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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

  1. SEIKO EPSON CORPORATION 8,446
  2. SEIKO EPSON CORPORATION JP 8,438
  3. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,828
  4. CANON JP 5,419
  5. CANON 4,156
  6. BROTHER INDUSTRIES JP 3,763
  7. BROTHER INDUSTRIES 2,779
  8. RICOH COMPANY JP 2,717
  9. FUJIFILM JP 2,423
  10. RICOH COMPANY 1,739