DIFF Main Group
B41C 1/00 Forme preparation
Introduced: September 1968
Of 11 combined children, 9 exist in both systems.
2 codes are CPC-only extensions.
6 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B41C 1/02 Engraving; Heads therefor (recording on record carriers, heads therefor G11B) +1 CPC IPC+CPC Available in IPC and CPC
- B41C 1/055 Thermographic processes for producing printing formes (B41C1/02 takes precedence; ) since 1990 IPC+CPC Available in IPC and CPC
- B41C 1/08 by embossing, e.g. with a typewriter (typewriters adapted therefor B41J3/38) IPC+CPC Available in IPC and CPC
- B41C 1/10 for lithographic printing; Master sheets for transferring a lithographic image to the forme (neutralising or similar differentiation treatments of lithographic printing formes B41N3/08) +8 CPC IPC+CPC Available in IPC and CPC
- B41C 1/16 Formes with areas rendered ink-resistant by covering with an amalgam; Printing plates for amalgam printing IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B41,2013–2023, worldwide · Source: EPO PATSTAT
- SEIKO EPSON CORPORATION 14,672
- CANON 14,153
- RICOH COMPANY 8,049
- SEIKO EPSON CORPORATION JP 8,044
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,312
- BROTHER INDUSTRIES 6,887
- KYOCERA DOCUMENT SOLUTIONS 5,463
- CANON JP 5,001
- KONICA MINOLTA CORPORATION 4,512
- BROTHER INDUSTRIES JP 3,681
Top Applicants (CPC)
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