F28D 17/00
Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body
Official title: Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
F28D17/00 (Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body) appears on 352 US grants and 329 published applications in this corpus.
Search patents in F28D- Granted patents
- 352
- Published applications
- 329
- Assignees
- 259
- Inventors
- 815
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 10 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 4 |
| 2002 | 8 | 6 |
| 2003 | 7 | 14 |
| 2004 | 5 | 13 |
| 2005 | 5 | 12 |
| 2006 | 13 | 9 |
| 2007 | 4 | 4 |
| 2008 | 2 | 7 |
| 2009 | 0 | 5 |
| 2010 | 7 | 12 |
| 2011 | 1 | 18 |
| 2012 | 4 | 10 |
| 2013 | 6 | 22 |
| 2014 | 6 | 23 |
| 2015 | 6 | 24 |
| 2016 | 11 | 10 |
| 2017 | 24 | 21 |
| 2018 | 16 | 15 |
| 2019 | 16 | 15 |
| 2020 | 14 | 19 |
| 2021 | 12 | 11 |
| 2022 | 16 | 24 |
| 2023 | 10 | 9 |
| 2024 | 11 | 10 |
| 2025 | 9 | 9 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Beverage preparation machine and cooling module25 Aug 2026US 12,715,751 B2Koninklijke Douwe Egberts B. V.
- Support assembly in a heat storage device17 Mar 2026US 12,578,144 B2Paul Wurth Deutschland GmbH
- Multi-tiered regenerator23 Dec 2025US 12,504,237 B2ThermoLift, Inc.
- Regenerator for foreline heating28 Oct 2025US 12,455,119 B2APPLIED Materials.Inc.
- Decentralized supply and exhaust unit with heat recovery23 Sep 2025US 12,422,154 B2Limited Liability Company Ventilation Systems
- Total heat exchanger and ventilation device10 Sep 2026US 2026/0266502 A1Sharp Kabushiki Kaisha
- Heating Device, Heating System, Heat Storage Device and Heat Storage System2 Jul 2026US 2026/0185740 A1Kraftanlagen Energies & Services SE
- Air heating apparatus12 Mar 2026US 2026/0071828 A1Kyungdong Navien Co., Ltd.
- Heat Exchanger with Heat Exchanger Rods13 Nov 2025US 2025/0347477 A1Lunos Luftungstechnik GmbH Fur Raumluftsysteme
- Coldface-less regenerative thermal and catalytic oxidizers and components and methods of use of same18 Sep 2025US 2025/0288953 A1Teal Sales Incorporated
Most cited
By later US patents
- Compressed-air storage installation100US 4,147,204 ABBC Brown, Boveri & Company, Limited · 1979
- Charging system with a high temperature thermal energy exchange system and method for charging heat storage material of the high temperature thermal energy exchange system with thermal energy76US 10,724,805 B2Siemens Gamesa Renewable Energy A/S · 2020
- Magnetic refrigerant material, regenerator and magnetic refrigerator74US 6,826,915 B2Meomax Co., Ltd. · 2004
- Apparatus and method for storing heat energy72US 8,544,275 B2Research Foundation of the City University of New York · 2013
- Solar power plant and method and/or system of storing energy in a concentrated solar power plant71US 7,954,321 B2Research Foundation of the City University of New York · 2011