F24S 10/25
Solar heat collectors using working fluids: having two or more passages for
Official title: having two or more passages for the same working fluid layered in direction of solar-rays, e.g. having upper circulation channels connected with lower circulation channels
F24S10/25 (Solar heat collectors using working fluids: having two or more passages for) appears on 84 US grants and 76 published applications in this corpus.
Search patents in F24S- Granted patents
- 84
- Published applications
- 76
- Assignees
- 55
- Inventors
- 174
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 12 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 4 |
| 2009 | 0 | 4 |
| 2010 | 0 | 4 |
| 2011 | 1 | 2 |
| 2012 | 0 | 3 |
| 2013 | 1 | 3 |
| 2014 | 2 | 6 |
| 2015 | 2 | 10 |
| 2016 | 2 | 4 |
| 2017 | 6 | 8 |
| 2018 | 3 | 2 |
| 2019 | 5 | 3 |
| 2020 | 4 | 3 |
| 2021 | 3 | 2 |
| 2022 | 1 | 3 |
| 2023 | 2 | 2 |
| 2024 | 4 | 4 |
| 2025 | 2 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Solar radiation collection system119US 4,054,124 A1977
- Solar energy collector system and method93US 4,172,442 ABio Gas Systems, Inc. · 1979
- Multi-purpose solar collector/heat exchanger69US 4,068,652 A1978
- Solar heat collecting porous building blocks46US 4,069,809 A1978
- Solar heating system42US 4,478,210 A1984