B41J 2202/17
Readable information on the head
B41J2202/17 (Readable information on the head) appears on 309 US grants and 250 published applications in this corpus.
Search patents in B41J- Granted patents
- 309
- Published applications
- 250
- Assignees
- 43
- Inventors
- 386
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 15 | 3 |
| 2002 | 24 | 29 |
| 2003 | 18 | 9 |
| 2004 | 16 | 39 |
| 2005 | 17 | 43 |
| 2006 | 29 | 18 |
| 2007 | 34 | 24 |
| 2008 | 30 | 24 |
| 2009 | 15 | 13 |
| 2010 | 18 | 6 |
| 2011 | 16 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 0 |
| 2014 | 3 | 0 |
| 2015 | 0 | 0 |
| 2016 | 2 | 3 |
| 2017 | 1 | 4 |
| 2018 | 5 | 4 |
| 2019 | 0 | 3 |
| 2020 | 3 | 3 |
| 2021 | 5 | 10 |
| 2022 | 9 | 8 |
| 2023 | 5 | 1 |
| 2024 | 5 | 3 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid ejection head and liquid ejection apparatus17 Mar 2026US 12,576,637 B2Canon Kabushiki Kaisha
- Element substrate16 Dec 2025US 12,499,955 B2Canon Kabushiki Kaisha
- Fluid ejection devices including a memory1 Oct 2024US 12,103,303 B2Hewlett-Packard Development Company, L. P.
- Element substrate23 Jul 2024US 12,046,309 B2Canon Kabushiki Kaisha
- Control device and method for controlling element substrate16 Jul 2024US 12,036,798 B2Canon Kabushiki Kaisha
- Inkjet head chip identification circuit21 Nov 2024US 2024/0383255 A1Microjet Technology Co., Ltd.
- Element substrate14 Nov 2024US 2024/0379179 A1Canon Kabushiki Kaisha
- Liquid ejection head and liquid ejection apparatus4 Jul 2024US 2024/0217234 A1Canon Kabushiki Kaisha
- Memories of fluidic dies23 Feb 2023US 2023/0057710 A1Hewlett-Packard Development Company, L. P.
- Fluid ejection devices including a memory6 Oct 2022US 2022/0314608 A1Hewlett-Packard Development Company, L. P.
Most cited
By later US patents
- Arrangement for printer equipment for monitoring reservoirs that contain printing medium284US 5,365,312 AMannesmann Aktiengesellschaft · 1994
- Integrated circuit printhead for an ink jet printer including an integrated identification circuit238US 5,363,134 AHewlett-Packard Company · 1994
- Method of controlling an ink-jet recording apparatus according to recording apparatus in which the method is implemented144US 6,050,669 ACanon Kabushiki Kaisha · 2000
- Ink jet print head identification circuit with serial out, dynamic shift registers125US 5,940,095 ALexmark International, Inc. · 1999
- Optical encoding of printhead service module114US 6,076,913 AHewlett-Packard Company · 2000