G03G 2215/0802
Arrangements for agitating or circulating developer material
G03G2215/0802 (Arrangements for agitating or circulating developer material) appears on 1,219 US grants and 1,195 published applications in this corpus.
Search patents in G03G- Granted patents
- 1,219
- Published applications
- 1,195
- Assignees
- 87
- Inventors
- 1,625
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 21 | 0 |
| 1997 | 15 | 0 |
| 1998 | 15 | 0 |
| 1999 | 17 | 0 |
| 2000 | 8 | 0 |
| 2001 | 9 | 5 |
| 2002 | 16 | 13 |
| 2003 | 17 | 15 |
| 2004 | 11 | 20 |
| 2005 | 12 | 39 |
| 2006 | 36 | 48 |
| 2007 | 37 | 87 |
| 2008 | 32 | 98 |
| 2009 | 64 | 124 |
| 2010 | 98 | 92 |
| 2011 | 91 | 95 |
| 2012 | 110 | 63 |
| 2013 | 83 | 34 |
| 2014 | 67 | 47 |
| 2015 | 52 | 41 |
| 2016 | 52 | 37 |
| 2017 | 46 | 65 |
| 2018 | 49 | 45 |
| 2019 | 50 | 36 |
| 2020 | 38 | 28 |
| 2021 | 37 | 31 |
| 2022 | 24 | 35 |
| 2023 | 22 | 23 |
| 2024 | 20 | 19 |
| 2025 | 18 | 38 |
| 2026 | 20 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03G 2215/0816Agitator typeIndexing code700
- G03G 2215/085Stirring member in developer containerIndexing code354
- G03G 2215/0836Way of functioning of agitator meansIndexing code246
- G03G 2215/0805Cleaning blade adjacent to the donor memberIndexing code22
- G03G 2215/0808Donor member rotation directionIndexing code7
Recent patents
- Toner, toner production method, and image-forming method6 Oct 2026US 12,754,489 B2Canon Kabushiki Kaisha
- Developing device including spiral blade for conveying developer while rotating and image forming apparatus22 Sep 2026US 12,743,039 B2KYOCERA Document Solutions Inc.
- Toner cartridge and image forming apparatus22 Sep 2026US 12,743,040 B2Canon Kabushiki Kaisha
- Process cartridge, image forming apparatus and toner storage unit25 Aug 2026US 12,717,271 B2Brother Kogyo Kabushiki Kaisha
- Development device and image forming device that prevents toner leakage14 Jul 2026US 12,681,409 B2Sharp Kabushiki Kaisha
- Powder transportation device and image forming apparatus1 Oct 2026US 2026/0299465 A1FUJIFILM Business Innovation Corp.
- 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.
- Developing device25 Jun 2026US 2026/0177944 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method184US 7,224,925 B2Canon Kabushiki Kaisha · 2007
- Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method169US 7,349,657 B2Canon Kabushiki Kaisha · 2008
- 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
- Developer agitating member123US 6,834,175 B2Canon Kabushiki Kaisha · 2004
- Developer supply container and electrophotographic image forming apparatus117US 7,174,122 B2Canon Kabushiki Kaisha · 2007