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IPC Main Group
D02H 3/00

Warping machines

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
TEXTILES; PAPER
Class:
YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
Subclass:
WARPING, BEAMING, OR LEASING

Filing statistics

IPC D02H 3/00 belongs to the parent subclass D02H, which recorded 4,719 patent applications worldwide between 2013 and 2023. Annual filings grew from 262 in 2013 to 510 in 2023 (+95%), peaking at 657 applications in 2020. The most active applicants in class D02 are JIANGNAN UNIVERSITY (383 applications), TORAY INDUSTRIES (349 applications) and TORAY INDUSTRIES (281 applications).

Source: EPO PATSTAT, worldwide filings

Top Applicants

Top 10 applicants by patent filingsfor class D02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. JIANGNAN UNIVERSITY 383
  2. TORAY INDUSTRIES JP 349
  3. TORAY INDUSTRIES 281
  4. OERLIKON TEXTILE & COMPANY DE 224
  5. CONTINENTAL REIFEN DE 208
  6. NATIONAL DONG HWA UNIVERSITY 203
  7. KOLON INDUSTRIES KR 188
  8. WUHAN TEXTILE UNIVERSITY 184
  9. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 176
  10. TMT MACHINERY 155