Top IPC subclasses
|
1
|
C07C
|
3
|
Acyclic or carbocyclic compounds
|
|
2
|
B01F
|
3
|
mixing, e.g. dissolving, emulsifying, dispersing
|
|
3
|
B01J
|
3
|
Chemical or physical processes, e.g. catalysis, colloid chemistry; their relevant apparatus
|
|
4
|
C10L
|
3
|
fuels not otherwise provided fornatural gassynthetic natural gas obtained by processes not covered b
|
|
5
|
C11C
|
2
|
fatty acids from fats, oils or waxescandlesfats, oils or fatty acids by chemical modification of fat
|
|
6
|
E01H
|
1
|
street cleaningcleaning of permanent wayscleaning beachescleaning landdispersing fog in general
|
|
7
|
C11B
|
1
|
producing (pressing, extraction), refining or preserving fats, fatty substances (e.g. lanolin), fatt
|
|
8
|
E01C
|
1
|
construction of, or surfaces for, roads, sports grounds, or the likemachines or auxiliary tools for
|