Top IPC subclasses
|
1
|
C07F
|
7
|
acyclic, carbocyclic, or heterocyclic compounds containing elements other than carbon, hydrogen, hal
|
|
2
|
C23F
|
6
|
non-mechanical removal of metallic material from surfacesinhibiting corrosion of metallic materialin
|
|
3
|
A61K
|
5
|
Preparations for medical, dental, or toilet purposes
|
|
4
|
C07C
|
4
|
Acyclic or carbocyclic compounds
|
|
5
|
A61P
|
4
|
Specific therapeutic activity of chemical compounds or medicinal preparations
|
|
6
|
C12N
|
4
|
Micro-organisms or enzymes; compositions thereof; propagating, preserving, or maintaining micro-organisms; mutation or genetic engineering; culture media
|
|
7
|
C01G
|
3
|
Compounds containing metals not covered by subclasses C01D or C01F
|
|
8
|
C12R
|
2
|
Indexing scheme associated with subclasses C12C-C12Q, relating to micro-organisms
|
|
9
|
B82Y
|
2
|
|
|
10
|
C07D
|
1
|
Heterocyclic compounds
|