F03D 9/39
By circulation or vortex formation
Official title: by circulation or vortex formation
F03D9/39 (By circulation or vortex formation) appears on 26 US grants and 27 published applications in this corpus.
Search patents in F03D- Granted patents
- 26
- Published applications
- 27
- Assignees
- 12
- Inventors
- 36
- Latest grant
- 27 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 3 |
| 2012 | 0 | 1 |
| 2013 | 2 | 2 |
| 2014 | 2 | 2 |
| 2015 | 1 | 1 |
| 2016 | 3 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vortex station27 Aug 2024US 12,071,936 B2Auckland Uniservices Limited
- Vortex station29 Aug 2023US 11,739,731 B2Auckland Uniservices Limited
- Venturi vortex and flow facilitating turbine6 Dec 2022US 11,519,384 B2
- Vortex acceleration wind energy tower4 Jan 2022US 11,215,165 B2
- Venturi vortex and flow facilitating turbine1 Jun 2021US 11,022,096 B2
- Solar Vortex Clamshell Greenhouse12 Mar 2026US 2026/0071608 A1
- Vortex station19 Dec 2024US 2024/0418150 A1Auckland Uniservices Limited
- Vortex station22 Feb 2024US 2024/0060472 A1Auckland Uniservices Limited
- Artificial wind generators in an enclosed wind motor generator power plant facility to produce consistent electricity output27 Oct 2022US 2022/0341394 A1
- Venturi vortex and flow facilitating turbine9 Sep 2021US 2021/0277865 A1
Most cited
By later US patents
- System for the obtaining of energy by fluid flows resembling a natural cyclone or anti-cyclone149US 4,452,046 A1984
- Wind and solar powered turbine60US 4,433,544 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1984
- Revolving power tower41US 4,935,639 A1990
- All-weather energy and water production via steam-enhanced vortex tower39US 6,943,461 B22005
- Cyclonic or anti-cyclonic conversion tower32US 6,590,300 B1Tryp Multiserv Servicios, S.L. · 2003