IPC Main Group
D01G 23/00 Feeding fibres to machines; Conveying fibres between machines
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- TEXTILES; PAPER
- Class:
- NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- Subclass:
- PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
3 direct subcodes
Child Classifications
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- D01G 23/02 Hoppers; Delivery shoots
- D01G 23/06 Arrangements in which a machine or apparatus is regulated in response to changes in the volume or weight of fibres fed, e.g. piano motions
- D01G 23/08 Air draught or like pneumatic arrangements
Top Applicants
Top 10 applicants by patent filingsfor class D01, 2013–2023, worldwide · Source: EPO PATSTAT
- NATIONAL DONG HWA UNIVERSITY 1,242
- MASCHINENFABRIK RIETER CH 1,162
- TORAY INDUSTRIES JP 1,093
- TORAY INDUSTRIES 802
- JIANGNAN UNIVERSITY 771
- WUHAN TEXTILE UNIVERSITY 663
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 653
- CHINESE ACADEMY OF SCIENCES 559
- LENZING AT 525
- MURATA MACHINERY 492