G03G 2215/1619
Transfer drum
G03G2215/1619 (Transfer drum) appears on 57 US grants and 32 published applications in this corpus.
Search patents in G03G- Granted patents
- 57
- Published applications
- 32
- Assignees
- 26
- Inventors
- 132
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 3 | 4 |
| 2009 | 1 | 2 |
| 2010 | 1 | 4 |
| 2011 | 3 | 5 |
| 2012 | 3 | 0 |
| 2013 | 4 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 3 | 2 |
| 2020 | 2 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 2 |
| 2024 | 3 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Photoconductive drum supports18 Nov 2025US 12,474,662 B2Hewlett-Packard Development Company, L. P.
- Image forming apparatus31 Dec 2024US 12,181,809 B2Ricoh Company, Ltd.
- Transfer unit with a non-selected transfer roller retracted behind a guide and image forming apparatus therewith19 Mar 2024US 11,934,116 B2KYOCERA Document Solutions Inc.
- Printing device with cylindrical intermediate transfer member30 Jan 2024US 11,886,133 B2Xerox Corporation
- Servicing a drum at a printer4 Apr 2023US 11,619,895 B2Hewlett-Packard Development Company, L. P.
- Cartridge29 May 2025US 2025/0172901 A1Canon Kabushiki Kaisha
- Photoconductive drum supports2 Jan 2025US 2025/0004413 A1Hewlett-Packard Development Company, L. P.
- Image forming apparatus11 Jan 2024US 2024/0012347 A1Ricoh Company, Ltd.
- Printing device with cylindrical intermediate transfer member15 Jun 2023US 2023/0185219 A1Xerox Corporation
- Transfer unit and image forming apparatus therewith9 Feb 2023US 2023/0044638 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Image forming apparatus equipped with cleaning device74US 5,845,174 AMinolta Co., Ltd. · 1998
- Method and apparatus for forming an image for transfer to a receiver sheet using a clear toner and sintering of a pigmented toner layer32US 5,926,679 AEastman Kodak Company · 1999
- Overlaid image forming apparatus with coordinated transfer bias and attraction bias voltage sources28US 5,287,163 ACanon Kabushiki Kaisha · 1994
- Image forming apparatus with shifting means to position image transfer unit28US 5,983,062 ACanon Kabushiki Kaisha · 1999
- Image transfer device25US 4,674,860 AKonishiroku Photo Industry Co., Ltd. · 1987