Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
D02G 1/08

Rollers

Introduced: September 1968

Last revised: January 2006

Full Title

Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics > by twisting, fixing the twist and backtwisting, i.e . by imparting false twist > Devices for imparting false twist > Rollers

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

  1. JIANGNAN UNIVERSITY 383
  2. TORAY INDUSTRIES JP 349
  3. TORAY INDUSTRIES 281
  4. OERLIKON TEXTILE & COMPANY DE 224
  5. CONTINENTAL REIFEN DE 208
  6. NATIONAL DONG HWA UNIVERSITY 203
  7. KOLON INDUSTRIES KR 188
  8. WUHAN TEXTILE UNIVERSITY 184
  9. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 176
  10. TMT MACHINERY 155