Top IPC subclasses
1
|
C02F
|
18
|
Treatment of water, waste water, sewage, or sludge
|
2
|
C12N
|
5
|
Micro-organisms or enzymes; compositions thereof; propagating, preserving, or maintaining micro-organisms; mutation or genetic engineering; culture media
|
3
|
C12R
|
4
|
Indexing scheme associated with subclasses C12C-C12Q, relating to micro-organisms
|
4
|
A01N
|
4
|
Preservation of bodies of humans or animals or plants or parts thereof; biocides, e.g. as disinfectants, as pesticides or as herbicides; pest repellants or attractants; plant growth regulators
|
5
|
B01D
|
3
|
Separation
|
6
|
A62D
|
2
|
chemical means for extinguishing firesprocesses for making harmful chemical substances harmless, or
|
7
|
A01P
|
1
|
Biocidal, pest repellant, pest attractant or plant growth regulatory activity of chemical compounds or preparations
|