IPC Subgroup
D01F 6/58 from homopolycondensation products
Introduced: July 1974
Last revised: January 2006
Full Title
Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof > from homopolycondensation products
Classification Context
- Section:
- TEXTILES; PAPER
- Class:
- NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- Subclass:
- CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
8 direct subcodes
Child Classifications
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- D01F 6/6 from polyamides
- D01F 6/62 from polyesters
- D01F 6/66 from polyethers
- D01F 6/68 from polyaminoacids or polypeptides
- D01F 6/7 from polyurethanes
- D01F 6/72 from polyureas
- D01F 6/74 from polycondensates of cyclic compounds, e.g. polyimides, polybenzimidazoles
- D01F 6/76 from other polycondensation products
Top Applicants
Top 10 applicants by patent filingsfor 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