B41J 2/2142
Detection of malfunctioning nozzles
Official title: {Detection of malfunctioning nozzles (generating single droplets or particles on demand by pressure, e.g. electromechanical transducers B41J2/045, B41J2/05; jet deflection sensors B41J2/125; for cleaning purposes B41J2/16579)}
B41J2/2142 (Detection of malfunctioning nozzles) appears on 672 US grants and 835 published applications in this corpus.
Search patents in B41J- Granted patents
- 672
- Published applications
- 835
- Assignees
- 119
- Inventors
- 1,204
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 1 |
| 2003 | 2 | 3 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 8 |
| 2008 | 2 | 23 |
| 2009 | 3 | 30 |
| 2010 | 15 | 26 |
| 2011 | 20 | 25 |
| 2012 | 19 | 42 |
| 2013 | 29 | 35 |
| 2014 | 44 | 39 |
| 2015 | 62 | 52 |
| 2016 | 51 | 45 |
| 2017 | 54 | 50 |
| 2018 | 34 | 42 |
| 2019 | 36 | 44 |
| 2020 | 46 | 49 |
| 2021 | 33 | 55 |
| 2022 | 35 | 49 |
| 2023 | 57 | 87 |
| 2024 | 42 | 61 |
| 2025 | 53 | 43 |
| 2026 | 31 | 23 |
By publication year. 2026 runs to 8 Oct.
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- System and method for monitoring normal ejection of inkjet ink droplets using image registration accuracy23 Jul 2026US 2026/0208496 A1Pukyong National University Industry-University Cooperation Foundation
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Most cited
By later US patents
- System for detecting inoperative inkjets in printheads ejecting clear ink using heated thermal substrates38US 9,114,652 B1Xerox Corporation · 2015
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- Fast measurement of droplet parameters in industrial printing system25US 9,832,428 B2Kateeva, Inc. · 2017
- Liquid discharging apparatus, method of controlling the same, and program that implements the method23US 8,033,634 B2Seiko Epson Corporation · 2011
- Printing apparatus and processing method thereof21US 8,845,060 B2Canon Kabushiki Kaisha · 2014