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