Top IPC subclasses
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1
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B65D
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10
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Containers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers; accessories, closures, or fittings therefor; packaging elements; packages
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2
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A23L
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6
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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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3
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B02C
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3
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crushing, pulverising, or disintegrating in generalmilling grain
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4
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F04F
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2
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pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumpedsiphons
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