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DIFF Subgroup
B41L 47/12

Auxiliary devices, e.g. for flattening plates, for assembling plates in predetermined order, for wetting stencils

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Details of addressing machines or like series-printing machines > Auxiliary devices, e.g. for flattening plates, for assembling plates in predetermined order, for wetting stencils

CPC:

Details of addressographs or like series-printing machines (common details of printing machines B41F21/00 - B41F35/00) > Auxiliary devices, e.g. for flattening plates, for assembling plates in predetermined order, for wetting stencils

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class B41,2013–2023, worldwide · Source: EPO PATSTAT

  1. SEIKO EPSON CORPORATION 14,672
  2. CANON 14,153
  3. RICOH COMPANY 8,049
  4. SEIKO EPSON CORPORATION JP 8,044
  5. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,312
  6. BROTHER INDUSTRIES 6,887
  7. KYOCERA DOCUMENT SOLUTIONS 5,463
  8. CANON JP 5,001
  9. KONICA MINOLTA CORPORATION 4,512
  10. BROTHER INDUSTRIES JP 3,681

Top Applicants (CPC)

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