CPC Subgroup Additional Only
B41P 2227/21 Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press
Full Title
Mounting or handling printing plates; Forming printing surfaces in situ > Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets > Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press
Top Applicants
Top 10 applicants by patent filingsfor 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