CPC Main Group
B41F 33/00 Indicating, counting, warning, control or safety devices (arrangements of counting devices in platen presses B41F1/00 in cylinder presses B41F3/84; ink supply or metering devices B41F31/02)
13 direct subcodes
Child Classifications
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- B41F 33/02 Arrangements of indicating devices, e.g. counters
- B41F 33/04 Tripping devices or stop-motions ( ; cylinder-tripping devices of rotary presses or machines B41F13/24; arrangements for tripping inking rollers B41F31/30)
- B41F 33/16 Programming systems for automatic control of sequence of operations
- B41F 33/18 Web break detection (B41F33/04 takes precedence)
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