D01F CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
Introduced: September 1968
Description
D01F covers chemical aspects and specialized apparatus involved in producing synthetic filaments, threads, fibers, bristles, and ribbons through man-made processes. This includes chemical composition of spinning solutions, coagulation baths, chemical treatments during fiber formation, and equipment designed specifically for carbon filament production. The classification addresses both the chemical formulations and specialized machinery required for synthetic fiber manufacturing, distinguishing it from mechanical spinning processes covered elsewhere in D01. Adjacent classes handle natural fiber processing and general mechanical aspects of spinning operations.
Title
Titles differ between systems:
IPC: CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
CPC: CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
Full Title
Full titles differ between systems:
CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
IPC and CPC are identically structured here. All 8 subcodes exist in both systems.
6 shared codes have differing titles between IPC and CPC.
Child Classifications
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- D01F 1/00 General methods for the manufacture of artificial filaments or the like IPC+CPC Available in IPC and CPC
- D01F 11/00 Chemical after-treatment of artificial filaments or the like during manufacture since 1974 IPC+CPC Available in IPC and CPC
- D01F 13/00 Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like since 1974 IPC+CPC Available in IPC and CPC
- D01F 2/00 Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof since 1974 IPC+CPC Available in IPC and CPC
- D01F 4/00 Monocomponent artificial filaments or the like of proteins; Manufacture thereof since 1974 IPC+CPC Available in IPC and CPC
- D01F 6/00 Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof since 1974 IPC+CPC Available in IPC and CPC
- D01F 8/00 Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof since 1974 IPC+CPC Available in IPC and CPC
- D01F 9/00 Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments 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