G03G 2215/0822
With wall or blade between agitators
Official title: with wall or blade between agitators
G03G2215/0822 (With wall or blade between agitators) appears on 266 US grants and 253 published applications in this corpus.
Search patents in G03G- Granted patents
- 266
- Published applications
- 253
- Assignees
- 35
- Inventors
- 474
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 10 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 1 |
| 2002 | 4 | 4 |
| 2003 | 3 | 2 |
| 2004 | 3 | 5 |
| 2005 | 3 | 11 |
| 2006 | 9 | 14 |
| 2007 | 6 | 25 |
| 2008 | 10 | 23 |
| 2009 | 12 | 32 |
| 2010 | 23 | 30 |
| 2011 | 26 | 34 |
| 2012 | 40 | 18 |
| 2013 | 25 | 4 |
| 2014 | 19 | 2 |
| 2015 | 6 | 8 |
| 2016 | 7 | 3 |
| 2017 | 4 | 6 |
| 2018 | 3 | 4 |
| 2019 | 6 | 5 |
| 2020 | 4 | 0 |
| 2021 | 2 | 2 |
| 2022 | 2 | 6 |
| 2023 | 4 | 4 |
| 2024 | 4 | 2 |
| 2025 | 1 | 7 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Developing device including spiral blade for conveying developer while rotating and image forming apparatus22 Sep 2026US 12,743,039 B2KYOCERA Document Solutions Inc.
- Development device and image forming device that prevents toner leakage14 Jul 2026US 12,681,409 B2Sharp Kabushiki Kaisha
- Developing device and image forming apparatus19 May 2026US 12,631,989 B2KYOCERA Document Solutions Inc.
- Developing device and image forming apparatus therewith21 Oct 2025US 12,449,747 B2KYOCERA Document Solutions Inc.
- Developing device and image forming apparatus that suppress discharge of developer24 Sep 2024US 12,099,316 B2FUJIFILM Business Innovation Corp.
- Developing device and image forming apparatus9 Jul 2026US 2026/0194838 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus4 Dec 2025US 2025/0370378 A1FUJIFILM Business Innovation Corp.
- Development device and image forming apparatus therewith9 Oct 2025US 2025/0314990 A1KYOCERA Document Solutions Inc.
- Development device and image forming apparatus provided therewith9 Oct 2025US 2025/0314993 A1KYOCERA Document Solutions Inc.
- Developing device and image forming apparatus17 Jul 2025US 2025/0231507 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Developing device and process cartridge comprising first and second sealing members and electrophotographic image forming apparatus comprising a developing device comprising first and second sealing members165US 6,823,153 B2Canon Kabushiki Kaisha · 2004
- Image forming device with improved mixing of circulated developer with replensihed toner52US 5,887,224 ARicoh Company, Ltd. · 1999
- Developer recycling system and developer cartridge therefor48US 5,508,794 ARicoh Company, Ltd. · 1996
- Developing apparatus having developer carrying screw with a plurality of inclination angles42US 7,035,573 B2Canon Kabushiki Kaisha · 2006
- Developing device33US 5,963,766 AMinolta Co., Ltd. · 1999