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CPC Subgroup
D01F 6/28

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

Full Title

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

7 direct subcodes

Child Classifications

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  • D01F 6/30 comprising olefins as the major constituent
  • D01F 6/32 comprising halogenated hydrocarbons as the major constituent
  • D01F 6/34 comprising unsaturated alcohols, acetals or ketals as the major constituent
  • D01F 6/36 comprising unsaturated carboxylic acids or unsaturated organic esters as the major constituent
  • D01F 6/38 comprising unsaturated nitriles as the major constituent
  • D01F 6/40 Modacrylic fibres, i.e. containing 35 to 85% acrylonitrile
  • D01F 6/42 comprising cyclic compounds containing one carbon-to-carbon double bond in the side chain as major constituent

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