F05B 2250/141
Circular
Official title: circular
F05B2250/141 (Circular) appears on 53 US grants and 49 published applications in this corpus.
Search patents in F05B- Granted patents
- 53
- Published applications
- 49
- Assignees
- 30
- Inventors
- 99
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 4 |
| 2010 | 2 | 2 |
| 2011 | 0 | 4 |
| 2012 | 4 | 1 |
| 2013 | 1 | 4 |
| 2014 | 1 | 2 |
| 2015 | 3 | 0 |
| 2016 | 1 | 2 |
| 2017 | 2 | 7 |
| 2018 | 1 | 4 |
| 2019 | 3 | 3 |
| 2020 | 3 | 2 |
| 2021 | 3 | 1 |
| 2022 | 2 | 2 |
| 2023 | 2 | 2 |
| 2024 | 2 | 5 |
| 2025 | 4 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid connection for a hydromotive machine15 Sep 2026US 12,736,025 B2
- Fluid connection for a hydromotive machine5 Aug 2025US 12,378,938 B2
- Toroidal electric generator22 Jul 2025US 12,368,345 B2Infinity Electric Energy S.R.L.
- High-mass hydro rotor for hydroelectric power generation20 May 2025US 12,305,609 B2
- Tower for an offshore wind turbine comprising a crane and method of manufacturing such a tower28 Jan 2025US 12,208,998 B2Vestas Wind Systems A/S
- Tangential fluid turbine2 Jul 2026US 2026/0185502 A1
- Fluid connection for a hydromotive machine13 Nov 2025US 2025/0347261 A1
- Fluid connection for a hydromotive machine24 Oct 2024US 2024/0352913 A1BHE Turbomachinery, LLC
- Toroidal electric generator19 Sep 2024US 2024/0313617 A1Infinity Electric Energy S.R.L.
- High-mass hydro rotor for hydroelectric power generation18 Jul 2024US 2024/0240607 A1
Most cited
By later US patents
- Pre-stressed concrete tower for wind power generators61US 7,739,843 B22010
- Whirl-wind vertical axis wind and water turbine53US 5,664,418 A1997
- Buoyancy prime mover37US 6,447,243 B12002
- Vapor buoyancy engine32US 4,196,590 A1980
- Circular heat exchanger having uniform cross-sectional area throughout the passages therein25US 5,081,834 ASolar Turbines Incorporated · 1992