G03G 2215/0648
Two or more donor members
G03G2215/0648 (Two or more donor members) appears on 108 US grants and 103 published applications in this corpus.
Search patents in G03G- Granted patents
- 108
- Published applications
- 103
- Assignees
- 24
- Inventors
- 235
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 0 |
| 2002 | 2 | 6 |
| 2003 | 2 | 5 |
| 2004 | 5 | 5 |
| 2005 | 6 | 3 |
| 2006 | 4 | 2 |
| 2007 | 5 | 10 |
| 2008 | 4 | 5 |
| 2009 | 3 | 3 |
| 2010 | 5 | 4 |
| 2011 | 3 | 15 |
| 2012 | 7 | 2 |
| 2013 | 8 | 15 |
| 2014 | 9 | 4 |
| 2015 | 8 | 3 |
| 2016 | 4 | 5 |
| 2017 | 3 | 2 |
| 2018 | 2 | 2 |
| 2019 | 2 | 3 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 3 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Developing apparatus10 Feb 2026US 12,547,102 B2Canon Kabushiki Kaisha
- Image forming apparatus1 Jul 2025US 12,346,048 B2FUJIFILM Business Innovation Corp.
- Developing device having spaced rotatable members and a developer guide portion24 Jun 2025US 12,339,598 B2Canon Kabushiki Kaisha
- Developing device, process cartridge, and image forming apparatus including an entrance seal which contacts an image bearer11 Feb 2025US 12,222,664 B2Ricoh Company, Ltd.
- Developing device and image forming apparatus22 Nov 2022US 11,506,997 B1FUJIFILM Business Innovation Corp.
- Developing apparatus21 May 2026US 2026/0140461 A1Canon Kabushiki Kaisha
- Developing apparatus and image forming apparatus26 Feb 2026US 2026/0056487 A1FUJIFILM Business Innovation Corp.
- Developing device11 Sep 2025US 2025/0284221 A1Canon Kabushiki Kaisha
- Image forming apparatus29 May 2025US 2025/0172895 A1FUJIFILM Business Innovation Corp.
- Developing device1 May 2025US 2025/0138450 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Electrophotographic apparatus26US 5,923,933 AHitachi Koki Co., Ltd. · 1999
- Developing apparatus with two developing chamber-rotatable member pairs24US 6,973,281 B2Canon Kabushiki Kaisha · 2005
- Developing device20US 7,099,609 B2Canon Kabushiki Kaisha · 2006
- Development apparatus and method using selectively applied AC voltages18US 5,911,098 AMinolta Co., Ltd. · 1999
- Developing apparatus including first and second magnets with poles arranged to supply developer without contamination17US 6,975,825 B2Canon Kabushiki Kaisha · 2005