B41J 2/14032
Structure of the pressure chamber
Official title: {Structure of the pressure chamber}
B41J2/14032 (Structure of the pressure chamber) appears on 1,839 US grants and 1,659 published applications in this corpus.
Search patents in B41J- Granted patents
- 1,839
- Published applications
- 1,659
- Assignees
- 113
- Inventors
- 1,709
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 16 | 0 |
| 1996 | 12 | 0 |
| 1997 | 14 | 0 |
| 1998 | 33 | 0 |
| 1999 | 35 | 0 |
| 2000 | 66 | 0 |
| 2001 | 92 | 18 |
| 2002 | 111 | 93 |
| 2003 | 88 | 70 |
| 2004 | 64 | 84 |
| 2005 | 45 | 56 |
| 2006 | 60 | 81 |
| 2007 | 53 | 102 |
| 2008 | 59 | 98 |
| 2009 | 73 | 108 |
| 2010 | 83 | 85 |
| 2011 | 106 | 34 |
| 2012 | 61 | 40 |
| 2013 | 46 | 42 |
| 2014 | 52 | 32 |
| 2015 | 48 | 47 |
| 2016 | 36 | 47 |
| 2017 | 40 | 92 |
| 2018 | 72 | 88 |
| 2019 | 97 | 78 |
| 2020 | 79 | 77 |
| 2021 | 60 | 57 |
| 2022 | 51 | 49 |
| 2023 | 52 | 49 |
| 2024 | 35 | 51 |
| 2025 | 24 | 30 |
| 2026 | 26 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ink jet recording method and ink jet recording apparatus6 Oct 2026US 12,752,529 B2Canon Kabushiki Kaisha
- Liquid ejecting head and liquid ejecting apparatus15 Sep 2026US 12,734,802 B2Canon Kabushiki Kaisha
- System and method for applying primer to media in inkjet printers15 Sep 2026US 12,734,828 B2Xerox Corporation
- Liquid ejection head and liquid ejection apparatus1 Sep 2026US 12,722,390 B2Canon Kabushiki Kaisha
- Liquid ejection head18 Aug 2026US 12,709,103 B2Canon Kabushiki Kaisha
- Liquid discharge head1 Oct 2026US 2026/0296015 A1Canon Kabushiki Kaisha
- Liquid ejection board, and inkjet recording apparatus10 Sep 2026US 2026/0264399 A1Canon Kabushiki Kaisha
- Liquid supply apparatus and liquid ejection apparatus27 Aug 2026US 2026/0249610 A1Seiko Epson Corporation
- Liquid discharge head and liquid discharge apparatus20 Aug 2026US 2026/0241694 A1Canon Kabushiki Kaisha
- Manufacturing method for semiconductor substrate, manufacturing method for liquid ejection head, semiconductor substrate, and liquid ejection head13 Aug 2026US 2026/0233519 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Liquid jet recording device1,518US 4,459,600 ACanon Kabushiki Kaisha · 1984
- 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
- Ink delivery system for an inkjet printhead237US 5,278,584 AHewlett-Packard Company · 1994
- Inkjet printhead assembly having very high nozzle packing density218US 6,543,879 B1Hewlett-Packard Company · 2003