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IPC Subgroup
D01H 9/04

Doffing arrangements integral with spinning or twisting machines

Introduced: September 1968

Last revised: January 2006

Full Title

Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations > for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements > Doffing arrangements integral with spinning or twisting machines

Classification Context

Section:
TEXTILES; PAPER
Class:
NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
Subclass:
SPINNING OR TWISTING

1 direct subcode

Child Classifications

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  • D01H 9/06 Removing yarn from centrifugal cups on to yarn carriers

Top Applicants

Top 10 applicants by patent filingsfor class D01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. NATIONAL DONG HWA UNIVERSITY 1,242
  2. MASCHINENFABRIK RIETER CH 1,162
  3. TORAY INDUSTRIES JP 1,093
  4. TORAY INDUSTRIES 802
  5. JIANGNAN UNIVERSITY 771
  6. WUHAN TEXTILE UNIVERSITY 663
  7. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 653
  8. CHINESE ACADEMY OF SCIENCES 559
  9. LENZING AT 525
  10. MURATA MACHINERY 492