B41J 2/14056
Plural heating elements per ink chamber
Official title: {Plural heating elements per ink chamber}
B41J2/14056 (Plural heating elements per ink chamber) appears on 211 US grants and 177 published applications in this corpus.
Search patents in B41J- Granted patents
- 211
- Published applications
- 177
- Assignees
- 35
- Inventors
- 331
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 13 | 0 |
| 2001 | 18 | 4 |
| 2002 | 24 | 12 |
| 2003 | 7 | 10 |
| 2004 | 8 | 12 |
| 2005 | 7 | 13 |
| 2006 | 9 | 16 |
| 2007 | 12 | 15 |
| 2008 | 7 | 14 |
| 2009 | 8 | 7 |
| 2010 | 7 | 5 |
| 2011 | 10 | 3 |
| 2012 | 4 | 0 |
| 2013 | 3 | 2 |
| 2014 | 3 | 2 |
| 2015 | 1 | 4 |
| 2016 | 5 | 7 |
| 2017 | 7 | 9 |
| 2018 | 5 | 13 |
| 2019 | 12 | 10 |
| 2020 | 15 | 5 |
| 2021 | 2 | 5 |
| 2022 | 4 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recording element substrate and recording device20 Jan 2026US 12,528,290 B2Canon Kabushiki Kaisha
- Die for a printhead9 May 2023US 11,642,884 B2Hewlett-Packard Development Company, L. P.
- MEMS jetting structure for dense packing16 Aug 2022US 11,413,869 B2FUJIFILM Dimatix, Inc.
- Fluid ejection with micropumps and pressure-difference based fluid flow5 Jul 2022US 11,376,862 B2Hewlett-Packard Development Company, L. P.
- Die for a printhead8 Mar 2022US 11,267,243 B2Hewlett-Packard Development Company, L. P.
- Liquid ejection board, and inkjet recording apparatus10 Sep 2026US 2026/0264399 A1Canon Kabushiki Kaisha
- Liquid ejection head and liquid ejection apparatus19 Mar 2026US 2026/0077591 A1
- Composite board package structure19 Mar 2026US 2026/0082480 A1Tong Hsing Electronic Industries, Ltd.
- Liquid ejection head, liquid ejection apparatus, and method of manufacturing liquid ejection head12 Mar 2026US 2026/0070333 A1Canon Kabushiki Kaisha
- Liquid ejection device and liquid ejection head19 Feb 2026US 2026/0048587 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Ink jet print device and print head or print apparatus using the same348US 6,019,457 ACanon Information Systems Research Australia Pty. Ltd. · 2000
- Method of fabricating bubblejet print devices using semiconductor fabrication techniques311US 5,841,452 ACanon Information Systems Research Australia Pty. Ltd. · 1998
- Valve assembly for controlling fluid flow within an ink-jet pen102US 5,838,351 AHewlett-Packard Company · 1998
- Ink jet head, ink jet head cartridge and ink jet apparatus91US 5,731,828 ACanon Kabushiki Kaisha · 1998
- Nozzle structures for bubblejet print devices88US 5,815,173 ACanon Kabushiki Kaisha · 1998