CPC Subgroup
B41F 31/30 Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
Full Title
Inking arrangements or devices (inking units for platen presses B41F1/40; inking units for cylinder presses B41F3/81) > Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
4 direct subcodes
Child Classifications
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- B41F 31/32 Lifting or adjusting devices (for damping rollers B41F7/40)
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