G03G 2215/0636
Specific type of dry developer device
G03G2215/0636 (Specific type of dry developer device) appears on 486 US grants and 236 published applications in this corpus.
Search patents in G03G- Granted patents
- 486
- Published applications
- 236
- Assignees
- 58
- Inventors
- 785
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 11 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 23 | 0 |
| 1992 | 17 | 0 |
| 1993 | 7 | 0 |
| 1994 | 15 | 0 |
| 1995 | 10 | 0 |
| 1996 | 11 | 0 |
| 1997 | 13 | 0 |
| 1998 | 18 | 0 |
| 1999 | 23 | 0 |
| 2000 | 14 | 0 |
| 2001 | 27 | 1 |
| 2002 | 7 | 9 |
| 2003 | 10 | 13 |
| 2004 | 11 | 9 |
| 2005 | 11 | 7 |
| 2006 | 8 | 8 |
| 2007 | 8 | 17 |
| 2008 | 5 | 9 |
| 2009 | 6 | 24 |
| 2010 | 15 | 17 |
| 2011 | 18 | 21 |
| 2012 | 18 | 12 |
| 2013 | 20 | 19 |
| 2014 | 18 | 10 |
| 2015 | 11 | 8 |
| 2016 | 12 | 7 |
| 2017 | 5 | 3 |
| 2018 | 3 | 7 |
| 2019 | 8 | 5 |
| 2020 | 4 | 1 |
| 2021 | 4 | 7 |
| 2022 | 5 | 5 |
| 2023 | 1 | 3 |
| 2024 | 5 | 5 |
| 2025 | 5 | 6 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03G 2215/0643Electrodes in developing areaIndexing code166
- G03G 2215/0648Two or more donor membersIndexing code108
- G03G 2215/0651Electrodes in donor member surfaceIndexing code83
- G03G 2215/0641Without separate supplying memberIndexing code28
- G03G 2215/0656Fixed electrodes behind moving donor member surfaceIndexing code10
- G03G 2215/0639Without donor memberIndexing code7
Recent patents
- Developing cartridge including electrical contact surface positioned away from developing roller11 Aug 2026US 12,704,800 B2Brother Kogyo Kabushiki Kaisha
- Developing apparatus10 Feb 2026US 12,547,102 B2Canon Kabushiki Kaisha
- Image forming apparatus3 Feb 2026US 12,541,169 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 apparatus21 May 2026US 2026/0140461 A1Canon Kabushiki Kaisha
- Developing roller, process cartridge, and electrophotographic image forming apparatus5 Mar 2026US 2026/0064038 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 apparatus11 Sep 2025US 2025/0284223 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Scavengeless development apparatus for use in highlight color imaging142US 4,868,600 AXerox Corporation · 1989
- Image developing device for electrophotography114US 4,835,565 ARicoh Company, Ltd. · 1989
- Recording apparatus using a toner-fog generated by electric fields applied to electrodes on the surface of the developer carrier77US 4,568,955 ATokyo Shibaura Denki Kabushiki Kaisha · 1986
- Apparatus for forming an electrophotographic latent image74US 4,967,231 AElectric Co., Ltd. · 1990
- Electroded donor roll for a scavengeless developer unit58US 5,172,170 AXerox Corporation · 1992