CPC Main Group Additional Only
B29K 2309/00 Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
6 direct subcodes
Child Classifications
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- B29K 2309/02 Ceramics
- B29K 2309/06 Concrete
- B29K 2309/08 Glass
- B29K 2309/10 Mica
- B29K 2309/12 Asbestos
Top Applicants
Top 10 applicants by patent filingsfor class B29, 2013–2023, worldwide · Source: EPO PATSTAT
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 4,167
- BOEING COMPANY US 3,701
- COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 2,554
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 2,240
- TORAY INDUSTRIES JP 2,133
- GE (GENERAL ELECTRIC COMPANY) US 2,069
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,028
- LG CHEM KR 1,962
- DOW GLOBAL TECHNOLOGIES US 1,896
- CONTINENTAL REIFEN DE 1,725