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CPC Subgroup
B41L 27/04

Ducts, containers, or supply devices or ink-level control devices (level control in general G05D9/00)

Full Title

Inking arrangements or devices (inking units for stencilling apparatus B41L13/18; applying liquids or other fluent materials to surfaces, in general B05) > Ducts, containers, or supply devices or ink-level control devices (level control in general G05D9/00)

5 direct subcodes

Child Classifications

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  • B41L 27/06 Duct blades or like supply devices
  • B41L 27/08 Troughs or like reservoirs with immersed, or partly immersed rollers
  • B41L 27/10 with ink-ejecting means, e.g. pumps
  • B41L 27/16 Messenger or other moving transfer 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