Top IPC subclasses
1
|
A01B
|
5
|
Soil working in agriculture or forestry; parts, details, or accessories of agricultural machines or implements, in general
|
2
|
B01F
|
3
|
mixing, e.g. dissolving, emulsifying, dispersing
|
3
|
C10G
|
2
|
cracking hydrocarbon oilsproduction of liquid hydrocarbon mixtures, e.g. by destructive hydrogenatio
|
4
|
B01D
|
1
|
Separation
|
5
|
C07C
|
1
|
Acyclic or carbocyclic compounds
|
6
|
B01J
|
1
|
Chemical or physical processes, e.g. catalysis, colloid chemistry; their relevant apparatus
|
7
|
C10L
|
1
|
fuels not otherwise provided fornatural gassynthetic natural gas obtained by processes not covered b
|
8
|
C11C
|
1
|
fatty acids from fats, oils or waxescandlesfats, oils or fatty acids by chemical modification of fat
|