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CPC Subgroup
B41B 23/06

for correcting texts by removing incorrect lines from one film and splicing-in corrected lines from another film

Full Title

Auxiliary devices for modifying, mixing or correcting text or layout in connection with photographic or photoelectronic composing > for correcting texts by removing incorrect lines from one film and splicing-in corrected lines from another film

Filing statistics

CPC B41B 23/06 belongs to the parent subclass B41B, which recorded 45 patent applications worldwide between 2013 and 2023. Annual filings grew from 2 in 2013 to 3 in 2022 (+50%), peaking at 16 applications in 2017. 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

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