F01K 3/14
Plants characterised by the use of steam or heat accumulators, or intermediate
Official title: having both steam accumulator and heater, e.g. superheating accumulator (steam superheaters per se F22G)
F01K3/14 (Plants characterised by the use of steam or heat accumulators, or intermediate) appears on 47 US grants and 59 published applications in this corpus.
Search patents in F01K- Granted patents
- 47
- Published applications
- 59
- Assignees
- 39
- Inventors
- 139
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 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 | 1 | 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 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 2 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 3 |
| 2013 | 0 | 1 |
| 2014 | 5 | 4 |
| 2015 | 2 | 11 |
| 2016 | 6 | 2 |
| 2017 | 3 | 5 |
| 2018 | 4 | 4 |
| 2019 | 4 | 1 |
| 2020 | 2 | 2 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
| 2023 | 1 | 4 |
| 2024 | 4 | 5 |
| 2025 | 4 | 5 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Two-phase thermal pump15 Sep 2026US 12,735,999 B2Rolls-Royce North American Technologies Inc.
- Power generation facility28 Jul 2026US 12,692,803 B2Kabushiki Kaisha Toshiba
- Thermal energy storage systems with an energy emitting surface21 Jul 2026US 12,687,120 B1Rondo Energy, Inc.
- Exothermic reaction energy system23 Jun 2026US 12,662,950 B2Advantron Technologies, LLC
- System and method for thermal energy storage16 Dec 2025US 12,497,911 B2Nooter/Eriksen, Inc.
- Energy storage and utilisation system12 Feb 2026US 2026/0043541 A1Graphite Energy (Assets) Pty Limited
- System and method for thermal energy storage18 Dec 2025US 2025/0382902 A1Nooter/Eriksen, Inc.
- Thermal energy storage apparatus18 Sep 2025US 2025/0290708 A1Graphite Solar Power Pty Limited
- Two-phase thermal pump12 Jun 2025US 2025/0188853 A1Rolls-Royce North American Technologies Inc.
- Thermal energy storage system and method with heat recovery steam generator5 Jun 2025US 2025/0179943 A1Nooter/Eriksen, Inc.
Most cited
By later US patents
- Heat storage system with combined heat storage device88US 5,269,145 ADeutsche Forschungsanstalt fuer Luft - und Raumfahrt e. V. · 1993
- Thermoelectric energy storage system with an intermediate storage tank and method for storing thermoelectric energy62US 8,904,793 B2ABB Research Ltd. · 2014
- Method and apparatus for peak-load coverage and stop-gap reserve in steam power plants60US 4,164,848 A1979
- Advanced power recovery and energy conversion systems and methods of using same32US 7,827,791 B2TAS, Ltd. · 2010
- Control of power generation system having thermal energy and thermodynamic engine components9US 8,224,495 B2Cool Energy, Inc. · 2012