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
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- 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 35/16 Cylinder-tripping devices; Cylinder impression adjustments 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
- SEIKO EPSON CORPORATION 14,672
- CANON 14,153
- RICOH COMPANY 8,049
- SEIKO EPSON CORPORATION JP 8,044
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,312
- BROTHER INDUSTRIES 6,887
- KYOCERA DOCUMENT SOLUTIONS 5,463
- CANON JP 5,001
- KONICA MINOLTA CORPORATION 4,512
- BROTHER INDUSTRIES JP 3,681
Top Applicants (CPC)
Class B41,2013–2023, worldwide · Source: EPO PATSTAT
- SEIKO EPSON CORPORATION 8,446
- SEIKO EPSON CORPORATION JP 8,438
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,828
- CANON JP 5,419
- CANON 4,156
- BROTHER INDUSTRIES JP 3,763
- BROTHER INDUSTRIES 2,779
- RICOH COMPANY JP 2,717
- FUJIFILM JP 2,423
- RICOH COMPANY 1,739