CPC Main Group Additional Only
B29L 2031/00 Other particular articles
96 direct subcodes
Child Classifications
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- B29L 2031/04 Bearings
- B29L 2031/06 Rods, e.g. connecting rods
- B29L 2031/08 Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L 2031/10 Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
- B29L 2031/12 Chains
- B29L 2031/14 Filters
- B29L 2031/16 Frictional elements, e.g. brake or clutch linings
- B29L 2031/18 Heat-exchangers or parts thereof
- B29L 2031/20 Fuel-blocks, e.g. nuclear fuel elements
- B29L 2031/22 Hinges
- B29L 2031/24 Pipe joints or couplings (B29L2031/26 takes precedence)
- B29L 2031/26 Sealing devices, e.g. packaging for pistons or pipe joints
- B29L 2031/28 Tools, e.g. cutlery
- B29L 2031/30 Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L 2031/32 Wheels, pinions, pulleys, castors or rollers
- B29L 2031/34 Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L 2031/38 Loudspeaker cones; Acoustic diaphragms
- B29L 2031/40 Test specimens
- B29L 2031/42 Brushes
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