G03G 21/1685
For the fixing unit
Official title: {for the fixing unit}
G03G21/1685 (For the fixing unit) appears on 417 US grants and 434 published applications in this corpus.
Search patents in G03G- Granted patents
- 417
- Published applications
- 434
- Assignees
- 50
- Inventors
- 754
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 3 |
| 2003 | 4 | 5 |
| 2004 | 5 | 5 |
| 2005 | 3 | 6 |
| 2006 | 3 | 13 |
| 2007 | 9 | 9 |
| 2008 | 5 | 8 |
| 2009 | 5 | 11 |
| 2010 | 9 | 11 |
| 2011 | 11 | 15 |
| 2012 | 8 | 11 |
| 2013 | 12 | 14 |
| 2014 | 16 | 20 |
| 2015 | 26 | 18 |
| 2016 | 28 | 26 |
| 2017 | 26 | 21 |
| 2018 | 27 | 33 |
| 2019 | 29 | 16 |
| 2020 | 21 | 25 |
| 2021 | 20 | 22 |
| 2022 | 22 | 21 |
| 2023 | 22 | 32 |
| 2024 | 20 | 30 |
| 2025 | 26 | 38 |
| 2026 | 25 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus18 Aug 2026US 12,710,712 B2Brother Kogyo Kabushiki Kaisha
- Image forming apparatus28 Jul 2026US 12,693,619 B2FUJIFILM Business Innovation Corp.
- Image-forming apparatus including mechanism for maintaining opening and closing states of shutter of fixing device through urging force of urging member21 Jul 2026US 12,687,814 B2Brother Kogyo Kabushiki Kaisha
- 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
- 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
- Electronic apparatus, image forming apparatus, attachment-detachment device, and fixing device27 Aug 2026US 2026/0252027 A1Oki Electric Industry Co., Ltd.
- Image forming apparatus30 Jul 2026US 2026/0219607 A1Sharp Kabushiki Kaisha
- Fixing device and image forming apparatus9 Jul 2026US 2026/0194851 A1
Most cited
By later US patents
- Electrostatic recording apparatus56US 4,760,411 AKonishiroku Photo Industry Co., Ltd. · 1988
- Image forming apparatus including detachable toner fixing unit44US 4,965,640 AFujitsu Limited · 1990
- Image forming apparatus with removeable fixing unit32US 5,579,098 ACanon Kabushiki Kaisha · 1996
- Heating apparatus with mechanical attachment32US 7,235,761 B1Lexmark International, Inc. · 2007
- Image forming apparatus with fixing unit having a shutter for covering same27US 6,754,458 B2Canon Kabushiki Kaisha · 2004