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DIFF Subgroup
B41F 13/08

Cylinders

Introduced: September 1968

Full Title

Common details of rotary presses or machines > Cylinders

Of 8 combined children, 7 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • B41F 13/085 CPC only CPC only
  • B41F 13/193 Transfer cylinders; Offset cylinders since 1995 IPC+CPC Available in IPC and CPC
  • B41F 13/22 Means for cooling or heating forme or impression cylinders IPC+CPC Available in IPC and CPC
  • B41F 13/42 Guards or covers, e.g. for preventing ingress or egress of foreign matter 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