CPC Subgroup
B29C 73/16 Auto-repairing or self-sealing arrangements or agents
Full Title
Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D ( retreading tyres B29D30/54; devices for covering leaks in pipes or hoses F16L55/16) > Auto-repairing or self-sealing arrangements or agents
4 direct subcodes
Child Classifications
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- B29C 73/18 the article material itself being self-sealing, e.g. by compression
- B29C 73/22 the article containing elements including a sealing composition, e.g. powder being liberated when the article is damaged
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