CPC Subgroup
D01H 1/20 Driving or stopping arrangements (for open-end spinning machines D01H4/12, D01H4/20, D01H4/42; safety devices D01H13/14)
Full Title
Spinning or twisting machines in which the product is wound-up continuously (open-end spinning machines D01H4/00 ) > Details (drafting arrangements D01H5/00; twisting arrangements D01H7/00) > Driving or stopping arrangements (for open-end spinning machines D01H4/12, D01H4/20, D01H4/42; safety devices D01H13/14)
4 direct subcodes
Child Classifications
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- D01H 1/22 for rollers (regulating or varying draft D01H5/32)
- D01H 1/24 for twisting arrangements, e.g. spindles (braking arrangements for spindles D01H7/22; interrelated flyer and bobbin drive mechanisms D01H7/50)
- D01H 1/28 for two or more machine elements possessing different characteristics but in operative association
- D01H 1/32 for complete machines
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