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DIFF Main Group
B41L 29/00

Devices for attaching printing elements or formes to supports

Introduced: September 1968

IPC and CPC are identically structured here. All 7 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B41L 29/02 magnetic IPC+CPC Available in IPC and CPC
  • B41L 29/04 for attaching printing elements to flat type-beds IPC+CPC Available in IPC and CPC
  • B41L 29/06 for attaching elements to forme cylinders IPC+CPC Available in IPC and CPC
  • B41L 29/08 for attaching print formes to flat type-beds IPC+CPC Available in IPC and CPC
  • B41L 29/10 for attaching non-deformable curved printing formes to forme cylinders IPC+CPC Available in IPC and CPC
  • B41L 29/22 for attaching printing formes to intermediate supports, e.g. adapter members IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B41,2013–2023, worldwide · Source: EPO PATSTAT

  1. SEIKO EPSON CORPORATION 14,672
  2. CANON 14,153
  3. RICOH COMPANY 8,049
  4. SEIKO EPSON CORPORATION JP 8,044
  5. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,312
  6. BROTHER INDUSTRIES 6,887
  7. KYOCERA DOCUMENT SOLUTIONS 5,463
  8. CANON JP 5,001
  9. KONICA MINOLTA CORPORATION 4,512
  10. BROTHER INDUSTRIES JP 3,681

Top Applicants (CPC)

Class B41,2013–2023, worldwide · Source: EPO PATSTAT

  1. SEIKO EPSON CORPORATION 8,446
  2. SEIKO EPSON CORPORATION JP 8,438
  3. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,828
  4. CANON JP 5,419
  5. CANON 4,156
  6. BROTHER INDUSTRIES JP 3,763
  7. BROTHER INDUSTRIES 2,779
  8. RICOH COMPANY JP 2,717
  9. FUJIFILM JP 2,423
  10. RICOH COMPANY 1,739