CPC Subgroup
B41J 5/22 Interlocks between keys, e.g. without detent arrangements
Full Title
Devices or arrangements for controlling character selection (methods or arrangements for sensing record carriers G06K7/00) > Character or syllable selected by means of keys or keyboards of the typewriter type > Locks > Interlocks between keys, e.g. without detent arrangements
1 direct subcode
Child Classifications
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- B41J 5/24 with detent arrangements
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