Top IPC subclasses
|
1
|
C12G
|
25
|
Wine; other alcoholic beverages; preparation thereof
|
|
2
|
B01D
|
16
|
Separation
|
|
3
|
A01N
|
16
|
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
|
|
4
|
A62D
|
13
|
chemical means for extinguishing firesprocesses for making harmful chemical substances harmless, or
|
|
5
|
C02F
|
9
|
Treatment of water, waste water, sewage, or sludge
|
|
6
|
B09B
|
8
|
disposal of solid waste
|
|
7
|
C01C
|
8
|
ammoniacyanogencompounds thereof
|
|
8
|
C25B
|
8
|
Electrolytic or electrophoretic processes for the production of compounds or non- metals; apparatus therefor
|
|
9
|
C05F
|
6
|
organic fertilisers not covered by subclasses , , e.g. fertilisers from waste or refuse
|
|
10
|
C12H
|
6
|
pasteurisation, sterilisation, preservation, purification, clarification, ageing of alcoholic bevera
|
|
11
|
A01P
|
6
|
Biocidal, pest repellant, pest attractant or plant growth regulatory activity of chemical compounds or preparations
|
|
12
|
C07C
|
5
|
Acyclic or carbocyclic compounds
|
|
13
|
B04B
|
4
|
centrifuges
|
|
14
|
C12F
|
4
|
recovery of by-products of fermented solutionsdenaturing of, or denatured, alcohol
|
|
15
|
B01J
|
4
|
Chemical or physical processes, e.g. catalysis, colloid chemistry; their relevant apparatus
|
|
16
|
A23L
|
4
|
Foods, foodstuffs, or non-alcoholic beverages, not covered by subclasses A21D or A23B-A23J; their preparation or treatment, e.g. cooking, modification of nutritive qualities, physical treatment; preservation of foods or foodstuffs, in general
|
|
17
|
G01N
|
3
|
Investigating or analysing materials by determining their chemical or physical properties
|
|
18
|
C05D
|
2
|
inorganic fertilisers not covered by subclasses , fertilisers producing carbon dioxide
|
|
19
|
A23B
|
2
|
preserving, e.g. by canning, meat, fish, eggs, fruit, vegetables, edible seedschemical ripening of f
|
|
20
|
C11C
|
2
|
fatty acids from fats, oils or waxescandlesfats, oils or fatty acids by chemical modification of fat
|