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CPC Subgroup
B41L 1/20

Manifolding assemblies, e.g. book-like assemblies

Full Title

Devices for performing operations in connection with manifolding by means of pressure-sensitive layers or intermediaries, e.g. carbons; Accessories for manifolding purposes > Manifolding assemblies, e.g. book-like assemblies

4 direct subcodes

Child Classifications

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  • B41L 1/34 for making masters for hectographic duplicators
  • B41L 1/36 with pressure-sensitive layers or coating other than carbon (sheet materials B41M5/00)

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