B29C 44/46 into an open space or onto moving surfaces, i.e. to make articles of indefinite length
Introduced: January 1995
Full Title
Full titles differ between systems:
Shaping by internal pressure generated in the material, e.g. swelling or foaming > Component parts, details or accessories; Auxiliary operations > Feeding the material to be shaped > into an open space or onto moving surfaces, i.e. to make articles of indefinite length
Shaping by internal pressure generated in the material, e.g. swelling or foaming > Auxiliary operations > Feeding the material to be shaped > into an open space or onto moving surfaces, i.e. to make articles of indefinite length
Of 6 combined children, 3 exist in both systems.
3 codes are CPC-only extensions.
IPC defines codes here since 1995.
Child Classifications
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- B29C 44/48 by gravity, e.g. casting onto, or between, moving surfaces since 1995 +1 CPC IPC+CPC Available in IPC and CPC
- B29C 44/50 using pressure difference, e.g. by extrusion or by spraying since 1995 +2 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B29,2013–2023, worldwide · Source: EPO PATSTAT
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 3,802
- BOEING COMPANY US 3,087
- COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 2,315
- SUMITOMO RUBBER IND 1,784
- GE (GENERAL ELECTRIC COMPANY) US 1,663
- CANON 1,658
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,587
- TORAY INDUSTRIES JP 1,555
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,470
- LG CHEM KR 1,415
Top Applicants (CPC)
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