DIFF Subgroup
D02G 3/44 Yarns or threads characterised by the purpose for which they are designed
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for > Yarns or threads characterised by the purpose for which they are designed
CPC:
Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for (for producing crimped or curled yarns D02G1/00) > Yarns or threads characterised by the purpose for which they are designed
CPC subdivides this area 6x more granularly than IPC with 9 additional codes.
9 codes are CPC-only extensions.
Child Classifications
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Top Applicants
Top Applicants (IPC)
Class D02,2013–2023, worldwide · Source: EPO PATSTAT
- JIANGNAN UNIVERSITY 383
- TORAY INDUSTRIES JP 349
- TORAY INDUSTRIES 281
- OERLIKON TEXTILE & COMPANY DE 224
- CONTINENTAL REIFEN DE 208
- NATIONAL DONG HWA UNIVERSITY 203
- KOLON INDUSTRIES KR 188
- WUHAN TEXTILE UNIVERSITY 184
- COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 176
- TMT MACHINERY 155
Top Applicants (CPC)
Class D02,2013–2023, worldwide · Source: EPO PATSTAT
- TORAY INDUSTRIES JP 443
- OERLIKON TEXTILE & COMPANY DE 242
- KOLON INDUSTRIES KR 232
- CONTINENTAL REIFEN DE 204
- JIANGNAN UNIVERSITY 193
- COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 178
- TMT MACHINERY 168
- NATIONAL DONG HWA UNIVERSITY 163
- WUHAN TEXTILE UNIVERSITY 153
- P&G (PROCTER & GAMBLE COMPANY) US 131