DIFF Main Group
D04B 21/00 Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
Introduced: September 1968
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- D04B 21/02 Pile fabrics or articles having similar surface features IPC+CPC Available in IPC and CPC
- D04B 21/06 Patterned fabrics or articles (open-work fabrics D04B21/10) IPC+CPC Available in IPC and CPC
- D04B 21/14 Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes (pile fabrics D04B21/02; non-woven fabrics in general D04H) +1 CPC IPC+CPC Available in IPC and CPC
- D04B 21/20 specially adapted for knitting articles of particular configuration +3 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class D04,2013–2023, worldwide · Source: EPO PATSTAT
- P&G (PROCTER & GAMBLE COMPANY) US 887
- KIMBERLY-CLARK CORPORATION US 727
- TORAY INDUSTRIES JP 692
- NIKE US 633
- SEIKO EPSON CORPORATION 537
- TORAY INDUSTRIES 528
- NIKE INNOVATE US 522
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 479
- NATIONAL DONG HWA UNIVERSITY 439
- NINGBO CIXING COMPANY 425
Top Applicants (CPC)
Class D04,2013–2023, worldwide · Source: EPO PATSTAT
- P&G (PROCTER & GAMBLE COMPANY) US 1,303
- TORAY INDUSTRIES JP 899
- KIMBERLY-CLARK CORPORATION US 856
- NIKE INNOVATE US 852
- NIKE US 749
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 569
- SHIMA SEIKI MANUFACTURING JP 469
- SAINT-GOBAIN ISOVER FR 468
- REIFENHAEUSER & COMPANY MASCHINENFABRIK DE 462
- NIKE INNOVATE NL 363