Top IPC subclasses
|
1
|
C07C
|
14
|
Acyclic or carbocyclic compounds
|
|
2
|
C07F
|
9
|
acyclic, carbocyclic, or heterocyclic compounds containing elements other than carbon, hydrogen, hal
|
|
3
|
C01G
|
8
|
Compounds containing metals not covered by subclasses C01D or C01F
|
|
4
|
A61K
|
6
|
Preparations for medical, dental, or toilet purposes
|
|
5
|
A61P
|
4
|
Specific therapeutic activity of chemical compounds or medicinal preparations
|
|
6
|
C09K
|
4
|
materials for applications not otherwise provided forapplications of materials not otherwise provide
|
|
7
|
C08L
|
3
|
Compositions of macromolecular compounds
|
|
8
|
B82B
|
3
|
nano-structuresmanufacture or treatment thereof
|
|
9
|
A01C
|
2
|
Planting; sowing; fertilising
|
|
10
|
G01T
|
2
|
measurement of nuclear or x-radiation
|
|
11
|
C07D
|
1
|
Heterocyclic compounds
|
|
12
|
C01B
|
1
|
non-metallic elementscompounds thereof
|
|
13
|
G02B
|
1
|
optical elements, systems, or apparatus
|
|
14
|
H05B
|
1
|
electric heatingelectric lighting not otherwise provided for
|
|
15
|
H01B
|
1
|
cablesconductorsinsulatorsselection of materials for their conductive, insulating, or dielectric pro
|
|
16
|
C01F
|
1
|
compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium
|
|
17
|
A01P
|
1
|
Biocidal, pest repellant, pest attractant or plant growth regulatory activity of chemical compounds or preparations
|