IPC Subgroup
D02G 1/2 Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
Introduced: September 1968
Last revised: January 2006
Full Title
Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics > Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
Classification Context
- Section:
- TEXTILES; PAPER
- Class:
- YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- Subclass:
- CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS
Top Applicants
Top 10 applicants by patent filingsfor 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