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CPC Subgroup
B41L 39/04

Tripping devices or stop motions

Full Title

Indicating, counting, warning, control, or safety devices (ink-level control devices B41L27/04; such devices in general, see relevant subclasses, e.g. counting in general G06M) > Tripping devices or stop motions

5 direct subcodes

Child Classifications

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  • B41L 39/06 for starting or stopping operation of sheet or web feed
  • B41L 39/08 for starting or stopping operation of cylinders
  • B41L 39/10 for starting or stopping operation of damping or inking units
  • B41L 39/12 for starting or stopping the machines as a whole
  • B41L 39/14 Automatic control of tripping devices by feelers, photoelectric devices, pneumatic devices, or other detectors

Top Applicants

Top 10 applicants by patent filingsfor 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