CPC Main Group
B41F 31/00 Inking arrangements or devices (inking units for platen presses B41F1/40; inking units for cylinder presses B41F3/81)
16 direct subcodes
Child Classifications
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- B41F 31/02 Ducts, containers, supply or metering devices
- B41F 31/15 Devices for moving vibrator-rollers
- B41F 31/16 Continuous, e.g. endless, band apparatus
- B41F 31/18 for inking selected parts of printing formes
- B41F 31/20 Ink-removing or collecting devices
- B41F 31/22 for inking from interior of cylinder
- B41F 31/24 Absorbent pads
- B41F 31/26 Construction of inking rollers (inking-rollers serving also to apply ink repellants in rotary lithographic machines B41F7/36)
- B41F 31/28 Spray apparatus
- B41F 31/30 Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
Top Applicants
Top 10 applicants by patent filingsfor class B41, 2013–2023, worldwide · Source: EPO PATSTAT
- SEIKO EPSON CORPORATION 8,446
- SEIKO EPSON CORPORATION JP 8,438
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,828
- CANON JP 5,419
- CANON 4,156
- BROTHER INDUSTRIES JP 3,763
- BROTHER INDUSTRIES 2,779
- RICOH COMPANY JP 2,717
- FUJIFILM JP 2,423
- RICOH COMPANY 1,739