Top IPC subclasses
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1
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G01N
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2
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Investigating or analysing materials by determining their chemical or physical properties
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|
2
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C12H
|
2
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pasteurisation, sterilisation, preservation, purification, clarification, ageing of alcoholic bevera
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|
3
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C01B
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1
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non-metallic elementscompounds thereof
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4
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C07H
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1
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Sugars; derivatives thereof; nucleosides; nucleotides; nucleic acids
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5
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B01J
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1
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Chemical or physical processes, e.g. catalysis, colloid chemistry; their relevant apparatus
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