G03G 15/0121
For developing
Official title: {for developing}
G03G15/0121 (For developing) appears on 882 US grants and 827 published applications in this corpus.
Search patents in G03G- Granted patents
- 882
- Published applications
- 827
- Assignees
- 97
- Inventors
- 1,494
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 15 | 0 |
| 1992 | 9 | 0 |
| 1993 | 11 | 0 |
| 1994 | 14 | 0 |
| 1995 | 8 | 0 |
| 1996 | 15 | 0 |
| 1997 | 13 | 0 |
| 1998 | 18 | 0 |
| 1999 | 12 | 0 |
| 2000 | 23 | 0 |
| 2001 | 18 | 5 |
| 2002 | 11 | 6 |
| 2003 | 14 | 16 |
| 2004 | 13 | 51 |
| 2005 | 30 | 47 |
| 2006 | 37 | 69 |
| 2007 | 38 | 48 |
| 2008 | 46 | 42 |
| 2009 | 31 | 40 |
| 2010 | 36 | 34 |
| 2011 | 32 | 45 |
| 2012 | 35 | 28 |
| 2013 | 48 | 20 |
| 2014 | 34 | 21 |
| 2015 | 26 | 22 |
| 2016 | 19 | 16 |
| 2017 | 24 | 31 |
| 2018 | 26 | 38 |
| 2019 | 39 | 37 |
| 2020 | 37 | 30 |
| 2021 | 25 | 22 |
| 2022 | 18 | 15 |
| 2023 | 18 | 12 |
| 2024 | 13 | 27 |
| 2025 | 23 | 61 |
| 2026 | 28 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus29 Sep 2026US 12,748,360 B2Canon Kabushiki Kaisha
- Image forming apparatus29 Sep 2026US 12,748,361 B2Canon Kabushiki Kaisha
- Image forming apparatus22 Sep 2026US 12,743,048 B2Canon Kabushiki Kaisha
- Electrophotographic conductive roller, process cartridge, and electrophotographic image forming apparatus15 Sep 2026US 12,736,893 B2Canon Kabushiki Kaisha
- Image forming apparatus1 Sep 2026US 12,724,362 B2Canon Kabushiki Kaisha
- Image forming apparatus8 Oct 2026US 2026/0310117 A1Canon Kabushiki Kaisha
- Developing device and image forming apparatus1 Oct 2026US 2026/0299460 A1FUJIFILM Business Innovation Corp.
- Developer set and image forming apparatus24 Sep 2026US 2026/0288028 A1KYOCERA Document Solutions Inc.
- Toner conveying device, and developing device and image forming apparatus therewith17 Sep 2026US 2026/0277135 A1KYOCERA Document Solutions Inc.
- Image forming apparatus that forms image on sheet using rotary developing scheme27 Aug 2026US 2026/0251999 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Metallic color image forming apparatus and metallic color image forming method116US 9,753,390 B2Kabushiki Kaisha Toshiba · 2017
- Color image forming apparatus with plural color units114US 5,809,380 AMatsushita Electric Industrial Co., Ltd. · 1998
- Air jet cleaner for one pump color imager113US 5,231,455 APhoenix Precision Graphics, Inc. · 1993
- Image-forming-apparatus process cartridge having a locking portion to prevent the cartridge from disengaging from the image forming apparatus and an image forming apparatus mounting such a cartridge102US 6,834,173 B2Canon Kabushiki Kaisha · 2004
- Cartridge having locking portion for locking cartridge with an image forming apparatus and releasing portion to release the locking portion, and image forming apparatus having such a cartridge93US 6,947,687 B2Canon Kabushiki Kaisha · 2005