CPC Subgroup Additional Only
B41P 2231/20 Recovering printing ink
Full Title
Inking devices; Recovering printing ink > Recovering printing ink
1 direct subcode
Child Classifications
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- B41P 2231/21 by using mixtures of ink and water or repellant
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