Top IPC subclasses
|
1
|
C02F
|
12
|
Treatment of water, waste water, sewage, or sludge
|
|
2
|
A01B
|
12
|
Soil working in agriculture or forestry; parts, details, or accessories of agricultural machines or implements, in general
|
|
3
|
C05F
|
9
|
organic fertilisers not covered by subclasses , , e.g. fertilisers from waste or refuse
|
|
4
|
C09K
|
6
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materials for applications not otherwise provided forapplications of materials not otherwise provide
|
|
5
|
C05C
|
4
|
nitrogenous fertilisers
|
|
6
|
A01C
|
4
|
Planting; sowing; fertilising
|
|
7
|
G01B
|
4
|
measuring length, thickness, or similar linear dimensionsmeasuring anglesmeasuring areasmeasuring ir
|
|
8
|
B01F
|
3
|
mixing, e.g. dissolving, emulsifying, dispersing
|
|
9
|
C05D
|
3
|
inorganic fertilisers not covered by subclasses , fertilisers producing carbon dioxide
|
|
10
|
E02B
|
2
|
hydraulic engineering
|
|
11
|
A01G
|
2
|
Horticulture; cultivation of vegetables, flowers, rice, fruit, vines, hops, or seaweed; forestry; watering
|
|
12
|
B09B
|
1
|
disposal of solid waste
|
|
13
|
G01F
|
1
|
measuring volume, volume flow, mass flow, or liquid levelmetering by volume
|
|
14
|
A01K
|
1
|
animal husbandrycare of birds, fishes, insectsfishingrearing or breeding animals, not otherwise prov
|
|
15
|
A01P
|
1
|
Biocidal, pest repellant, pest attractant or plant growth regulatory activity of chemical compounds or preparations
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