CPC Subclass Not Allocatable
B29K INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
Description
B29K is an indexing scheme that classifies materials used in plastic and polymer processing rather than the processing methods themselves. It covers moulding materials (thermoplastics, thermosetting resins, elastomers), reinforcement materials (fibres, fabrics, mats), fillers (mineral, organic), and preformed components such as inserts used in moulding operations. This classification is used as a supplementary index to other B29 subclasses to denote the specific material composition of plastic workpieces and related manufacturing inputs.
227 direct subcodes
Child Classifications
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- B29K 2001/00 Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
- B29K 2003/00 Use of starch or derivatives as moulding material
- B29K 2005/00 Use of polysaccharides or derivatives as moulding material
- B29K 2007/00 Use of natural rubber as moulding material
- B29K 2009/00 Use of rubber derived from conjugated dienes, as moulding material
- B29K 2011/00 Use of rubber derived from chloroprene as moulding material
- B29K 2019/00 Use of rubber not provided for in a single one of main groups as moulding material
- B29K 2021/00 Use of unspecified rubbers as moulding material
- B29K 2023/00 Use of polyalkenes as moulding material
- B29K 2025/00 Use of polymers of vinyl-aromatic compounds as moulding material
- B29K 2027/00 Use of polyvinylhalogenides as moulding material
- B29K 2029/00 Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals as moulding material
- B29K 2031/00 Use of polyvinylesters as moulding material
- B29K 2033/00 Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K 2035/00 Use of polymers of unsaturated polycarboxylic acids as moulding material
- B29K 2039/00 Use of polymers with unsaturated aliphatic radicals and with a nitrogen or a heterocyclic ring containing nitrogen in a side chain or derivatives thereof as moulding material
- B29K 2045/00 Use of polymers of unsaturated cyclic compounds having no unsaturated aliphatic groups in a side-chain, e.g. coumarone-indene resins or derivatives thereof, as moulding material
- B29K 2049/00 Use of polyacetylene or cyanic ester resins, i.e. polymers having one or more carbon-to-carbon triple bonds or derivatives thereof, as moulding material
- B29K 2055/00 Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups , as moulding material
- B29K 2059/00 Use of polyacetals , as moulding material
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