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DIFF Subgroup
D01F 8/04

from synthetic polymers

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof > from synthetic polymers

CPC:

Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof > from synthetic polymers

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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  • D01F 8/06 with at least one polyolefin as constituent since 1974 IPC+CPC Available in IPC and CPC
  • D01F 8/08 with at least one polyacrylonitrile as constituent since 1974 IPC+CPC Available in IPC and CPC
  • D01F 8/10 with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent since 1974 IPC+CPC Available in IPC and CPC
  • D01F 8/12 with at least one polyamide as constituent since 1974 IPC+CPC Available in IPC and CPC
  • D01F 8/14 with at least one polyester as constituent since 1974 IPC+CPC Available in IPC and CPC
  • D01F 8/16 with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds as constituent since 1974 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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