B41J 2/14008
Structure of acoustic ink jet print heads
Official title: {Structure of acoustic ink jet print heads}
B41J2/14008 (Structure of acoustic ink jet print heads) appears on 209 US grants and 124 published applications in this corpus.
Search patents in B41J- Granted patents
- 209
- Published applications
- 124
- Assignees
- 51
- Inventors
- 273
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 8 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 9 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 12 | 0 |
| 2001 | 20 | 3 |
| 2002 | 13 | 21 |
| 2003 | 16 | 16 |
| 2004 | 9 | 10 |
| 2005 | 10 | 6 |
| 2006 | 6 | 6 |
| 2007 | 5 | 12 |
| 2008 | 7 | 3 |
| 2009 | 5 | 3 |
| 2010 | 6 | 3 |
| 2011 | 4 | 1 |
| 2012 | 1 | 3 |
| 2013 | 2 | 2 |
| 2014 | 4 | 6 |
| 2015 | 6 | 1 |
| 2016 | 2 | 5 |
| 2017 | 5 | 3 |
| 2018 | 4 | 4 |
| 2019 | 4 | 3 |
| 2020 | 2 | 2 |
| 2021 | 2 | 3 |
| 2022 | 1 | 2 |
| 2023 | 0 | 2 |
| 2024 | 7 | 3 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Circuit and method for driving a print head24 Feb 2026US 12,558,887 B2Canon Production Printing Holding B. V.
- Acoustic droplet ejection of non-newtonian fluids9 Sep 2025US 12,409,648 B2Labcyte Inc.
- Liquid droplet generation method15 Oct 2024US 12,115,786 B2Hitachi, Ltd.
- Apparatus and method for acoustophoretic printing6 Aug 2024US 12,053,984 B2President and Fellows of Harvard College
- Droplet ejection apparatus and droplet ejection method using the same2 Jul 2024US 12,023,923 B2Korea Institute of Machinery & Materials
- Acoustic droplet ejection of non-newtonian fluids27 Nov 2025US 2025/0360708 A1Labcyte Inc.
- Circuit and method for driving a print head26 Dec 2024US 2024/0424783 A1Canon Production Printing Holding B. V.
- Apparatus and method for acoustophoretic printing10 Oct 2024US 2024/0336064 A1President and Fellows of Harvard College
- Acoustic droplet ejection of non-newtonian fluids27 Jun 2024US 2024/0208210 A1Labcyte Inc.
- Liquid droplet generation method8 Jun 2023US 2023/0173807 A1Hitachi, Ltd.
Most cited
By later US patents
- Liquid drop emitter146US 4,308,547 ARecognition Equipment Incorporated · 1981
- Directional electrostatic accretion process employing acoustic droplet formation116US 5,520,715 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1996
- Print head for use in a ballistic aerosol marking apparatus106US 6,116,718 AXerox Corporation · 2000
- Multi-discrete-phase Fresnel acoustic lenses and their application to acoustic ink printing102US 5,041,849 AXerox Corporation · 1991
- Lithographically defined ejection units92US 5,565,113 AXerox Corporation · 1996