DIFF Subgroup
D04H 1/44 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
Introduced: September 1968
Full Title
Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres > from fleeces or layers composed of fibres without existing or potential cohesive properties > the fleeces or layers being consolidated by mechanical means, e.g. by rolling
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- D04H 1/45 by forming intermeshing loops or stitches from some of the fibres since 1985 IPC+CPC Available in IPC and CPC
- D04H 1/46 by needling or like operations to cause entanglement of fibres (D04H1/45 takes precedence; needling machines D04H18/00) +1 CPC IPC+CPC Available in IPC and CPC
- D04H 1/50 by treatment to produce shrinking, swelling, crimping or curling of fibres (in combination with needling D04H1/482) 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