F24S 80/20
Working fluids specially adapted for solar heat collectors
F24S80/20 (Working fluids specially adapted for solar heat collectors) appears on 246 US grants and 256 published applications in this corpus.
Search patents in F24S- Granted patents
- 246
- Published applications
- 256
- Assignees
- 189
- Inventors
- 646
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 7 | 0 |
| 1978 | 7 | 0 |
| 1979 | 8 | 0 |
| 1980 | 12 | 0 |
| 1981 | 15 | 0 |
| 1982 | 11 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 2 | 5 |
| 2005 | 2 | 4 |
| 2006 | 4 | 5 |
| 2007 | 3 | 2 |
| 2008 | 1 | 5 |
| 2009 | 2 | 2 |
| 2010 | 1 | 5 |
| 2011 | 2 | 11 |
| 2012 | 3 | 12 |
| 2013 | 3 | 12 |
| 2014 | 3 | 17 |
| 2015 | 8 | 16 |
| 2016 | 8 | 10 |
| 2017 | 6 | 20 |
| 2018 | 14 | 18 |
| 2019 | 15 | 21 |
| 2020 | 16 | 12 |
| 2021 | 17 | 14 |
| 2022 | 4 | 17 |
| 2023 | 10 | 16 |
| 2024 | 10 | 14 |
| 2025 | 15 | 7 |
| 2026 | 8 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Solar energy utilization system1 Sep 2026US 12,726,153 B2Machiokoshi Energy Co., Ltd.
- Concentrated solar thermal reactor21 Apr 2026US 12,607,385 B2Blueshift, LLC
- Solar environmental control system, apparatus, and method relating thereto14 Apr 2026US 12,601,528 B2University of North Texas
- Ceramic particles for use in a solar power tower24 Mar 2026US 12,584,659 B2Carbo Ceramics Inc.
- Flat heat absorber for solar tower power generation and system using same17 Mar 2026US 12,578,122 B2Nanjing Tech University
- Ceramic particles for use in a solar power tower17 Sep 2026US 2026/0276244 A1Carbo Ceramics Inc.
- Solar thermal energy storage and integrated power generation system13 Aug 2026US 2026/0235326 A1EnviroMission Group, LLC
- Selenothermal energy storage6 Aug 2026US 2026/0227099 A1Government of the United States as Represented by the Secretary of the Air Force
- Solar collection energy storage and energy conversion or chemical conversion systems23 Jul 2026US 2026/0210583 A1
- Particle flow control system4 Jun 2026US 2026/0153272 A1Boise State University
Most cited
By later US patents
- Heat transfer and storage system124US 4,727,930 AThe Board of Regents of the University of Washington · 1988
- Molten salt receiver cooling system100US 6,701,711 B1The Boeing Company · 2004
- Heat storage system and method92US 4,222,365 ARockwell International Corporation · 1980
- Solar dish concentrator with a molten salt receiver incorporating thermal energy storage84US 7,299,633 B2Pratt & Whitney Rocketdyne, Inc. · 2007
- Solar collector and method64US 7,055,519 B2United Technologies Corporation · 2006