Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
D04H 1/46

by needling or like operations to cause entanglement of fibres (D04H1/45 takes precedence; needling machines D04H18/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: by needling or like operations to cause entanglement of fibres

CPC: by needling or like operations to cause entanglement of fibres (D04H1/45 takes precedence; needling machines D04H18/00)

Full Title

Full titles differ between systems:

IPC:

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 > by needling or like operations to cause entanglement of fibres

CPC:

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 > by needling or like operations to cause entanglement of fibres (D04H1/45 takes precedence; needling machines D04H18/00)

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

  • D04H 1/465 CPC only CPC only
  • D04H 1/498 entanglement of layered webs since 2012 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class D04,2013–2023, worldwide · Source: EPO PATSTAT

  1. P&G (PROCTER & GAMBLE COMPANY) US 887
  2. KIMBERLY-CLARK CORPORATION US 727
  3. TORAY INDUSTRIES JP 692
  4. NIKE US 633
  5. SEIKO EPSON CORPORATION 537
  6. TORAY INDUSTRIES 528
  7. NIKE INNOVATE US 522
  8. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 479
  9. NATIONAL DONG HWA UNIVERSITY 439
  10. NINGBO CIXING COMPANY 425

Top Applicants (CPC)

Class D04,2013–2023, worldwide · Source: EPO PATSTAT

  1. P&G (PROCTER & GAMBLE COMPANY) US 1,303
  2. TORAY INDUSTRIES JP 899
  3. KIMBERLY-CLARK CORPORATION US 856
  4. NIKE INNOVATE US 852
  5. NIKE US 749
  6. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 569
  7. SHIMA SEIKI MANUFACTURING JP 469
  8. SAINT-GOBAIN ISOVER FR 468
  9. REIFENHAEUSER & COMPANY MASCHINENFABRIK DE 462
  10. NIKE INNOVATE NL 363