G03G 15/0225
Provided with means for cleaning the charging member
Official title: {provided with means for cleaning the charging member}
G03G15/0225 (Provided with means for cleaning the charging member) appears on 328 US grants and 304 published applications in this corpus.
Search patents in G03G- Granted patents
- 328
- Published applications
- 304
- Assignees
- 45
- Inventors
- 661
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 2 |
| 2002 | 6 | 5 |
| 2003 | 2 | 7 |
| 2004 | 5 | 5 |
| 2005 | 4 | 4 |
| 2006 | 8 | 8 |
| 2007 | 5 | 22 |
| 2008 | 6 | 16 |
| 2009 | 13 | 15 |
| 2010 | 19 | 13 |
| 2011 | 15 | 15 |
| 2012 | 14 | 8 |
| 2013 | 11 | 8 |
| 2014 | 11 | 10 |
| 2015 | 13 | 7 |
| 2016 | 11 | 11 |
| 2017 | 14 | 21 |
| 2018 | 17 | 17 |
| 2019 | 25 | 30 |
| 2020 | 28 | 16 |
| 2021 | 9 | 10 |
| 2022 | 11 | 15 |
| 2023 | 9 | 9 |
| 2024 | 7 | 13 |
| 2025 | 14 | 8 |
| 2026 | 2 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drum cartridge30 Jun 2026US 12,669,761 B2Canon Kabushiki Kaisha
- Image forming apparatus and process cartridge20 Jan 2026US 12,529,977 B2Canon Kabushiki Kaisha
- Image-forming apparatus having charging potential control during non-image forming operation4 Nov 2025US 12,461,465 B2Canon Kabushiki Kaisha
- Charging system and image forming system9 Sep 2025US 12,411,431 B2FUJIFILM Business Innovation Corp.
- Image forming apparatus9 Sep 2025US 12,411,432 B2Canon Kabushiki Kaisha
- Charging-member cleaner, image forming apparatus, and process cartridge10 Sep 2026US 2026/0267252 A1
- Cleaning apparatus and image forming apparatus27 Aug 2026US 2026/0251995 A1KYOCERA Document Solutions Inc.
- Image forming apparatus18 Jun 2026US 2026/0169418 A1KYOCERA Document Solutions Inc.
- Image forming apparatus14 May 2026US 2026/0133520 A1FUJIFILM Business Innovation Corp.
- Process unit and image forming apparatus30 Apr 2026US 2026/0118795 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Image forming apparatus and cleaning method for contact-charging member55US 5,999,773 ARicoh Company, Ltd. · 1999
- Toner spreading device for a charging roller of an image forming apparatus42US 5,799,229 ARicoh Company, Ltd. · 1998
- Image forming apparatus with cleaning mechanism for charging electrode39US 5,132,738 ACanon Kabushiki Kaisha · 1992
- Method of and system for cleaning roller members32US 5,532,795 ARicoh Company, Ltd. · 1996
- Method and apparatus for charging an electrographic photoreceptor29US 5,842,081 AFuji Xerox Co., Ltd. · 1998