F25B 30/04
Heat pumps: of the sorption type
Official title: of the sorption type
F25B30/04 (Heat pumps: of the sorption type) appears on 154 US grants and 139 published applications in this corpus.
Search patents in F25B- Granted patents
- 154
- Published applications
- 139
- Assignees
- 118
- Inventors
- 332
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 11 | 0 |
| 1983 | 9 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 2 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 2 | 0 |
| 2009 | 2 | 1 |
| 2010 | 0 | 5 |
| 2011 | 0 | 5 |
| 2012 | 2 | 6 |
| 2013 | 0 | 9 |
| 2014 | 3 | 11 |
| 2015 | 4 | 13 |
| 2016 | 10 | 14 |
| 2017 | 13 | 9 |
| 2018 | 9 | 10 |
| 2019 | 15 | 11 |
| 2020 | 6 | 11 |
| 2021 | 3 | 8 |
| 2022 | 6 | 4 |
| 2023 | 5 | 4 |
| 2024 | 6 | 5 |
| 2025 | 2 | 5 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Adsorption heat pump20 Jan 2026US 12,529,500 B2Atomis Inc.
- Thermal regulation system22 Jul 2025US 12,366,389 B2Gobi Technologies Inc.
- Coupling system of supercritical carbon dioxide cycle power generation and lithium extraction from brine20 May 2025US 12,305,259 B2BYD Company Limited
- Hybrid fossil fuel-electric multi-function heat pump24 Dec 2024US 12,173,910 B2Stone Mountain Technologies, Inc.
- System and method for work recovery in a heat pump12 Nov 2024US 12,140,346 B2Exergyn Ltd.
- Heat pump assisted carbon capture from internal combustion engine powered systems4 Dec 2025US 2025/0367592 A1Aramco Services Company
- Looped centrifugal adsorption heat pump14 Aug 2025US 2025/0257911 A1
- Absorption heat pump for improved performance in high delivery water temperature operating conditions6 Mar 2025US 2025/0075951 A1Ariston S.P.A.
- Cryogenic adsorption refrigerator23 Jan 2025US 2025/0027690 A1Chase Research Cryogenics Limited
- Sorption heat pump and sorption cycle16 Jan 2025US 2025/0020372 A1
Most cited
By later US patents
- High efficiency absorption heat pump and methods of use143US 7,313,926 B2Rexorce Thermionics, Inc. · 2008
- System and method for heat recovery from geothermal source of heat102US 7,124,584 B1General Electric Company · 2006
- Heat pump assisted solar powered absorption system66US 4,070,870 ABorg-Warner Corporation · 1978
- Method and apparatus for transferring energy in an absorption heating and cooling system65US 4,152,901 AAktiebolaget Carl Munters · 1979
- Method and apparatus for co-generation of electrical power and absorption-type heat pump air conditioning40US 4,380,909 AChevron Research Company · 1983