F01K 3/12
Plants characterised by the use of steam or heat accumulators, or intermediate
Official title: having two or more accumulators
F01K3/12 (Plants characterised by the use of steam or heat accumulators, or intermediate) appears on 209 US grants and 264 published applications in this corpus.
Search patents in F01K- Granted patents
- 209
- Published applications
- 264
- Assignees
- 119
- Inventors
- 349
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 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 | 2 | 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 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 3 |
| 2008 | 2 | 3 |
| 2009 | 0 | 3 |
| 2010 | 1 | 7 |
| 2011 | 4 | 6 |
| 2012 | 2 | 7 |
| 2013 | 3 | 7 |
| 2014 | 8 | 13 |
| 2015 | 4 | 16 |
| 2016 | 10 | 15 |
| 2017 | 15 | 15 |
| 2018 | 16 | 21 |
| 2019 | 26 | 17 |
| 2020 | 11 | 12 |
| 2021 | 18 | 10 |
| 2022 | 11 | 21 |
| 2023 | 19 | 26 |
| 2024 | 28 | 28 |
| 2025 | 12 | 23 |
| 2026 | 13 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermal energy storage system and method with heat recovery steam generator1 Sep 2026US 12,723,525 B2Nooter/Eriksen, Inc.
- Thermodynamic cycle system with thermal plant integration1 Sep 2026US 12,723,542 B2Malta Inc.
- Comprehensive energy utilization system for coupling carbon capture, energy storage, and thermal power generation18 Aug 2026US 12,710,000 B2Exax Energy Technology (Shenzhen) Co., Ltd
- Thermal energy storage system coupled with thermal power cycle systems2 Jun 2026US 12,644,396 B2Rondo Energy, Inc.
- Energy storage system and alumina calcination applications21 Apr 2026US 12,607,136 B2Rondo Energy, Inc.
- Comprehensive energy utilization system for coupling carbon capture, energy storage, and thermal power generation9 Jul 2026US 2026/0193993 A1Exax Energy Technology (Shenzhen) Co., Ltd
- Thermal energy storage system coupled with steam cracking system25 Jun 2026US 2026/0176985 A1Rondo Energy, Inc.
- Peak load and frequency regulation system for thermal power unit25 Jun 2026US 2026/0176987 A1Xi'an Thermal Power Research Institute Co., Ltd.
- Energy storage system and alumina calcination applications18 Jun 2026US 2026/0168411 A1Rondo Energy, Inc.
- Thermal energy storage system11 Jun 2026US 2026/0160188 A1Technion Research & Development Foundation Limited
Most cited
By later US patents
- Thermodynamic power conversion cycle and methods of use131US 7,900,450 B2Echogen Power Systems, LLC · 2011
- High-temperature dual-source organic Rankine cycle with gas separations92US 8,046,999 B2Doty Scientific, Inc. · 2011
- Heat storage system with combined heat storage device88US 5,269,145 ADeutsche Forschungsanstalt fuer Luft - und Raumfahrt e. V. · 1993
- Energy storage71US 8,656,712 B2Isentropic Limited · 2014
- Pumped heat energy storage system with convey able solid thermal storage media directly thermally coupled to working fluid67US 10,775,111 B2Dresser-Rand Company · 2020