G03G 21/1666
For the exposure unit
Official title: {for the exposure unit}
G03G21/1666 (For the exposure unit) appears on 488 US grants and 502 published applications in this corpus.
Search patents in G03G- Granted patents
- 488
- Published applications
- 502
- Assignees
- 50
- Inventors
- 553
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 3 |
| 2005 | 1 | 5 |
| 2006 | 2 | 9 |
| 2007 | 6 | 13 |
| 2008 | 8 | 9 |
| 2009 | 5 | 21 |
| 2010 | 10 | 9 |
| 2011 | 13 | 19 |
| 2012 | 11 | 25 |
| 2013 | 20 | 31 |
| 2014 | 40 | 28 |
| 2015 | 49 | 43 |
| 2016 | 45 | 33 |
| 2017 | 25 | 26 |
| 2018 | 28 | 33 |
| 2019 | 29 | 30 |
| 2020 | 44 | 46 |
| 2021 | 37 | 22 |
| 2022 | 24 | 18 |
| 2023 | 18 | 22 |
| 2024 | 15 | 14 |
| 2025 | 15 | 30 |
| 2026 | 9 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image carrier unit and image forming apparatus6 Oct 2026US 12,754,492 B2FUJIFILM Business Innovation Corp.
- Image forming apparatus8 Sep 2026US 12,730,408 B2Canon Kabushiki Kaisha
- Image forming apparatus with tool for holding exposure head and the tool thereof18 Aug 2026US 12,710,721 B2Canon Kabushiki Kaisha
- Optical scanning device and image forming apparatus11 Aug 2026US 12,704,806 B2Canon Kabushiki Kaisha
- Exchanging tool and image forming apparatus14 Jul 2026US 12,681,425 B2Canon Kabushiki Kaisha
- Image forming apparatus8 Oct 2026US 2026/0310115 A1Canon Kabushiki Kaisha
- Image forming apparatus3 Sep 2026US 2026/0259517 A1Canon Kabushiki Kaisha
- Optical scanning device and image forming apparatus including same20 Aug 2026US 2026/0241708 A1KYOCERA Document Solutions Inc.
- Optical scanning device and image forming apparatus6 Aug 2026US 2026/0227721 A1
- Exposure device and image forming apparatus including exposure device4 Jun 2026US 2026/0153813 A1Sharp Kabushiki Kaisha
Most cited
By later US patents
- Process cartridge and image forming system on which process cartridge is mountable120US 5,623,328 ACanon Kabushiki Kaisha · 1997
- Process cartridge and image forming apparatus on which process cartridge is mountable116US 5,331,372 ACanon Kabushiki Kaisha · 1994
- Image bearing member having an asymmetrically weighted base, process cartridge and image forming apparatus100US 5,488,459 ACanon Kabushiki Kaisha · 1996
- Process cartridge and image forming system on which the process cartridge is mountable using a handgrip99US 5,475,470 ACanon Kabushiki Kaisha · 1995
- Image forming system having means to support at least one component of a process cartridge99US 5,669,042 ACanon Kabushiki Kaisha · 1997