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PCE
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CPC Subgroup
D01B 3/04

Machines or apparatus for washing or scouring loose wool fibres

Full Title

Mechanical removal of impurities from animal fibres (carbonising rags to recover animal fibres D01C5/00) > Machines or apparatus for washing or scouring loose wool fibres

3 direct subcodes

Child Classifications

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  • D01B 3/06 with circular movement of either wool or liquid
  • D01B 3/08 with longitudinal movement of either wool or liquid
  • D01B 3/10 Details of machines or apparatus

Top Applicants

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

  1. TORAY INDUSTRIES JP 1,268
  2. MASCHINENFABRIK RIETER CH 1,200
  3. NATIONAL DONG HWA UNIVERSITY 955
  4. LENZING AT 602
  5. P&G (PROCTER & GAMBLE COMPANY) US 594
  6. WUHAN TEXTILE UNIVERSITY 494
  7. TRUETZSCHLER & COMPANY DE 453
  8. KOLON INDUSTRIES KR 433
  9. OERLIKON TEXTILE & COMPANY DE 430
  10. CHINESE ACADEMY OF SCIENCES 412