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DIFF Subgroup
B41F 31/38

magnetically operated

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Inking arrangements or devices > Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor > Lifting or adjusting devices > magnetically operated

CPC:

Inking arrangements or devices (inking units for platen presses B41F1/40; inking units for cylinder presses B41F3/81) > Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor > Lifting or adjusting devices (for damping rollers B41F7/40) > magnetically operated

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