B41L 27/12 Feed or duct rollers (messenger or moving transfer rollers B41L27/16)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Feed or duct rollers
CPC: Feed or duct rollers (messenger or moving transfer rollers B41L27/16)
Full Title
Full titles differ between systems:
Inking arrangements or devices > Ducts, containers, supply devices or ink-level control devices > Feed or duct rollers
Inking arrangements or devices (inking units for stencilling apparatus B41L13/18; applying liquids or other fluent materials to surfaces, in general B05) > Ducts, containers, or supply devices or ink-level control devices (level control in general G05D9/00) > Feed or duct rollers (messenger or moving transfer rollers B41L27/16)
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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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