G03G 15/0887
Arrangements for conveying and conditioning developer in the developing unit
Official title: {Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity}
G03G15/0887 (Arrangements for conveying and conditioning developer in the developing unit) appears on 2,106 US grants and 2,048 published applications in this corpus.
Search patents in G03G- Granted patents
- 2,106
- Published applications
- 2,048
- Assignees
- 128
- Inventors
- 2,450
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 11 | 0 |
| 1990 | 11 | 0 |
| 1991 | 21 | 0 |
| 1992 | 14 | 0 |
| 1993 | 16 | 0 |
| 1994 | 15 | 0 |
| 1995 | 11 | 0 |
| 1996 | 20 | 0 |
| 1997 | 16 | 0 |
| 1998 | 24 | 0 |
| 1999 | 18 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 8 |
| 2002 | 14 | 9 |
| 2003 | 14 | 15 |
| 2004 | 8 | 28 |
| 2005 | 17 | 25 |
| 2006 | 24 | 48 |
| 2007 | 20 | 64 |
| 2008 | 33 | 65 |
| 2009 | 42 | 73 |
| 2010 | 65 | 60 |
| 2011 | 62 | 71 |
| 2012 | 75 | 91 |
| 2013 | 72 | 107 |
| 2014 | 117 | 88 |
| 2015 | 135 | 114 |
| 2016 | 139 | 115 |
| 2017 | 114 | 153 |
| 2018 | 144 | 143 |
| 2019 | 154 | 104 |
| 2020 | 124 | 118 |
| 2021 | 98 | 103 |
| 2022 | 109 | 120 |
| 2023 | 85 | 88 |
| 2024 | 67 | 78 |
| 2025 | 76 | 105 |
| 2026 | 52 | 55 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Developing cartridge6 Oct 2026US 12,754,494 B2Brother Kogyo 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
- Image forming apparatus having cyclonic separating portion, toner container, and developing apparatus15 Sep 2026US 12,736,896 B2Canon Kabushiki Kaisha
- Conveying screw and image forming apparatus15 Sep 2026US 12,736,910 B2KYOCERA Document Solutions Inc.
- Sleeve, developer carrying member, and developing device8 Oct 2026US 2026/0310116 A1Canon Kabushiki Kaisha
- Image forming apparatus8 Oct 2026US 2026/0310117 A1Canon Kabushiki Kaisha
- Image forming apparatus1 Oct 2026US 2026/0299462 A1
- Powder transportation device and image forming apparatus1 Oct 2026US 2026/0299465 A1FUJIFILM Business Innovation Corp.
- Developing apparatus24 Sep 2026US 2026/0288035 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Imaging apparatus cartridge including an encoded device182US 5,995,772 ALexmark International, Inc. · 1999
- 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 device frame, process cartridge, and electrophotographic image forming apparatus99US 6,343,192 B12002
- Direct electrostatic printing apparatus and toner/developer delivery system therefor86US 4,743,926 AXerox Corporation · 1988