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)
Filing statistics
CPC B41F 33/00 belongs to the parent subclass B41F, which recorded 35,385 patent applications worldwide between 2013 and 2023. Annual filings declined from 2,658 in 2013 to 2,637 in 2023 (-1%), peaking at 4,409 applications in 2018. The most active applicants in class B41 are SEIKO EPSON CORPORATION (8,446 applications), SEIKO EPSON CORPORATION (8,438 applications) and HEWLETT-PACKARD DEVELOPMENT COMPANY (7,828 applications).
Source: EPO PATSTAT, worldwide filings
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