Top IPC subclasses
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1
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B65D
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6
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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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B29B
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4
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preparation or pretreatment of the material to be shapedmaking granules or preformsrecovery of plast
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3
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C08L
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3
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Compositions of macromolecular compounds
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4
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C08J
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2
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working-upgeneral processes of compoundingafter-treatment not covered by subclasses , , , or
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5
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B09B
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1
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disposal of solid waste
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