F04D 25/166
Using fans
Official title: {using fans}
F04D25/166 (Using fans) appears on 765 US grants and 959 published applications in this corpus.
Search patents in F04D- Granted patents
- 765
- Published applications
- 959
- Assignees
- 451
- Inventors
- 1,745
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 5 |
| 2002 | 18 | 9 |
| 2003 | 16 | 20 |
| 2004 | 17 | 31 |
| 2005 | 11 | 31 |
| 2006 | 13 | 23 |
| 2007 | 18 | 24 |
| 2008 | 9 | 25 |
| 2009 | 12 | 26 |
| 2010 | 17 | 17 |
| 2011 | 17 | 22 |
| 2012 | 22 | 38 |
| 2013 | 18 | 28 |
| 2014 | 28 | 37 |
| 2015 | 21 | 26 |
| 2016 | 14 | 40 |
| 2017 | 24 | 40 |
| 2018 | 28 | 56 |
| 2019 | 48 | 53 |
| 2020 | 49 | 62 |
| 2021 | 43 | 63 |
| 2022 | 61 | 58 |
| 2023 | 56 | 56 |
| 2024 | 53 | 63 |
| 2025 | 62 | 69 |
| 2026 | 29 | 37 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Inflating module for use with an inflatable object6 Oct 2026US RE51,054 E1Team Worldwide Corporation
- Motor assembly for an appliance such as a vacuum cleaner and a vacuum cleaner having same15 Sep 2026US 12,736,058 B2Omachron Intellectual Property Inc.
- Fan unit1 Sep 2026US 12,723,600 B2Nidec Corporation
- Multi-pressure integrated air pump18 Aug 2026US 12,710,032 B2Intex Marketing Ltd.
- Neck fan18 Aug 2026US 12,710,047 B1Shenzhen Jisu Technology Co., Ltd
- Neck fan20 Aug 2026US 2026/0243273 A1Shenzhen Jisu Technology Co., Ltd
- Stacked fan structure, combined blade-integrated fan and automotive seat ventilation system13 Aug 2026US 2026/0235132 A1Aew Technology Group Co., Ltd.
- Fan and air treatment device30 Jul 2026US 2026/0218728 A1Shenzhen Chenbei Technology Co., Ltd.
- Centrifugal fan, neck fan, and vortex shell assembly23 Jul 2026US 2026/0210367 A1Shenzhen Jisu Technology Co., Ltd
- Fan device16 Jul 2026US 2026/0201905 A1Cooler Master Technology Inc.
Most cited
By later US patents
- Dual-pressure blower for positive air pressure device333US 6,349,724 B1Compumedics Sleep Pty Ltd · 2002
- Thermoelectric heat exchanger227US 6,119,463 AAmerigon Incorporated · 2000
- Thermoelectric heat exchanger196US 6,223,539 B1Amerigon Incorporated · 2001
- Back flow limiting device for failed redundant parallel fan166US 6,031,717 ADell USA, L. P. · 2000
- Electronic apparatus having cooling system151US 5,484,012 AFujitsu Limited · 1996