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CPC Subgroup
B41L 11/02

with a flat support carrying the masters

Full Title

Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet duplicators" for producing positive copies > with a flat support carrying the masters

2 direct subcodes

Child Classifications

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  • B41L 11/04 and with carriages for feeding the sheets
  • B41L 11/06 for stack duplicating with pressure rollers

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