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IPC Main Group
D01D 5/00

Formation of filaments, threads, or the like

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
TEXTILES; PAPER
Class:
NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
Subclass:
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS

16 direct subcodes

Child Classifications

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  • D01D 5/02 Starting the formation
  • D01D 5/04 Dry spinning methods
  • D01D 5/06 Wet spinning methods
  • D01D 5/11 Flash-spinning
  • D01D 5/18 by means of rotating spinnerets
  • D01D 5/2 with varying denier along their length
  • D01D 5/253 with a non-circular cross section; Spinnerette packs therefor
  • D01D 5/26 Formation of staple fibres
  • D01D 5/38 Formation of filaments, threads, or the like during polymerisation
  • D01D 5/4 by applying a shearing force to a dispersion or solution of filament formable polymers, e.g. by stirring
  • D01D 5/42 by cutting films into narrow ribbons or filaments or by fibrillation of films

Top Applicants

Top 10 applicants by patent filingsfor 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