Top IPC subclasses
|
1
|
C07C
|
14
|
Acyclic or carbocyclic compounds
|
|
2
|
C07F
|
12
|
acyclic, carbocyclic, or heterocyclic compounds containing elements other than carbon, hydrogen, hal
|
|
3
|
C12N
|
12
|
Micro-organisms or enzymes; compositions thereof; propagating, preserving, or maintaining micro-organisms; mutation or genetic engineering; culture media
|
|
4
|
C07D
|
7
|
Heterocyclic compounds
|
|
5
|
C12R
|
6
|
Indexing scheme associated with subclasses C12C-C12Q, relating to micro-organisms
|
|
6
|
C23F
|
3
|
non-mechanical removal of metallic material from surfacesinhibiting corrosion of metallic materialin
|
|
7
|
C01B
|
2
|
non-metallic elementscompounds thereof
|
|
8
|
C09K
|
2
|
materials for applications not otherwise provided forapplications of materials not otherwise provide
|