Top IPC subclasses
1
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C08G
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2
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macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsatu
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2
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C07D
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1
|
Heterocyclic compounds
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3
|
G01L
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1
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measuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure
|
4
|
G01B
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1
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measuring length, thickness, or similar linear dimensionsmeasuring anglesmeasuring areasmeasuring ir
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5
|
G03C
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1
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photosensitive materials for photographic purposesphotographic processes, e.g. cine, x-ray, colour,
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6
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C12H
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1
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pasteurisation, sterilisation, preservation, purification, clarification, ageing of alcoholic bevera
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