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DIFF Subgroup
B41F 33/04

Tripping devices or stop-motions ( ; cylinder-tripping devices of rotary presses or machines B41F13/24; arrangements for tripping inking rollers B41F31/30)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Tripping devices or stop-motions

CPC: Tripping devices or stop-motions ( ; cylinder-tripping devices of rotary presses or machines B41F13/24; arrangements for tripping inking rollers B41F31/30)

Full Title

Full titles differ between systems:

IPC:

Indicating, counting, warning, control or safety devices > Tripping devices or stop-motions

CPC:

Indicating, counting, warning, control or safety devices (arrangements of counting devices in platen presses B41F1/00 in cylinder presses B41F3/84; ink supply or metering devices B41F31/02) > Tripping devices or stop-motions ( ; cylinder-tripping devices of rotary presses or machines B41F13/24; arrangements for tripping inking rollers B41F31/30)

Of 6 combined children, 5 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • B41F 33/045 CPC only CPC only
  • B41F 33/06 for starting or stopping operation of sheet or web feed IPC+CPC Available in IPC and CPC
  • B41F 33/08 for starting or stopping operation of cylinders IPC+CPC Available in IPC and CPC
  • B41F 33/10 for starting or stopping operation of damping or inking units IPC+CPC Available in IPC and CPC
  • B41F 33/12 for starting or stopping the machine as a whole IPC+CPC Available in IPC and CPC
  • B41F 33/14 Automatic control of tripping devices by feelers, photoelectric devices, pneumatic devices, or other detectors 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