CPC Main Group
B41F 23/00 Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
6 direct subcodes
Child Classifications
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- B41F 23/02 by dampening (in rotary lithographic machines B41F7/24 )
- B41F 23/04 by heat drying, by cooling, by applying powders
- B41F 23/08 Print finishing devices, e.g. for glossing prints
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