CPC Subgroup Additional Only
B41M 2205/28 Storage stability; Improved self life
Full Title
Printing methods or features related to printing methods; Location or type of the layers > Storage stability; Improved self life
Filing statistics
CPC B41M 2205/28 belongs to the parent subclass B41M, which recorded 47,718 patent applications worldwide between 2013 and 2023. Annual filings declined from 3,806 in 2013 to 3,014 in 2023 (-21%), peaking at 5,781 applications in 2018. The most active applicants in class B41 are SEIKO EPSON CORPORATION (8,446 applications), SEIKO EPSON CORPORATION (8,438 applications) and HEWLETT-PACKARD DEVELOPMENT COMPANY (7,828 applications).
Source: EPO PATSTAT, worldwide filings
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