DIFF Main Group
B29C 33/00 Moulds or cores; Details thereof or accessories therefor
Introduced: January 1985
Of 24 combined children, 12 exist in both systems.
12 codes are CPC-only extensions.
3 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1985.
Child Classifications
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- B29C 33/02 with incorporated heating or cooling means since 1985 +2 CPC IPC+CPC Available in IPC and CPC
- B29C 33/12 with incorporated means for positioning inserts, e.g. labels since 1985 +1 CPC IPC+CPC Available in IPC and CPC
- B29C 33/34 movable, e.g. to or from the moulding station since 1985 IPC+CPC Available in IPC and CPC
- B29C 33/38 characterised by the material or the manufacturing process (B29C33/44 takes precedence) since 1985 +6 CPC IPC+CPC Available in IPC and CPC
- B29C 33/42 characterised by the shape of the moulding surface, e.g. ribs or grooves since 1985 +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