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IPC Subgroup
B41F 7/24

Damping devices

Introduced: September 1968

Last revised: January 2006

Full Title

Rotary lithographic machines > Details > Damping devices

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
Subclass:
PRINTING MACHINES OR PRESSES

9 direct subcodes

Child Classifications

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  • B41F 7/26 using transfer rollers
  • B41F 7/28 using brushes
  • B41F 7/3 using spraying elements
  • B41F 7/32 Ducts, containers, or like supply devices for liquids
  • B41F 7/34 Endless bands
  • B41F 7/36 Inking-rollers serving also to apply ink repellants
  • B41F 7/37 with supercooling for condensation of air moisture
  • B41F 7/38 Absorbent pads
  • B41F 7/4 Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor

Top Applicants

Top 10 applicants by patent filingsfor 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