DIFF Main Group
D04B 23/00 Flat warp knitting machines
Introduced: September 1968
IPC and CPC are identically structured here. All 10 subcodes exist in both systems.
Child Classifications
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- D04B 23/06 for producing fabrics consisting of, or incorporating, elastic threads IPC+CPC Available in IPC and CPC
- D04B 23/10 for knitting through thread, fleece, or fabric layers, or around elongated core material IPC+CPC Available in IPC and CPC
- D04B 23/12 with provision for incorporating unlooped wefts extending from selvedge to selvedge IPC+CPC Available in IPC and CPC
- D04B 23/14 with provision for incorporating small auxiliary elements, e.g. for decorative purposes IPC+CPC Available in IPC and CPC
- D04B 23/16 specially adapted for producing fabrics, or article blanks, of particular form or configuration IPC+CPC Available in IPC and CPC
- D04B 23/24 with cut needle presser arrangements to produce patterns 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