B41J 2/0458
Controlling heads based on heating elements forming bubbles
Official title: {controlling heads based on heating elements forming bubbles}
B41J2/0458 (Controlling heads based on heating elements forming bubbles) appears on 2,648 US grants and 2,323 published applications in this corpus.
Search patents in B41J- Granted patents
- 2,648
- Published applications
- 2,323
- Assignees
- 167
- Inventors
- 2,301
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 19 | 0 |
| 1993 | 8 | 0 |
| 1994 | 19 | 0 |
| 1995 | 19 | 0 |
| 1996 | 38 | 0 |
| 1997 | 39 | 0 |
| 1998 | 60 | 0 |
| 1999 | 61 | 0 |
| 2000 | 85 | 0 |
| 2001 | 112 | 30 |
| 2002 | 121 | 106 |
| 2003 | 123 | 89 |
| 2004 | 86 | 157 |
| 2005 | 68 | 193 |
| 2006 | 106 | 116 |
| 2007 | 121 | 131 |
| 2008 | 134 | 170 |
| 2009 | 112 | 163 |
| 2010 | 170 | 128 |
| 2011 | 137 | 56 |
| 2012 | 87 | 50 |
| 2013 | 56 | 53 |
| 2014 | 68 | 49 |
| 2015 | 69 | 56 |
| 2016 | 62 | 49 |
| 2017 | 62 | 82 |
| 2018 | 72 | 84 |
| 2019 | 83 | 70 |
| 2020 | 82 | 111 |
| 2021 | 81 | 122 |
| 2022 | 78 | 69 |
| 2023 | 57 | 62 |
| 2024 | 56 | 51 |
| 2025 | 34 | 32 |
| 2026 | 23 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Bubble jet recording method and apparatus in which a heating element generates bubbles in a liquid flow path to project droplets2,047US 4,723,129 ACanon Kabushiki Kaisha · 1988
- Droplet generating method and apparatus thereof1,847US 4,463,359 ACanon Kabushiki Kaisha · 1984
- Bubble jet recording method and apparatus in which a heating element generates bubbles in multiple liquid flow paths to project droplets1,733US 4,740,796 ACanon Kabushiki Kaisha · 1988
- Ink jet recording method1,590US 4,345,262 ACanon Kabushiki Kaisha · 1982
- Liquid jet recording process and liquid jet recording head1,557US 4,313,124 ACanon Kabushiki Kaisha · 1982