DIFF Subgroup
B41J 29/34 repeatedly actuated
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for > Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling > Type-members > repeatedly actuated
CPC:
Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for > Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling > Type members > repeatedly actuated
No child classifications to compare. This is a leaf node in both 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