B41J 2/41
For electrostatic printing
Official title: for electrostatic printing (B41J2/39 takes precedence)
B41J2/41 (For electrostatic printing) appears on 410 US grants and 97 published applications in this corpus.
Search patents in B41J- Granted patents
- 410
- Published applications
- 97
- Assignees
- 82
- Inventors
- 493
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 9 | 0 |
| 1986 | 1 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 10 | 0 |
| 1991 | 17 | 0 |
| 1992 | 17 | 0 |
| 1993 | 18 | 0 |
| 1994 | 14 | 0 |
| 1995 | 14 | 0 |
| 1996 | 14 | 0 |
| 1997 | 18 | 0 |
| 1998 | 27 | 0 |
| 1999 | 33 | 0 |
| 2000 | 46 | 0 |
| 2001 | 33 | 2 |
| 2002 | 22 | 13 |
| 2003 | 13 | 8 |
| 2004 | 4 | 3 |
| 2005 | 2 | 5 |
| 2006 | 4 | 4 |
| 2007 | 3 | 2 |
| 2008 | 1 | 4 |
| 2009 | 1 | 2 |
| 2010 | 6 | 1 |
| 2011 | 2 | 2 |
| 2012 | 1 | 4 |
| 2013 | 3 | 6 |
| 2014 | 7 | 5 |
| 2015 | 3 | 4 |
| 2016 | 5 | 3 |
| 2017 | 4 | 9 |
| 2018 | 8 | 3 |
| 2019 | 4 | 4 |
| 2020 | 5 | 3 |
| 2021 | 2 | 1 |
| 2022 | 0 | 6 |
| 2023 | 0 | 0 |
| 2024 | 4 | 3 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Continuous ink jet printer and print head assembly therefor25 Feb 2025US 12,233,646 B2Linx Printing Technologies Limited
- Image formation with electroosmotic liquid removal25 Jun 2024US 12,017,468 B2Hewlett-Packard Development Company, L. P.
- Electrostatic printing of cyclodextrin compositions28 May 2024US RE49,985 E1Verdant Technologies, LLC
- Image formation medium assembly with resin14 May 2024US 11,981,149 B2Hewlett-Packard Development Company, L. P.
- Image formation device with radiation fixation30 Jan 2024US 11,884,058 B2Hewlett-Packard Development Company, L. P.
- Electrostatic Printing of Cyclodextrin Compositions19 Dec 2024US 2024/0415783 A1Verdant Technologies, LLC
- Electrostatic Printing of Cyclodextrin Compositions1 Aug 2024US 2024/0252448 A1Verdant Technologies, LLC
- Image formation with electroosmotic liquid removal21 Mar 2024US 2024/0092104 A1Hewlett-Packard Development Company, L. P.
- Toner transfer device22 Dec 2022US 2022/0404733 A1Hewlett-Packard Development Company, L. P.
- Image formation device with radiation fixation24 Nov 2022US 2022/0371339 A1Hewlett-Packard Development Company, L. P.
Most cited
By later US patents
- Image forming device having sheet conveyance device126US 5,473,352 ABrother Kogyo Kabushiki Kaisha · 1995
- Method for producing a latent electric charge pattern and a device for performing the method114US 5,036,341 AOve Larsson Production AB · 1991
- Direct write# system110US 7,658,163 B2Optomec Design Company · 2010
- Image recording method and apparatus99US 4,491,855 ACanon Kabushiki Kaisha · 1985
- High precision charge imaging cartridge96US 5,315,324 ADelphax Systems · 1994