B41J 2/0451
For detecting failure
Official title: {for detecting failure, e.g. clogging, malfunctioning actuator}
B41J2/0451 (For detecting failure) appears on 1,052 US grants and 1,228 published applications in this corpus.
Search patents in B41J- Granted patents
- 1,052
- Published applications
- 1,228
- Assignees
- 136
- Inventors
- 1,537
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 3 | 0 |
| 2000 | 8 | 0 |
| 2001 | 18 | 4 |
| 2002 | 24 | 18 |
| 2003 | 23 | 17 |
| 2004 | 14 | 50 |
| 2005 | 18 | 53 |
| 2006 | 27 | 40 |
| 2007 | 39 | 29 |
| 2008 | 37 | 42 |
| 2009 | 31 | 41 |
| 2010 | 47 | 39 |
| 2011 | 38 | 18 |
| 2012 | 15 | 30 |
| 2013 | 13 | 21 |
| 2014 | 39 | 31 |
| 2015 | 43 | 50 |
| 2016 | 55 | 47 |
| 2017 | 50 | 64 |
| 2018 | 37 | 50 |
| 2019 | 52 | 56 |
| 2020 | 64 | 95 |
| 2021 | 63 | 92 |
| 2022 | 65 | 71 |
| 2023 | 53 | 74 |
| 2024 | 64 | 71 |
| 2025 | 55 | 59 |
| 2026 | 34 | 66 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Printing apparatus, control method, and storage medium8 Oct 2026US 2026/0307385 A1Canon Kabushiki Kaisha
- Liquid discharge head, liquid discharge apparatus, image forming apparatus, drive circuit, and drive method1 Oct 2026US 2026/0295992 A1Ricoh Company, Ltd.
- Head Unit And Liquid Ejecting Apparatus1 Oct 2026US 2026/0296007 A1Seiko Epson Corporation
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- Liquid discharge apparatus and head unit24 Sep 2026US 2026/0285034 A1Seiko Epson Corporation
Most cited
By later US patents
- Method and system for detecting nonfunctional elements in an ink jet printer162US 6,199,969 B1Encad, Inc. · 2001
- Cache updating method and apparatus144US 7,181,572 B2Silverbrook Research Pty Ltd · 2007
- Ink jet substrate including plural temperature sensors and heaters91US 5,175,565 ACanon Kabushiki Kaisha · 1992
- Redundant nozzle dot matrix printheads and method of use91US 5,640,183 AHewlett-Packard Company · 1997
- Integrated fault tolerance in printing mechanisms90US 5,808,631 AEastman Kodak Company · 1998