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