F28D 20/003
Heat storage plants or apparatus in general: using thermochemical reactions
Official title: {using thermochemical reactions}
F28D20/003 (Heat storage plants or apparatus in general: using thermochemical reactions) appears on 274 US grants and 260 published applications in this corpus.
Search patents in F28D- Granted patents
- 274
- Published applications
- 260
- Assignees
- 205
- Inventors
- 765
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 1 |
| 2003 | 3 | 0 |
| 2004 | 2 | 2 |
| 2005 | 0 | 4 |
| 2006 | 1 | 1 |
| 2007 | 1 | 3 |
| 2008 | 0 | 3 |
| 2009 | 1 | 4 |
| 2010 | 1 | 9 |
| 2011 | 3 | 12 |
| 2012 | 2 | 6 |
| 2013 | 3 | 11 |
| 2014 | 7 | 11 |
| 2015 | 6 | 11 |
| 2016 | 12 | 22 |
| 2017 | 14 | 21 |
| 2018 | 11 | 19 |
| 2019 | 16 | 23 |
| 2020 | 18 | 16 |
| 2021 | 16 | 10 |
| 2022 | 8 | 14 |
| 2023 | 13 | 19 |
| 2024 | 10 | 12 |
| 2025 | 12 | 16 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compacted thermochemical heat storage bodies29 Sep 2026US 12,747,381 B2Caldic Benelux NV
- High enthalpy thermochemical energy storage materials28 Jul 2026US 12,693,078 B2Battelle Savannah River Alliance, LLC
- Fluid reactor device and method for operating a fluid reactor device7 Jul 2026US 12,674,628 B2Dürr Systems AG
- Heat generation device, heat utilization system and film-like heat generation element5 May 2026US 12,618,592 B2Clean Planet Inc.
- Energy supply system13 Jan 2026US 12,522,096 B2Kraftblock GmbH
- Fluid reactor device and method for operating a fluid reactor device1 Oct 2026US 2026/0298550 A1Dürr Systems AG
- Heat reclamation multiple waste tanks at each stage10 Sep 2026US 2026/0266562 A1Tokyo Electron Limited
- Thermochemical energy storage system using earth-abundant materials triggered by addition of water and method therefor27 Aug 2026US 2026/0251401 A1Earthermic Technologies, Inc.
- Electric energy storage device9 Jul 2026US 2026/0196960 A1TEXEL Energy AB
- Electric energy storage device9 Jul 2026US 2026/0197908 A1TEXEL Energy AB
Most cited
By later US patents
- Gas powered motors72US 4,449,372 A1984
- Adsorption thermal storage apparatus and adsorption thermal storage system including the same66US 5,005,371 ANishiyodo Air Conditioner Co., Ltd. · 1991
- Cooling apparatus for electronic and computer components59US 5,271,239 ARocky Research · 1993
- Heat pump energized by low-grade heat source57US 4,637,218 A1987
- Heat transfer apparatus and methods for solid-vapor sorption systems55US 5,477,706 ARocky Research · 1995