CPC Subgroup
B41J 23/20 Fluid-pressure power drives
Full Title
Power drives for actions or mechanisms (B41J9/00 take precedence) > Fluid-pressure power drives
Filing statistics
CPC B41J 23/20 belongs to the parent subclass B41J, which recorded 118,311 patent applications worldwide between 2013 and 2023. Annual filings declined from 9,148 in 2013 to 8,613 in 2023 (-6%), peaking at 12,968 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
5 direct subcodes
Child Classifications
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- B41J 23/22 for key or like type selection
- B41J 23/24 for impression mechanisms
- B41J 23/26 for platen or carriage movements, e.g. for line spacing, letter spacing, or carriage return
- B41J 23/28 for type-carriage movements
- B41J 23/30 for case shift
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