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 8/08 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 8/16 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
- NATIONAL DONG HWA UNIVERSITY 1,242
- MASCHINENFABRIK RIETER CH 1,162
- TORAY INDUSTRIES JP 1,093
- TORAY INDUSTRIES 802
- JIANGNAN UNIVERSITY 771
- WUHAN TEXTILE UNIVERSITY 663
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 653
- CHINESE ACADEMY OF SCIENCES 559
- LENZING AT 525
- MURATA MACHINERY 492
Top Applicants (CPC)
Class D01,2013–2023, worldwide · Source: EPO PATSTAT
- TORAY INDUSTRIES JP 1,268
- MASCHINENFABRIK RIETER CH 1,200
- NATIONAL DONG HWA UNIVERSITY 955
- LENZING AT 602
- P&G (PROCTER & GAMBLE COMPANY) US 594
- WUHAN TEXTILE UNIVERSITY 494
- TRUETZSCHLER & COMPANY DE 453
- KOLON INDUSTRIES KR 433
- OERLIKON TEXTILE & COMPANY DE 430
- CHINESE ACADEMY OF SCIENCES 412