Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Main Group
B41L 35/00

Cylinders for apparatus or machines for manifolding, duplicating, or printing for office or other commercial purposes

Introduced: September 1968

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

  • B41L 35/10 Impression cylinders IPC+CPC Available in IPC and CPC
  • B41L 35/12 Bearings or supports for forme, offset, or transfer or impression cylinders IPC+CPC Available in IPC and CPC
  • B41L 35/14 Means for heating or cooling forme or impression cylinders IPC+CPC Available in IPC and CPC
  • B41L 35/34 Guards or covers, e.g. for safety purposes, for preventing egress or ingress of foreign matter IPC+CPC Available in 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