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IPC Subgroup
D01F 6/88

from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds

Introduced: July 1974

Last revised: January 2006

Full Title

Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof > from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds

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

3 direct subcodes

Child Classifications

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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