Top IPC subclasses
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1
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C07J
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1
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steroids
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2
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A61K
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1
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Preparations for medical, dental, or toilet purposes
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3
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C12R
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1
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Indexing scheme associated with subclasses C12C-C12Q, relating to micro-organisms
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4
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C11B
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1
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producing (pressing, extraction), refining or preserving fats, fatty substances (e.g. lanolin), fatt
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5
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C12P
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1
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fermentation or enzyme-using processes to synthesise a desired chemical compound or composition or t
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6
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C12N
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1
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Micro-organisms or enzymes; compositions thereof; propagating, preserving, or maintaining micro-organisms; mutation or genetic engineering; culture media
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