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CPC Main Group Additional Only
B41C 2210/00

Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation

12 direct subcodes

Child Classifications

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  • B41C 2210/02 Positive working, i.e. the exposed (imaged) areas are removed
  • B41C 2210/04 Negative working, i.e. the non-exposed (non-imaged) areas are removed
  • B41C 2210/06 Developable by an alkaline solution
  • B41C 2210/08 Developable by water or the fountain solution
  • B41C 2210/10 Developable by an acidic solution
  • B41C 2210/12 Developable by an organic solution
  • B41C 2210/14 Multiple imaging layers
  • B41C 2210/16 Waterless working, i.e. ink repelling exposed (imaged) or non-exposed (non-imaged) areas, not requiring fountain solution or water, e.g. dry lithography or driography
  • B41C 2210/20 characterised by inorganic additives, e.g. pigments, salts
  • B41C 2210/22 characterised by organic non-macromolecular additives, e.g. dyes, UV-absorbers, plasticisers
  • B41C 2210/24 characterised by a macromolecular compound or binder obtained by reactions involving carbon-to-carbon unsaturated bonds, e.g. acrylics, vinyl polymers

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