B29C 48/30 Extrusion nozzles or dies (extrusion characterised by the shape or cross-section of the extruded article B29C48/03)
Introduced: January 2019
Title
Titles differ between systems:
IPC: Extrusion nozzles or dies
CPC: Extrusion nozzles or dies (extrusion characterised by the shape or cross-section of the extruded article B29C48/03)
Full Title
Full titles differ between systems:
Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor > Component parts, details or accessories; Auxiliary operations > Extrusion nozzles or dies
Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C49/04) > Component parts, details or accessories; Auxiliary operations > Extrusion nozzles or dies (extrusion characterised by the shape or cross-section of the extruded article B29C48/03)
CPC subdivides this area 2x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions.
IPC defines codes here since 2019.
Child Classifications
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- B29C 48/305 having a wide opening, e.g. for forming sheets since 2019 +1 CPC IPC+CPC Available in IPC and CPC
- B29C 48/32 with annular openings, e.g. for forming tubular articles since 2019 IPC+CPC Available in IPC and CPC
- B29C 48/345 Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising since 2019 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