G03G 15/0898
For preventing toner scattering during operation
Official title: {for preventing toner scattering during operation, e.g. seals (sealing the donor member G03G15/0817; sealing the magnetic brush G03G15/0942)}
G03G15/0898 (For preventing toner scattering during operation) appears on 585 US grants and 509 published applications in this corpus.
Search patents in G03G- Granted patents
- 585
- Published applications
- 509
- Assignees
- 82
- Inventors
- 1,083
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 13 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 10 | 0 |
| 1998 | 6 | 0 |
| 1999 | 12 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 3 |
| 2002 | 7 | 6 |
| 2003 | 7 | 7 |
| 2004 | 5 | 7 |
| 2005 | 2 | 14 |
| 2006 | 11 | 9 |
| 2007 | 10 | 24 |
| 2008 | 12 | 21 |
| 2009 | 11 | 21 |
| 2010 | 20 | 22 |
| 2011 | 18 | 19 |
| 2012 | 22 | 10 |
| 2013 | 24 | 30 |
| 2014 | 22 | 40 |
| 2015 | 39 | 33 |
| 2016 | 46 | 22 |
| 2017 | 18 | 25 |
| 2018 | 34 | 26 |
| 2019 | 28 | 26 |
| 2020 | 22 | 23 |
| 2021 | 23 | 19 |
| 2022 | 18 | 25 |
| 2023 | 21 | 18 |
| 2024 | 14 | 12 |
| 2025 | 9 | 22 |
| 2026 | 11 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Toner seal member and toner cartridge15 Sep 2026US 12,736,899 B2Inoac Corporation
- Developing apparatus including protruding portion overlapping discharge port18 Aug 2026US 12,710,709 B2Canon Kabushiki Kaisha
- Development device and image forming device that prevents toner leakage14 Jul 2026US 12,681,409 B2Sharp Kabushiki Kaisha
- Developer accommodating container and image forming apparatus7 Jul 2026US 12,675,062 B2Canon Kabushiki Kaisha
- Developer storage body including frame body having contact surface with holes and seal member contacting contact surface23 Jun 2026US 12,663,739 B2Oki Electric Industry Co., Ltd.
- Developer accommodating container and image forming apparatus1 Oct 2026US 2026/0299464 A1Canon Kabushiki Kaisha
- Developing apparatus24 Sep 2026US 2026/0288035 A1Canon Kabushiki Kaisha
- Toner container and image forming apparatus23 Jul 2026US 2026/0211356 A1KYOCERA Document Solutions Inc.
- Toner cartridge16 Jul 2026US 2026/0202789 A1General Plastic Industrial Co., Ltd.
- Image forming apparatus9 Jul 2026US 2026/0194840 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Developing apparatus, process cartridge, connecting method between developing frame and developer frame, and flexible seal172US 6,603,939 B1Canon Kabushiki Kaisha · 2003
- 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
- Process cartridge and image forming system on which process cartridge is mountable120US 5,623,328 ACanon Kabushiki Kaisha · 1997
- Detachable two-frame process cartridge for an image forming apparatus115US 5,294,960 ACanon Kabushiki Kaisha · 1994
- Developing device frame unit, developing device, process cartridge, and manufacturing method of the developing device frame unit113US 7,933,534 B2Canon Kabushiki Kaisha · 2011