G03G 2215/02
Arrangements for laying down a uniform charge
G03G2215/02 (Arrangements for laying down a uniform charge) appears on 750 US grants and 585 published applications in this corpus.
Search patents in G03G- Granted patents
- 750
- Published applications
- 585
- Assignees
- 78
- Inventors
- 1,367
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 13 | 0 |
| 1996 | 15 | 0 |
| 1997 | 25 | 0 |
| 1998 | 33 | 0 |
| 1999 | 32 | 0 |
| 2000 | 30 | 0 |
| 2001 | 34 | 19 |
| 2002 | 37 | 31 |
| 2003 | 33 | 23 |
| 2004 | 18 | 24 |
| 2005 | 22 | 35 |
| 2006 | 31 | 35 |
| 2007 | 26 | 50 |
| 2008 | 27 | 56 |
| 2009 | 29 | 46 |
| 2010 | 56 | 47 |
| 2011 | 36 | 31 |
| 2012 | 40 | 18 |
| 2013 | 25 | 15 |
| 2014 | 28 | 5 |
| 2015 | 12 | 5 |
| 2016 | 6 | 8 |
| 2017 | 14 | 9 |
| 2018 | 9 | 22 |
| 2019 | 21 | 11 |
| 2020 | 14 | 15 |
| 2021 | 9 | 6 |
| 2022 | 6 | 6 |
| 2023 | 4 | 18 |
| 2024 | 13 | 23 |
| 2025 | 25 | 11 |
| 2026 | 6 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image-forming apparatus generating electrical discharge upstream of transfer portion22 Sep 2026US 12,743,041 B2Canon Kabushiki Kaisha
- Image forming apparatus15 Sep 2026US 12,736,891 B2KYOCERA Document Solutions Inc.
- Image forming apparatus18 Aug 2026US 12,710,705 B2Canon Kabushiki Kaisha
- Electrophotographic roller, process cartridge, electrophotographic image forming apparatus, and method for manufacturing electrophotographic roller11 Aug 2026US 12,704,799 B2Canon Kabushiki Kaisha
- Developing cartridge including electrical contact surface positioned away from developing roller11 Aug 2026US 12,704,800 B2Brother Kogyo Kabushiki Kaisha
- Charging device and image forming apparatus1 Oct 2026US 2026/0299455 A1FUJIFILM Business Innovation Corp.
- Charging device and image forming apparatus1 Oct 2026US 2026/0299456 A1FUJIFILM Business Innovation Corp.
- Charging device and image forming apparatus1 Oct 2026US 2026/0299458 A1FUJIFILM Business Innovation Corp.
- Cleaning apparatus and image forming apparatus27 Aug 2026US 2026/0251995 A1KYOCERA Document Solutions Inc.
- Image forming unit, process cartridge, and image forming apparatus23 Jul 2026US 2026/0211353 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and process cartridge comprising cartridge drum positioning portion or recess242US 6,608,980 B2Canon Kabushiki Kaisha · 2003
- Process cartridge, method for assembling process cartridge and image forming appararatus167US 5,500,714 ACanon Kabushiki Kaisha · 1996
- Process cartridge remanufacturing method145US 6,931,226 B2Canon Kabushiki Kaisha · 2005
- Process cartridge, method for assembling process cartridge and image forming apparatus138US 5,543,898 ACanon Kabushiki Kaisha · 1996
- Process cartridge and image forming apparatus having particular arrangement of electrical contacts128US 6,128,452 ACanon Kabushiki Kaisha · 2000