F25D 2317/0684
The fans allowing rotation in reverse direction
Official title: the fans allowing rotation in reverse direction
F25D2317/0684 (The fans allowing rotation in reverse direction) appears on 57 US grants and 40 published applications in this corpus.
Search patents in F25D- Granted patents
- 57
- Published applications
- 40
- Assignees
- 34
- Inventors
- 137
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 2 | 4 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 2 | 2 |
| 2016 | 0 | 4 |
| 2017 | 3 | 1 |
| 2018 | 1 | 1 |
| 2019 | 3 | 1 |
| 2020 | 2 | 3 |
| 2021 | 1 | 3 |
| 2022 | 3 | 2 |
| 2023 | 1 | 3 |
| 2024 | 5 | 3 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Active insulation hybrid dual evaporator with rotating fan57US 9,140,480 B2Whirlpool Corporation · 2015
- Methods of operating a refrigeration system33US 5,249,429 AThermo King Corporation · 1993
- Controller of refrigerator33US 6,058,723 AKabushiki Kaisha Toshiba · 2000
- Control system for a refrigerator with two evaporating temperatures31US 6,286,326 B1WorkSmart Energy Enterprises, Inc. · 2001
- Refrigerated merchandiser display case28US 4,369,632 ATyler Refrigeration Corporation · 1983