IPC Main Group
D02J 1/00 Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- TEXTILES; PAPER
- Class:
- YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- Subclass:
- FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES, OR THE LIKE
10 direct subcodes
Child Classifications
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- D02J 1/02 Bulking, e.g. looping
- D02J 1/04 Compacting
- D02J 1/06 Imparting irregularity, e.g. slubbing or other non-uniform features, e.g. high- and low-shrinkage or strengthened and weakened sections
- D02J 1/08 Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
- D02J 1/12 Modifying stretch/bulk properties of textured yarns or the like by after-treatment
- D02J 1/14 Rendering uniform or evening non-uniform features
- D02J 1/16 Rubbing or similar working, e.g. to redistribute or remove fibres
- D02J 1/18 Separating or spreading
- D02J 1/2 Stressing or stress-relieving, e.g. by vibration or subjection to electrostatic stress or electric discharge
- D02J 1/22 Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
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