G03G 2221/1645
For conducting air through the machine
Official title: for conducting air through the machine, e.g. cooling
G03G2221/1645 (For conducting air through the machine) appears on 385 US grants and 414 published applications in this corpus.
Search patents in G03G- Granted patents
- 385
- Published applications
- 414
- Assignees
- 55
- Inventors
- 755
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 4 |
| 2003 | 3 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 12 |
| 2006 | 6 | 15 |
| 2007 | 8 | 22 |
| 2008 | 17 | 14 |
| 2009 | 17 | 26 |
| 2010 | 11 | 12 |
| 2011 | 15 | 29 |
| 2012 | 18 | 25 |
| 2013 | 24 | 6 |
| 2014 | 26 | 16 |
| 2015 | 18 | 7 |
| 2016 | 18 | 19 |
| 2017 | 12 | 10 |
| 2018 | 13 | 12 |
| 2019 | 14 | 22 |
| 2020 | 20 | 12 |
| 2021 | 8 | 9 |
| 2022 | 17 | 36 |
| 2023 | 25 | 27 |
| 2024 | 28 | 17 |
| 2025 | 19 | 32 |
| 2026 | 15 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cartridge and image forming apparatus to convey toner using air8 Sep 2026US 12,730,393 B2Canon Kabushiki Kaisha
- Image forming apparatus with cooling configuration8 Sep 2026US 12,730,409 B2Canon Kabushiki Kaisha
- Image forming apparatus to selectively supply air to stations including image forming units18 Aug 2026US 12,710,723 B2Ricoh Company, Ltd.
- Powder conveying device and image forming apparatus21 Jul 2026US 12,687,801 B2FUJIFILM Business Innovation Corp.
- Development device and image forming device that prevents toner leakage14 Jul 2026US 12,681,409 B2Sharp Kabushiki Kaisha
- Developing device1 Oct 2026US 2026/0299511 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus1 Oct 2026US 2026/0299512 A1Brother Kogyo Kabushiki Kaisha
- Image forming system24 Sep 2026US 2026/0288059 A1FUJIFILM Business Innovation Corp.
- Foreign matter capturing system and image forming apparatus24 Sep 2026US 2026/0288060 A1FUJIFILM Business Innovation Corp.
- Image forming system24 Sep 2026US 2026/0288061 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Electrophotographic copying apparatus119US 3,985,436 AMinolta Camera Kabushiki Kaisha · 1976
- Process kit and image forming apparatus using such kit96US 4,540,268 ACanon Kabushiki Kaisha · 1985
- Process cartridge and image forming apparatus83US 6,219,504 B1Canon Kabushiki Kaisha · 2001
- Recording apparatus and ink cartridge72US 4,893,137 ACanon Kabushiki Kaisha · 1990
- Process cartridge having shiftable cover with inner protrusion52US 5,878,304 ACanon Kabushiki Kaisha · 1999