G03G 2221/1639
For the fixing unit
Official title: for the fixing unit
G03G2221/1639 (For the fixing unit) appears on 298 US grants and 254 published applications in this corpus.
Search patents in G03G- Granted patents
- 298
- Published applications
- 254
- Assignees
- 54
- Inventors
- 608
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 12 | 4 |
| 2002 | 7 | 9 |
| 2003 | 4 | 6 |
| 2004 | 8 | 9 |
| 2005 | 6 | 7 |
| 2006 | 2 | 8 |
| 2007 | 12 | 17 |
| 2008 | 5 | 13 |
| 2009 | 7 | 19 |
| 2010 | 16 | 16 |
| 2011 | 13 | 20 |
| 2012 | 17 | 7 |
| 2013 | 21 | 2 |
| 2014 | 5 | 4 |
| 2015 | 7 | 5 |
| 2016 | 8 | 7 |
| 2017 | 11 | 8 |
| 2018 | 8 | 15 |
| 2019 | 15 | 5 |
| 2020 | 5 | 5 |
| 2021 | 3 | 4 |
| 2022 | 8 | 8 |
| 2023 | 6 | 9 |
| 2024 | 4 | 7 |
| 2025 | 9 | 20 |
| 2026 | 9 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus28 Jul 2026US 12,693,619 B2FUJIFILM Business Innovation Corp.
- Fixation device and image formation apparatus14 Jul 2026US 12,681,411 B2Oki Electric Industry Co., Ltd.
- Fixing apparatus having uniform surface potential difference between fixing film and pressure roller and image forming apparatus thereof14 Jul 2026US 12,681,414 B2Canon Kabushiki Kaisha
- Image forming device including switch switching according to whether fixing device is mounted or removed30 Jun 2026US 12,669,768 B2Brother Kogyo Kabushiki Kaisha
- Image forming apparatus having removable fixing device23 Jun 2026US 12,663,751 B2Brother Kogyo Kabushiki Kaisha
- Fixing apparatus and image forming apparatus8 Oct 2026US 2026/0310119 A1Canon Kabushiki Kaisha
- Image forming device including switch switching according to whether fixing device is mounted or removed8 Oct 2026US 2026/0310122 A1Brother Kogyo Kabushiki Kaisha
- Image forming apparatus1 Oct 2026US 2026/0299512 A1Brother Kogyo Kabushiki Kaisha
- Image forming apparatus including protrusions on main housing for restricting posture deviation of fixing device during attachment of the fixing device to the main housing24 Sep 2026US 2026/0288054 A1Brother Kogyo Kabushiki Kaisha
- Image forming apparatus17 Sep 2026US 2026/0277152 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Replaceable part with integral memory for usage, calibration and other data311US 5,835,817 AHewlett-Packard Company · 1998
- Replaceable part with integral memory for usage, calibration and other data276US 5,699,091 AHewlett-Packard Company · 1997
- Password protected memory on replaceable components for printing devices182US 6,738,903 B1Hewlett-Packard Development Company, L. P. · 2004
- Electrical and fluidic interface for an ink supply144US 6,203,147 B1Hewlett-Packard Company · 2001
- Method and apparatus for storing information on a replaceable ink container131US 6,065,824 AHewlett-Packard Company · 2000