B41J 2/1601
Production of bubble jet print heads
Official title: {Production of bubble jet print heads (B41J2/1606, B41J2/162 take precedence)}
B41J2/1601 (Production of bubble jet print heads) appears on 2,813 US grants and 2,393 published applications in this corpus.
Search patents in B41J- Granted patents
- 2,813
- Published applications
- 2,393
- Assignees
- 153
- Inventors
- 1,949
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 8 | 0 |
| 1987 | 13 | 0 |
| 1988 | 9 | 0 |
| 1989 | 17 | 0 |
| 1990 | 24 | 0 |
| 1991 | 23 | 0 |
| 1992 | 30 | 0 |
| 1993 | 27 | 0 |
| 1994 | 19 | 0 |
| 1995 | 24 | 0 |
| 1996 | 29 | 0 |
| 1997 | 53 | 0 |
| 1998 | 63 | 0 |
| 1999 | 76 | 0 |
| 2000 | 85 | 0 |
| 2001 | 102 | 23 |
| 2002 | 108 | 120 |
| 2003 | 121 | 114 |
| 2004 | 94 | 173 |
| 2005 | 99 | 166 |
| 2006 | 130 | 184 |
| 2007 | 126 | 181 |
| 2008 | 120 | 148 |
| 2009 | 146 | 210 |
| 2010 | 154 | 150 |
| 2011 | 160 | 85 |
| 2012 | 141 | 78 |
| 2013 | 89 | 92 |
| 2014 | 87 | 64 |
| 2015 | 99 | 59 |
| 2016 | 64 | 79 |
| 2017 | 69 | 63 |
| 2018 | 56 | 79 |
| 2019 | 72 | 58 |
| 2020 | 56 | 62 |
| 2021 | 60 | 40 |
| 2022 | 40 | 48 |
| 2023 | 41 | 33 |
| 2024 | 25 | 28 |
| 2025 | 19 | 22 |
| 2026 | 19 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Manufacturing method of liquid ejection head and liquid ejection head25 Aug 2026US 12,715,215 B2Canon Kabushiki Kaisha
- Method for manufacturing liquid ejection head and liquid ejection head25 Aug 2026US 12,715,216 B2Canon Kabushiki Kaisha
- Substrate for liquid ejection head, liquid ejection head, and method for manufacturing substrate for liquid ejection head18 Aug 2026US 12,709,096 B2Canon Kabushiki Kaisha
- Liquid discharge head substrate, liquid discharge head, liquid discharge apparatus, and manufacturing method of liquid discharge head substrate7 Jul 2026US 12,673,492 B2Canon Kabushiki Kaisha
- Liquid ejection head23 Jun 2026US 12,661,884 B2Canon Kabushiki Kaisha
- Molded fluidic dies8 Oct 2026US 2026/0307388 A1Hewlett-Packard Development Company, L. P.
- Liquid ejection unit and method for manufacturing liquid ejection unit8 Oct 2026US 2026/0307389 A1Canon Kabushiki Kaisha
- Patterned print heads and resistive anodes for electrodeposition thickness distribution control3 Sep 2026US 2026/0257478 A1Lam Research Corporation
- Method of manufacturing liquid discharge head, and liquid discharge head27 Aug 2026US 2026/0249613 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 head1,616US 4,558,333 ACanon Kabushiki Kaisha · 1985
- Polymer-based micromachining for microfluidic devices351US 6,136,212 AThe Regents of the University of Michigan · 2000
- 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
- Electrohydrodynamic receptor288US 5,980,719 ASarnoff Corporation · 1999