G03G 2221/1648
Using seals
Official title: using seals, e.g. to prevent scattering of toner
G03G2221/1648 (Using seals) appears on 185 US grants and 86 published applications in this corpus.
Search patents in G03G- Granted patents
- 185
- Published applications
- 86
- Assignees
- 35
- Inventors
- 346
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 10 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 10 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 5 |
| 2002 | 5 | 11 |
| 2003 | 13 | 3 |
| 2004 | 6 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 5 |
| 2007 | 1 | 1 |
| 2008 | 1 | 4 |
| 2009 | 3 | 5 |
| 2010 | 4 | 1 |
| 2011 | 2 | 4 |
| 2012 | 4 | 1 |
| 2013 | 3 | 4 |
| 2014 | 1 | 2 |
| 2015 | 4 | 1 |
| 2016 | 2 | 1 |
| 2017 | 4 | 5 |
| 2018 | 2 | 1 |
| 2019 | 4 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 5 | 7 |
| 2023 | 4 | 2 |
| 2024 | 1 | 3 |
| 2025 | 3 | 7 |
| 2026 | 6 | 5 |
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 device and image forming apparatus including the same1 Sep 2026US 12,724,381 B2Sharp Kabushiki Kaisha
- Optical scanning device and image forming apparatus including the same28 Jul 2026US 12,693,610 B2KYOCERA Document Solutions Inc.
- Developer accommodating container and image forming apparatus7 Jul 2026US 12,675,062 B2Canon Kabushiki Kaisha
- Image forming apparatus7 Jul 2026US 12,675,072 B2Brother Kogyo Kabushiki Kaisha
- Optical scanning device and image forming apparatus1 Oct 2026US 2026/0299459 A1Konica Minolta, Inc.
- Developer accommodating container and image forming apparatus1 Oct 2026US 2026/0299464 A1Canon Kabushiki Kaisha
- Image forming apparatus30 Jul 2026US 2026/0219632 A1Etria Co., Ltd.
- Image-forming apparatus including developing unit and drum unit to which toner container is connectable, and process unit configured by the drum unit and developing unit15 Jan 2026US 2026/0016786 A1Brother Kogyo Kabushiki Kaisha
- Image forming apparatus1 Jan 2026US 2026/0003319 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Developing apparatus with drive mechanism for developer bearing body183US 6,173,145 B2Canon Kabushiki Kaisha · 2001
- Process cartridge, method for assembling process cartridge and image forming appararatus167US 5,500,714 ACanon Kabushiki Kaisha · 1996
- Process cartridge, assembling method therefor and electrophotographic image forming apparatus148US 6,519,431 B1Canon Kabushiki Kaisha · 2003
- 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