F24S 10/00
Solar heat collectors using working fluids
F24S10/00 (Solar heat collectors using working fluids) appears on 2,729 US grants and 1,828 published applications in this corpus.
Search patents in F24S- Granted patents
- 2,729
- Published applications
- 1,828
- Assignees
- 1,187
- Inventors
- 4,529
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 67 | 0 |
| 1977 | 127 | 0 |
| 1978 | 217 | 0 |
| 1979 | 167 | 0 |
| 1980 | 187 | 0 |
| 1981 | 211 | 0 |
| 1982 | 147 | 0 |
| 1983 | 99 | 0 |
| 1984 | 92 | 0 |
| 1985 | 66 | 0 |
| 1986 | 51 | 0 |
| 1987 | 31 | 0 |
| 1988 | 29 | 0 |
| 1989 | 18 | 0 |
| 1990 | 28 | 0 |
| 1991 | 11 | 0 |
| 1992 | 15 | 0 |
| 1993 | 14 | 0 |
| 1994 | 9 | 0 |
| 1995 | 13 | 0 |
| 1996 | 18 | 0 |
| 1997 | 12 | 0 |
| 1998 | 9 | 0 |
| 1999 | 18 | 0 |
| 2000 | 19 | 0 |
| 2001 | 11 | 5 |
| 2002 | 10 | 12 |
| 2003 | 20 | 22 |
| 2004 | 10 | 28 |
| 2005 | 9 | 18 |
| 2006 | 11 | 29 |
| 2007 | 5 | 43 |
| 2008 | 12 | 72 |
| 2009 | 16 | 87 |
| 2010 | 25 | 121 |
| 2011 | 21 | 149 |
| 2012 | 45 | 144 |
| 2013 | 56 | 173 |
| 2014 | 73 | 130 |
| 2015 | 95 | 128 |
| 2016 | 85 | 86 |
| 2017 | 70 | 77 |
| 2018 | 74 | 73 |
| 2019 | 73 | 71 |
| 2020 | 62 | 56 |
| 2021 | 56 | 65 |
| 2022 | 33 | 61 |
| 2023 | 50 | 54 |
| 2024 | 51 | 56 |
| 2025 | 53 | 41 |
| 2026 | 28 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F24S 10/70The working fluids being conveyed through tubular absorbing conduits1,018
- F24S 10/50The working fluids being conveyed between plates721
- F24S 10/40In absorbing elements surrounded by transparent enclosures490
- F24S 10/90Solar heat collectors using working fluids: using internal thermosiphonic circulation253
- F24S 10/10The working fluids forming pools or ponds224
- F24S 10/80Comprising porous material or permeable masses directly contacting the working fluids187
- F24S 10/30Solar heat collectors using working fluids: with means for exchanging heat between142
- F24S 10/60The working fluids trickling freely over absorbing elements103
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- Selenothermal energy storage6 Aug 2026US 2026/0227099 A1Government of the United States as Represented by the Secretary of the Air Force
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Most cited
By later US patents
- Pool solar power generator616US 9,847,749 B2Masimo Semiconductor, Inc. · 2017
- System for the obtaining of energy by fluid flows resembling a natural cyclone or anti-cyclone149US 4,452,046 A1984
- Solar radiation collection system119US 4,054,124 A1977
- Geothermal heating and cooling system with solar heating115US 7,234,314 B1Earth to Air Systems, LLC · 2007
- Mass algal culture system110US 4,320,594 ABattelle Memorial Institute · 1982