Top IPC subclasses
|
1
|
C09K
|
4
|
materials for applications not otherwise provided forapplications of materials not otherwise provide
|
|
2
|
C07C
|
3
|
Acyclic or carbocyclic compounds
|
|
3
|
C01G
|
3
|
Compounds containing metals not covered by subclasses C01D or C01F
|
|
4
|
C07F
|
2
|
acyclic, carbocyclic, or heterocyclic compounds containing elements other than carbon, hydrogen, hal
|
|
5
|
C30B
|
2
|
single-crystal growthunidirectional solidification of eutectic material or unidirectional demixing o
|
|
6
|
B82Y
|
2
|
|
|
7
|
C07D
|
1
|
Heterocyclic compounds
|
|
8
|
C01B
|
1
|
non-metallic elementscompounds thereof
|
|
9
|
C08F
|
1
|
macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
|