CPC Main Group
B41J 21/00 Column, tabular or like printing arrangements; Means for centralising short lines (carriage-release mechanisms B41J19/66)
10 direct subcodes
Child Classifications
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- B41J 21/02 Stops or stop-racks
- B41J 21/04 Mechanisms for setting or restoring tabulation stops
- B41J 21/06 with means for preventing rebound from stops
- B41J 21/08 Mechanisms for initiating, effecting, skipping, or stopping tabulation movement; Means for centralising short lines
- B41J 21/10 with central, counter, or equivalent stop projected into path of tabulation stops
- B41J 21/12 characterised by arrangements of electrical contacts
- B41J 21/14 characterised by denominational arrangements
- B41J 21/16 controlled by the sensing of marks or formations on the paper being typed, an undersheet, or the platen
- B41J 21/17 controlled by stored information
- B41J 21/18 characterised by applications of scales or indicators
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