INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

Description

B29L is an indexing scheme that organizes patent documents in subclass B29 according to the specific end-products or articles made from plastics or plastic-state materials. Rather than classifying by processing method, B29L directs users to relevant prior art based on the final article type being manufactured—such as containers, films, pipes, or automotive components. This scheme functions as a navigational tool to help patent professionals locate existing patents related to particular plastic articles across the broader B29 processing technology classifications. It complements method-based classifications by providing product-focused access points within plastic working technologies.

19 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

B29L 2001/00 Articles provided with screw threads
B29L 2005/00 Elements of slide fasteners
B29L 2007/00 Flat articles, e.g. films or sheets (B29L2024/00 takes precedence)
B29L 2009/00 Layered products
B29L 2011/00 Optical elements, e.g. lenses, prisms
B29L 2012/00 Frames
B29L 2015/00 Gear wheels or similar articles with grooves or projections, e.g. control knobs
B29L 2016/00 Articles with corrugations or pleats (B29L2023/18, take precedence)
B29L 2017/00
B29L 2019/00 Buttons or semi-finished parts of buttons
B29L 2021/00 Hair combs or similar toothed or slotted articles
B29L 2022/00 Hollow articles (tubular articles B29L2023/00; pneumatic tyres B29L2030/00)
B29L 2023/00 Tubular articles (B29L2024/00 takes precedence )
B29L 2024/00 Articles with hollow walls
B29L 2025/00 Frameless domes
B29L 2028/00 Nets or the like
B29L 2029/00 Belts or bands
B29L 2030/00 Pneumatic or solid tyres or parts thereof
B29L 2031/00 Other particular articles

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