G03G 15/087
Developer cartridges having a longitudinal rotational axis, around which at least one
Official title: {Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge}
G03G15/087 (Developer cartridges having a longitudinal rotational axis, around which at least one) appears on 1,276 US grants and 1,190 published applications in this corpus.
Search patents in G03G- Granted patents
- 1,276
- Published applications
- 1,190
- Assignees
- 104
- Inventors
- 1,331
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 11 | 0 |
| 1997 | 10 | 0 |
| 1998 | 20 | 0 |
| 1999 | 17 | 0 |
| 2000 | 20 | 0 |
| 2001 | 18 | 3 |
| 2002 | 14 | 9 |
| 2003 | 12 | 18 |
| 2004 | 10 | 28 |
| 2005 | 20 | 27 |
| 2006 | 20 | 40 |
| 2007 | 22 | 53 |
| 2008 | 39 | 58 |
| 2009 | 34 | 57 |
| 2010 | 65 | 48 |
| 2011 | 57 | 50 |
| 2012 | 64 | 41 |
| 2013 | 49 | 39 |
| 2014 | 51 | 49 |
| 2015 | 49 | 36 |
| 2016 | 60 | 50 |
| 2017 | 39 | 59 |
| 2018 | 61 | 68 |
| 2019 | 68 | 67 |
| 2020 | 74 | 82 |
| 2021 | 72 | 68 |
| 2022 | 73 | 61 |
| 2023 | 55 | 56 |
| 2024 | 42 | 51 |
| 2025 | 53 | 48 |
| 2026 | 27 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Toner container and image forming system15 Sep 2026US 12,736,897 B2Canon Kabushiki Kaisha
- Process cartridge, image forming apparatus and toner storage unit25 Aug 2026US 12,717,271 B2Brother Kogyo Kabushiki Kaisha
- Developing cartridge for detachable mounting to an imaging device25 Aug 2026US 12,717,274 B2Zhuhai Un-Tern Imaging Products Co., Ltd
- Image forming apparatus including cover having opening that allows toner cartridge to pass therethrough but does not allow drum cartridge to pass therethrough11 Aug 2026US 12,704,808 B2Brother Kogyo Kabushiki Kaisha
- Developer supply container and developer supplying system28 Jul 2026US 12,693,622 B2Canon Kabushiki Kaisha
- Developing cartridge including holder holding electrical contact surface and supported by gear cover1 Oct 2026US 2026/0299463 A1Brother Kogyo Kabushiki Kaisha
- Image forming apparatus24 Sep 2026US 2026/0288042 A1
- Developing cartridge including movable shaft, and cam provided on shaft and having surface inclined relative thereto24 Sep 2026US 2026/0288055 A1Brother Kogyo Kabushiki Kaisha
- Developer supply container and developer supplying system17 Sep 2026US 2026/0277131 A1Canon Kabushiki Kaisha
- Toner storage container17 Sep 2026US 2026/0277132 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Toner bottle, toner supply system and image forming apparatus using same133US 6,185,401 B2Canon Kabushiki Kaisha · 2001
- Developer replenishing device and developer container for use therewith103US 5,455,662 ARicoh Company, Ltd. · 1995
- Image forming apparatus and toner replenishing device therefor94US 6,118,951 ARicoh Company, Ltd. · 2000
- Developer cartridge and developing apparatus89US 5,579,101 ACanon Kabushiki Kaisha · 1996
- Developer container, developer supplying device, and image forming apparatus89US 7,321,744 B2Ricoh Company, Ltd. · 2008