F24F 1/0033
Having two or more fans
Official title: having two or more fans
F24F1/0033 (Having two or more fans) appears on 151 US grants and 179 published applications in this corpus.
Search patents in F24F- Granted patents
- 151
- Published applications
- 179
- Assignees
- 59
- Inventors
- 481
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 1 | 0 |
| 2003 | 2 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 4 |
| 2006 | 2 | 1 |
| 2007 | 0 | 4 |
| 2008 | 2 | 2 |
| 2009 | 3 | 5 |
| 2010 | 0 | 4 |
| 2011 | 1 | 5 |
| 2012 | 3 | 5 |
| 2013 | 2 | 8 |
| 2014 | 1 | 3 |
| 2015 | 2 | 1 |
| 2016 | 4 | 8 |
| 2017 | 6 | 15 |
| 2018 | 6 | 20 |
| 2019 | 15 | 9 |
| 2020 | 16 | 14 |
| 2021 | 11 | 16 |
| 2022 | 9 | 12 |
| 2023 | 9 | 14 |
| 2024 | 11 | 8 |
| 2025 | 14 | 15 |
| 2026 | 8 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Circulating air module and circulating air module system29 Sep 2026US 12,747,870 B2Envola GmbH
- Air conditioner with multiple fans and related control method28 Jul 2026US 12,693,040 B2Mitsubishi Electric Corporation
- Air purifier14 Jul 2026US 12,680,703 B2Samsung Electronics Co., Ltd.
- Air management system for a heating, ventilation, and air-conditioning system23 Jun 2026US 12,663,167 B2Goodman Global Group, Inc.
- Air blower assembly and ducted air conditioner16 Jun 2026US 12,655,995 B2Gree Electric Appliances, Inc. of Zhuhai
- Air conditioner13 Aug 2026US 2026/0235303 A1LG Electronics Inc.
- Indoor unit of an air conditioner15 Jan 2026US 2026/0016172 A1LG Electronics Inc.
- Indoor unit of an air conditioner15 Jan 2026US 2026/0016173 A1LG Electronics Inc.
- Air conditioner25 Dec 2025US 2025/0389431 A1Samsung Electronics Co., Ltd.
- Air Conditioner23 Oct 2025US 2025/0327585 A1Gree Electric Appliances, Inc. of Zhuhai
Most cited
By later US patents
- Configurable system and method for cooling a room91US 6,557,624 B1Liebert Corporation · 2003
- Apparatus and method for controlling temperature and humidity of a conditioned space55US 6,295,823 B1CH2M Hill, Inc. · 2001
- Air conditioner and air conditioning method31US 4,958,500 AHitachi, Ltd. · 1990
- Interior unit of a split type air-conditioning apparatus26US 4,240,264 ATokyo Shibaura Denki Kabushiki Kaisha · 1980
- Humidifier having multi-stage fans25US 5,573,713 AEmerson Electric Co. · 1996