DIFF Subgroup
B41J 19/80 Pawl-and-ratchet mechanisms
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Character- or line-spacing mechanisms > Line-spacing mechanisms > Positive-feed mechanisms > Pawl-and-ratchet mechanisms
CPC:
Character- or line-spacing mechanisms > Line-spacing mechanisms (special line-feeds, e.g. long feeds B41J11/36) > Positive-feed mechanisms > Pawl-and-ratchet mechanisms
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
Child Classifications
Navigate with arrow keys, Enter to open
- B41J 19/90 moving a paper or like web or strip, e.g. over a stationary support, automatically in response to movements other than carriage return 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