Top IPC subclasses
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1
|
A01B
|
11
|
Soil working in agriculture or forestry; parts, details, or accessories of agricultural machines or implements, in general
|
|
2
|
C05F
|
5
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organic fertilisers not covered by subclasses , , e.g. fertilisers from waste or refuse
|
|
3
|
C09K
|
5
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materials for applications not otherwise provided forapplications of materials not otherwise provide
|
|
4
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H01B
|
5
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cablesconductorsinsulatorsselection of materials for their conductive, insulating, or dielectric pro
|
|
5
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C05C
|
4
|
nitrogenous fertilisers
|
|
6
|
A01C
|
4
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Planting; sowing; fertilising
|
|
7
|
G01B
|
4
|
measuring length, thickness, or similar linear dimensionsmeasuring anglesmeasuring areasmeasuring ir
|
|
8
|
G01R
|
3
|
Measuring electric variables; measuring magnetic variables
|
|
9
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C05D
|
3
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inorganic fertilisers not covered by subclasses , fertilisers producing carbon dioxide
|
|
10
|
C22C
|
2
|
alloys
|
|
11
|
C01G
|
2
|
Compounds containing metals not covered by subclasses C01D or C01F
|
|
12
|
H01L
|
2
|
Semiconductor devices; electric solid state devices not otherwise provided for
|
|
13
|
E02B
|
1
|
hydraulic engineering
|
|
14
|
B09B
|
1
|
disposal of solid waste
|
|
15
|
A01G
|
1
|
Horticulture; cultivation of vegetables, flowers, rice, fruit, vines, hops, or seaweed; forestry; watering
|
|
16
|
A01P
|
1
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Biocidal, pest repellant, pest attractant or plant growth regulatory activity of chemical compounds or preparations
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