B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)
Description
B29D covers the manufacture of finished or semi-finished plastic articles through various forming and shaping processes applied to plastic materials or substances in a plastic state. This subclass encompasses diverse production techniques including molding, extrusion, thermoforming, casting, and lamination, applied to create specific end products such as containers, films, tubes, sheets, and composite structures. The classification focuses on the article-specific manufacturing processes rather than the general working methods, which are covered in the parent class B29C, or the machines and equipment used in production.
Filing statistics
CPC subclass B29D recorded 85,585 patent applications worldwide between 2013 and 2023. Annual filings declined from 7,849 in 2013 to 5,904 in 2023 (-25%), peaking at 9,051 applications in 2018. The most active applicants in class B29 are HEWLETT-PACKARD DEVELOPMENT COMPANY (4,167 applications), BOEING COMPANY (3,701 applications) and COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN (2,554 applications).
Source: EPO PATSTAT, worldwide filings
20 direct subcodes
Child Classifications
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- B29D 1/00 Producing articles with screw-threads
- B29D 11/00 Producing optical elements, e.g. lenses or prisms (grinding or polishing of optical elements B24B; constructional form of optical elements G02B; )
- B29D 12/00 Producing frames
- B29D 15/00 Producing gear wheels or similar articles with grooves or projections, e.g. control knobs
- B29D 16/00 Producing articles with corrugations (B29D23/18 takes precedence)
- B29D 17/00 Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records (recording sound or other information using formed grooves or the equivalent G11B); Producing record discs from master stencils
- B29D 19/00 Producing buttons or semi-finished parts of buttons
- B29D 21/00 Producing hair combs or similar toothed or slotted articles
- B29D 22/00 Producing hollow articles (tubular articles B29D23/00; pneumatic tyres B29D30/00)
- B29D 23/00 Producing tubular articles (B29D24/00 takes precedence)
- B29D 24/00 Producing articles with hollow walls
- B29D 25/00 Producing frameless domes
- B29D 28/00 Producing nets or the like, (by knotting D04G)
- B29D 29/00 Producing belts or bands
- B29D 30/00 Producing pneumatic or solid tyres or parts thereof (producing inner tubes B29D23/24; constructional form of tyres or parts thereof B60C; connection of valves to inflatable elastic bodies B60C29/00; testing of tyres G01M17/02)
- B29D 33/00 Producing bushes for bearings
- B29D 35/00 Producing footwear
- B29D 5/00 Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners
- B29D 7/00 Producing flat articles, e.g. films or sheets (B29D24/00 takes precedence)
- B29D 99/00 Subject matter not provided for in other groups of this subclass
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