Top IPC subclasses
|
1
|
C07C
|
32
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Acyclic or carbocyclic compounds
|
|
2
|
C07F
|
28
|
acyclic, carbocyclic, or heterocyclic compounds containing elements other than carbon, hydrogen, hal
|
|
3
|
C12N
|
20
|
Micro-organisms or enzymes; compositions thereof; propagating, preserving, or maintaining micro-organisms; mutation or genetic engineering; culture media
|
|
4
|
A01N
|
16
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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
|
C23F
|
13
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non-mechanical removal of metallic material from surfacesinhibiting corrosion of metallic materialin
|
|
6
|
A01C
|
9
|
Planting; sowing; fertilising
|
|
7
|
C07D
|
7
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Heterocyclic compounds
|
|
8
|
A61K
|
6
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Preparations for medical, dental, or toilet purposes
|
|
9
|
A01G
|
6
|
Horticulture; cultivation of vegetables, flowers, rice, fruit, vines, hops, or seaweed; forestry; watering
|
|
10
|
A61P
|
4
|
Specific therapeutic activity of chemical compounds or medicinal preparations
|
|
11
|
C12R
|
4
|
Indexing scheme associated with subclasses C12C-C12Q, relating to micro-organisms
|
|
12
|
A01P
|
4
|
Biocidal, pest repellant, pest attractant or plant growth regulatory activity of chemical compounds or preparations
|
|
13
|
B82Y
|
4
|
|
|
14
|
C01G
|
3
|
Compounds containing metals not covered by subclasses C01D or C01F
|
|
15
|
B01J
|
3
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Chemical or physical processes, e.g. catalysis, colloid chemistry; their relevant apparatus
|
|
16
|
H01M
|
3
|
processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical ene
|
|
17
|
B82B
|
2
|
nano-structuresmanufacture or treatment thereof
|
|
18
|
C07B
|
2
|
General methods of organic chemistry; apparatus therefor
|
|
19
|
C09K
|
2
|
materials for applications not otherwise provided forapplications of materials not otherwise provide
|
|
20
|
C01F
|
2
|
compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium
|