D01H SPINNING OR TWISTING (twisting oakum D01G35/00; crimping or curling of fibres, filaments, or yarns D02G1/00)
Description
D01H covers mechanical processes and apparatus for spinning fibres into yarn or twisting multiple yarns together. This classification encompasses conventional spinning methods (ring spinning, open-end spinning, friction spinning) and modern techniques applied to natural fibres (cotton, wool, silk) and man-made fibres (synthetic and regenerated). It includes machinery components such as spindles, drafting systems, and twist insertion mechanisms, as well as process control methods for yarn production. Adjacent classifications address fibre preparation (D01C-D01G) and yarn finishing/treatment (D01D, D02).
11 direct subcodes
Child Classifications
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- D01H 1/00 Spinning or twisting machines in which the product is wound-up continuously (open-end spinning machines D01H4/00 )
- D01H 11/00 Arrangements for confining or removing dust, fly or the like (cleaning of running surfaces in open-end spinning machines D01H4/22)
- D01H 13/00 Other common constructional features, details or accessories
- D01H 15/00 Piecing arrangements (for open-end spinning machines D01H4/48)
- D01H 17/00 Hand tools
- D01H 2700/00 Spinning or twisting machines; Drafting devices
- D01H 3/00 Spinning or twisting machines in which the product is wound-up intermittently, e.g. mules
- D01H 4/00 Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H 5/00 Drafting machines or arrangements
- D01H 7/00 Spinning or twisting arrangements (for open-end spinning D01H4/00)
- D01H 9/00 Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations
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