G03G 2215/0634
Developing device
G03G2215/0634 (Developing device) appears on 940 US grants and 718 published applications in this corpus.
Search patents in G03G- Granted patents
- 940
- Published applications
- 718
- Assignees
- 110
- Inventors
- 1,638
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 11 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 23 | 0 |
| 1992 | 17 | 0 |
| 1993 | 8 | 0 |
| 1994 | 15 | 0 |
| 1995 | 10 | 0 |
| 1996 | 13 | 0 |
| 1997 | 14 | 0 |
| 1998 | 20 | 0 |
| 1999 | 33 | 0 |
| 2000 | 21 | 0 |
| 2001 | 39 | 9 |
| 2002 | 30 | 28 |
| 2003 | 26 | 26 |
| 2004 | 22 | 34 |
| 2005 | 27 | 42 |
| 2006 | 30 | 53 |
| 2007 | 35 | 58 |
| 2008 | 30 | 51 |
| 2009 | 31 | 97 |
| 2010 | 49 | 54 |
| 2011 | 76 | 57 |
| 2012 | 53 | 28 |
| 2013 | 53 | 25 |
| 2014 | 35 | 19 |
| 2015 | 24 | 18 |
| 2016 | 20 | 12 |
| 2017 | 9 | 8 |
| 2018 | 10 | 16 |
| 2019 | 20 | 22 |
| 2020 | 19 | 13 |
| 2021 | 12 | 13 |
| 2022 | 10 | 6 |
| 2023 | 1 | 6 |
| 2024 | 7 | 8 |
| 2025 | 5 | 7 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power supply device and image forming apparatus25 Aug 2026US 12,717,264 B2KYOCERA Document Solutions Inc.
- Developing cartridge including electrical contact surface positioned away from developing roller11 Aug 2026US 12,704,800 B2Brother Kogyo Kabushiki Kaisha
- Image forming apparatus14 Jul 2026US 12,681,407 B2Canon Kabushiki Kaisha
- Developing apparatus14 Apr 2026US 12,602,007 B2Samsung Electronics Co., Ltd.
- Developing apparatus10 Feb 2026US 12,547,102 B2Canon Kabushiki Kaisha
- Photoconductive sleeve supports3 Sep 2026US 2026/0259527 A1Hewlett-Packard Development Company, L. P.
- Lep printing device bid assembly constant current mode27 Aug 2026US 2026/0252002 A1Hewlett-Packard Development Company, L. P.
- Developing apparatus21 May 2026US 2026/0140461 A1Canon Kabushiki Kaisha
- Electrostatic charge image developing carrier, electrostatic charge image developer, process cartridge, image forming apparatus, and image forming method30 Apr 2026US 2026/0118788 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus12 Mar 2026US 2026/0072380 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- 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
- Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and process cartridge having a supporting member for rotatably supporting a developing roller at a position away from the center of rotation thereof155US 6,577,831 B1Canon Kabushiki Kaisha · 2003
- Scavengeless development apparatus for use in highlight color imaging142US 4,868,600 AXerox Corporation · 1989
- Image forming apparatus and developing device with improved self toner density control118US 6,337,957 B12002
- Image developing device for electrophotography114US 4,835,565 ARicoh Company, Ltd. · 1989