CPC Main Group
B41M 5/00 Duplicating or marking methods; Sheet materials for use therein (by using light-sensitive materials G03; electrography, magnetography G03G )
Filing statistics
CPC B41M 5/00 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
14 direct subcodes
Child Classifications
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- B41M 5/025 by transferring ink from the master sheet
- B41M 5/10 by using carbon paper or the like
- B41M 5/124 using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M 5/20 using electric current (B41M5/24 takes precedence )
- B41M 5/24 Ablative recording, e.g. by burning marks; Spark recording
- B41M 5/26 Thermography (B41M5/20, B41M5/24 take precedence);
- B41M 5/50 Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
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