B41J 25/34
Bodily-changeable print heads or carriages
B41J25/34 (Bodily-changeable print heads or carriages) appears on 977 US grants and 804 published applications in this corpus.
Search patents in B41J- Granted patents
- 977
- Published applications
- 804
- Assignees
- 175
- Inventors
- 1,296
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 13 | 0 |
| 1986 | 7 | 0 |
| 1987 | 10 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 6 | 0 |
| 1995 | 12 | 0 |
| 1996 | 15 | 0 |
| 1997 | 19 | 0 |
| 1998 | 23 | 0 |
| 1999 | 28 | 0 |
| 2000 | 34 | 0 |
| 2001 | 37 | 6 |
| 2002 | 17 | 8 |
| 2003 | 13 | 7 |
| 2004 | 11 | 45 |
| 2005 | 12 | 95 |
| 2006 | 32 | 23 |
| 2007 | 43 | 26 |
| 2008 | 58 | 68 |
| 2009 | 29 | 34 |
| 2010 | 59 | 41 |
| 2011 | 49 | 20 |
| 2012 | 22 | 21 |
| 2013 | 30 | 20 |
| 2014 | 18 | 18 |
| 2015 | 26 | 26 |
| 2016 | 28 | 22 |
| 2017 | 22 | 42 |
| 2018 | 36 | 42 |
| 2019 | 42 | 35 |
| 2020 | 29 | 46 |
| 2021 | 51 | 31 |
| 2022 | 16 | 17 |
| 2023 | 22 | 40 |
| 2024 | 20 | 26 |
| 2025 | 20 | 23 |
| 2026 | 16 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for positioning printheads of a printing apparatus6 Oct 2026US 12,752,555 B2Cryovac, Inc.
- Assembly method for liquid discharge device22 Sep 2026US 12,741,475 B2KYOCERA Corporation
- Printer having replaceable print head15 Sep 2026US 12,734,838 B2
- Printhead positions8 Sep 2026US 12,728,633 B2Hewlett-Packard Development Company, L. P.
- Printer having array of overlapping printheads8 Sep 2026US 12,728,654 B2Memjet Technology Limited
- Electric and hydraulic connections for printhead1 Oct 2026US 2026/0296019 A1Dover Europe SàRl
- Liquid ejection apparatus, inspection apparatus, and liquid ejection head3 Sep 2026US 2026/0257472 A1Canon Kabushiki Kaisha
- Inkjet recording apparatus3 Sep 2026US 2026/0257487 A1Keyence Corporation
- Printing apparatus3 Sep 2026US 2026/0257495 A1FUJIFILM Corporation
- Image recording apparatus3 Sep 2026US 2026/0257505 A1Brother Kogyo Kabushiki Kaisha
Most cited
By later US patents
- Printhead having memory element475US 5,049,898 AHewlett-Packard Company · 1991
- Printer ink cartridge with memory storage capacity338US 5,610,635 AEncad, Inc. · 1997
- Unit print head assembly for ink-jet printing275US 5,565,900 AHewlett-Packard Company · 1996
- Replaceable ink cartridge having surface wiring resistance pattern271US 5,506,611 ACanon Kabushiki Kaisha · 1996
- Apparatus controlled by data from consumable parts with incorporated memory devices266US 5,812,156 AHewlett-Packard Company · 1998