Top IPC subclasses
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1
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C11B
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2
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producing (pressing, extraction), refining or preserving fats, fatty substances (e.g. lanolin), fatt
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2
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B09B
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1
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disposal of solid waste
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3
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A23P
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1
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shaping or working of foodstuffs, not fully covered by a single other subclass
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4
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A23L
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1
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Foods, foodstuffs, or non-alcoholic beverages, not covered by subclasses A21D or A23B-A23J; their preparation or treatment, e.g. cooking, modification of nutritive qualities, physical treatment; preservation of foods or foodstuffs, in general
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