest repellants or attractants; plant growth regulators
|
5
|
B01D
|
2
|
Separation
|
6
|
A01P
|
2
|
Biocidal, pest repellant, pest attractant or plant growth regulatory activity of chemical compounds or preparations
|
7
|
B28C
|
1
|
preparing clayproducing mixtures containing clay or cementitious material, e.g. plaster
|
8
|
A01K
|
1
|
animal husbandrycare of birds, fishes, insectsfishingrearing or breeding animals, not otherwise prov
|
9
|
C12H
|
1
|
pasteurisation, sterilisation, preservation, purification, clarification, ageing of alcoholic bevera
|
10
|
A01G
|
1
|
Horticulture; cultivation of vegetables, flowers, rice, fruit, vines, hops, or seaweed; forestry; watering
|
11
|
C25B
|
1
|
Electrolytic or electrophoretic processes for the production of compounds or non- metals; apparatus therefor
|