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CPC Subgroup
D01F 6/02

from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds

Full Title

Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof > from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds

8 direct subcodes

Child Classifications

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  • D01F 6/14 from polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
  • D01F 6/16 from polymers of unsaturated carboxylic acids or unsaturated organic esters, e.g. polyacrylic esters, polyvinyl acetate
  • D01F 6/18 from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
  • D01F 6/24 from polymers of aliphatic compounds with more than one carbon-to-carbon double bond
  • D01F 6/26 from other polymers

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