IPC Main Group
B29K 311/00 Use of natural products or their composites, not provided for in groups , as reinforcement
Introduced: January 1995
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- Subclass:
- INDEXING SCHEME ASSOCIATED WITH SUBCLASSES , OR , RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
7 direct subcodes
Child Classifications
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- B29K 311/02 Cork
- B29K 311/04 Linoleum
- B29K 311/06 Bone, horn or ivory
- B29K 311/08 Leather
- B29K 311/1 Natural fibres, e.g. wool, cotton
- B29K 311/12 Paper, e.g. cardboard
- B29K 311/14 Wood, e.g. woodboard or fibreboard
Top Applicants
Top 10 applicants by patent filingsfor class B29, 2013–2023, worldwide · Source: EPO PATSTAT
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 3,802
- BOEING COMPANY US 3,087
- COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 2,315
- SUMITOMO RUBBER IND 1,784
- GE (GENERAL ELECTRIC COMPANY) US 1,663
- CANON 1,658
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,587
- TORAY INDUSTRIES JP 1,555
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,470
- LG CHEM KR 1,415