F01K 7/12
Of condensing type
Official title: of condensing type
F01K7/12 (Of condensing type) appears on 18 US grants and 18 published applications in this corpus.
Search patents in F01K- Granted patents
- 18
- Published applications
- 18
- Assignees
- 18
- Inventors
- 42
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 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 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 1 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 2 |
| 2023 | 3 | 4 |
| 2024 | 2 | 2 |
| 2025 | 3 | 3 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Water-injected steam engine25 Feb 2025US 12,234,752 B2Enexsys Research Inc.
- Apparatus and method for converting thermal energy11 Feb 2025US 12,221,907 B2Enerscale GmbH
- Hydrogen-oxygen fueled powerplant with water and heat recovery4 Feb 2025US 12,215,608 B2Rtx Corporation
- Amine CO2 separation process integrated with hydrocarbons processing24 Sep 2024US 12,097,464 B2ExxonMobil Chemical Patents Inc.
- Apparatus and method for converting thermal energy11 Jun 2024US 12,006,849 B2Enerscale GmbH
- Thermal energy storage system coupled to a solid oxide system and a thermal cascade heat exchanger25 Dec 2025US 2025/0389034 A1Rondo Energy, Inc.
- Heat Engine7 Aug 2025US 2025/0250927 A1
- Steam turbine power generation facility using oxygen-hydrogen combustion24 Apr 2025US 2025/0129728 A1Kabushiki Kaisha Toshiba
- Water-injected steam engine10 Oct 2024US 2024/0337204 A1Enexsys Research Inc.
- Apparatus and method for converting thermal energy16 May 2024US 2024/0159169 A1Enerscale GmbH
Most cited
By later US patents
- Condensing vapor heat engine with two-phase compression and constant volume superheating11US 4,055,951 AD-Cycle Associates · 1977
- Hydrogen-oxygen fueled powerplant with water and heat recovery6US 11,828,200 B2Raytheon Technologies Corporation · 2023
- Two stroke steam-to-vacuum engine2US 6,951,107 B12005
- Quatro-generation system1US 10,138,758 B2Mitsubishi Heavy Industries, Ltd. · 2018
- Air start steam engine1US 9,816,399 B2Averill Partners, LLC · 2017