G03G 15/0893
In a closed loop within the sump of the developing device
Official title: {in a closed loop within the sump of the developing device}
G03G15/0893 (In a closed loop within the sump of the developing device) appears on 703 US grants and 727 published applications in this corpus.
Search patents in G03G- Granted patents
- 703
- Published applications
- 727
- Assignees
- 51
- Inventors
- 923
- Latest grant
- 18 Aug 2026
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|---|---|---|
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| 2019 | 51 | 18 |
| 2020 | 22 | 20 |
| 2021 | 22 | 19 |
| 2022 | 17 | 32 |
| 2023 | 23 | 15 |
| 2024 | 12 | 22 |
| 2025 | 16 | 29 |
| 2026 | 9 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Developing device18 Aug 2026US 12,710,706 B2Canon Kabushiki Kaisha
- Developing apparatus including protruding portion overlapping discharge port18 Aug 2026US 12,710,709 B2Canon Kabushiki Kaisha
- Magnet including a non-rotatable shaft engaged with a through hole at a lateral end21 Jul 2026US 12,687,800 B2Ricoh Company, Ltd.
- Developer accommodating device, developing device, cartridge and image forming apparatus7 Jul 2026US 12,675,064 B2Canon Kabushiki Kaisha
- Image forming apparatus having gas flow path connected to supplying device16 Jun 2026US 12,656,709 B2FUJIFILM Business Innovation Corp.
- Developer accommodating device, developing device, cartridge and image forming apparatus17 Sep 2026US 2026/0277134 A1Canon Kabushiki Kaisha
- Developing device, image forming unit, and image forming apparatus16 Jul 2026US 2026/0202777 A1Etria Co., Ltd.
- Developing device and image forming apparatus9 Jul 2026US 2026/0194838 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus25 Jun 2026US 2026/0177943 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus4 Jun 2026US 2026/0153814 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Process cartridge, unit, and electrophotographic image forming apparatus169US 6,912,365 B2Canon Kabushiki Kaisha · 2005
- Developer agitating member123US 6,834,175 B2Canon Kabushiki Kaisha · 2004
- Developing apparatus68US 5,345,297 AMatsushita Electric Industrial Co., Ltd. · 1994
- Image forming apparatus having device for detecting concentration of developing agent63US 5,012,286 AKabushiki Kaisha Toshiba · 1991
- Powder replenishing device, powder conveying device, developing apparatus using the same powder replenishing device or powder conveying device, and image forming apparatus using the same powder replenishing device or powder conveying device59US 6,526,246 B2Ricoh Company, Ltd. · 2003