CPC Main Group
D01H 1/00 Spinning or twisting machines in which the product is wound-up continuously (open-end spinning machines D01H4/00 )
9 direct subcodes
Child Classifications
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- D01H 1/02 ring type
- D01H 1/04 flyer type
- D01H 1/06 cap type
- D01H 1/08 cup, pot or disc type, in which annular masses of yarn are formed by centrifugal action
- D01H 1/10 for imparting multiple twist, e.g. two-for-one twisting
- D01H 1/11 Spinning by false-twisting
- D01H 1/14 Details (drafting arrangements D01H5/00; twisting arrangements D01H7/00)
Top Applicants
Top 10 applicants by patent filingsfor class D01, 2013–2023, worldwide · Source: EPO PATSTAT
- TORAY INDUSTRIES JP 1,268
- MASCHINENFABRIK RIETER CH 1,200
- NATIONAL DONG HWA UNIVERSITY 955
- LENZING AT 602
- P&G (PROCTER & GAMBLE COMPANY) US 594
- WUHAN TEXTILE UNIVERSITY 494
- TRUETZSCHLER & COMPANY DE 453
- KOLON INDUSTRIES KR 433
- OERLIKON TEXTILE & COMPANY DE 430
- CHINESE ACADEMY OF SCIENCES 412