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PCE
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DIFF Subgroup
B41J 19/74

with special means to maintain character-spacing or back- spacing elements in engagement during case-shift or like movement

Introduced: September 1968

Title

Titles differ between systems:

IPC: with special means to maintain character-spacing or back-spacing elements in engagement during case-shift or like movement

CPC: with special means to maintain character-spacing or back- spacing elements in engagement during case-shift or like movement

Full Title

Full titles differ between systems:

IPC:

Character- or line-spacing mechanisms > Character-spacing or back-spacing mechanisms; Carriage-return or release devices therefor > with special means to maintain character-spacing or back-spacing elements in engagement during case-shift or like movement

CPC:

Character- or line-spacing mechanisms > Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor > with special means to maintain character-spacing or back- spacing elements in engagement during case-shift or like movement

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class B41,2013–2023, worldwide · Source: EPO PATSTAT

  1. SEIKO EPSON CORPORATION 14,672
  2. CANON 14,153
  3. RICOH COMPANY 8,049
  4. SEIKO EPSON CORPORATION JP 8,044
  5. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,312
  6. BROTHER INDUSTRIES 6,887
  7. KYOCERA DOCUMENT SOLUTIONS 5,463
  8. CANON JP 5,001
  9. KONICA MINOLTA CORPORATION 4,512
  10. BROTHER INDUSTRIES JP 3,681

Top Applicants (CPC)

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