G03G 21/007
Arrangement or disposition of parts of the cleaning unit
Official title: {Arrangement or disposition of parts of the cleaning unit}
G03G21/007 (Arrangement or disposition of parts of the cleaning unit) appears on 390 US grants and 347 published applications in this corpus.
Search patents in G03G- Granted patents
- 390
- Published applications
- 347
- Assignees
- 55
- Inventors
- 819
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 10 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 1 |
| 2002 | 8 | 9 |
| 2003 | 5 | 12 |
| 2004 | 5 | 3 |
| 2005 | 4 | 14 |
| 2006 | 7 | 12 |
| 2007 | 15 | 20 |
| 2008 | 13 | 14 |
| 2009 | 7 | 13 |
| 2010 | 14 | 26 |
| 2011 | 16 | 13 |
| 2012 | 16 | 21 |
| 2013 | 14 | 15 |
| 2014 | 23 | 11 |
| 2015 | 22 | 17 |
| 2016 | 18 | 18 |
| 2017 | 13 | 15 |
| 2018 | 19 | 17 |
| 2019 | 19 | 16 |
| 2020 | 12 | 15 |
| 2021 | 10 | 5 |
| 2022 | 11 | 10 |
| 2023 | 6 | 12 |
| 2024 | 13 | 19 |
| 2025 | 8 | 14 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image forming apparatus with a reflector disposed on a cleaning blade support15 Sep 2026US 12,736,909 B2Ricoh Company, Ltd.
- Cleaning device and image forming device including the same1 Sep 2026US 12,724,376 B2Sharp Kabushiki Kaisha
- Image forming apparatus25 Aug 2026US 12,717,266 B2Canon Kabushiki Kaisha
- Process cartridge, image forming apparatus and toner storage unit25 Aug 2026US 12,717,271 B2Brother Kogyo Kabushiki Kaisha
- Metal material printing equipment and printing method, and printed metal material obtained therefrom18 Aug 2026US 12,710,719 B2Posco
- Cleaning device and image forming apparatus13 Aug 2026US 2026/0235979 A1FUJIFILM Business Innovation Corp.
- Cartridge and image forming apparatus9 Jul 2026US 2026/0194853 A1Canon Kabushiki Kaisha
- Medium transport device and recording device11 Jun 2026US 2026/0158803 A1Seiko Epson Corporation
- Movable cleaning device5 Mar 2026US 2026/0064044 A1Hewlett-Packard Development Company, L. P.
- Image forming apparatus29 Jan 2026US 2026/0029744 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Process cartridge and electrophotographic image forming apparatus69US 7,088,939 B2Canon Kabushiki Kaisha · 2006
- Cleaning apparatus with a member to prevent peeling of a guide member, and a process cartridge and image forming apparatus using the same60US 5,455,665 ACanon Kabushiki Kaisha · 1995
- Cleaning apparatus having a cleaning member, a cleaning frame, and a connecting portion connecting both end surfaces of the frame54US 6,836,639 B2Canon Kabushiki Kaisha · 2004
- Process unit cartridge for an electrophotographic apparatus48US 4,987,446 ARicoh Company, Ltd. · 1991
- Electrostatic copying machine with removable copying drum46US 3,966,316 AAgfa-Gevaert · 1976