F28D 17/02
Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body
Official title: using rigid bodies, e.g. of porous material
F28D17/02 (Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body) appears on 180 US grants and 168 published applications in this corpus.
Search patents in F28D- Granted patents
- 180
- Published applications
- 168
- Assignees
- 144
- Inventors
- 453
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 3 |
| 2003 | 3 | 3 |
| 2004 | 2 | 7 |
| 2005 | 1 | 8 |
| 2006 | 8 | 9 |
| 2007 | 2 | 2 |
| 2008 | 1 | 3 |
| 2009 | 0 | 3 |
| 2010 | 5 | 7 |
| 2011 | 0 | 11 |
| 2012 | 2 | 4 |
| 2013 | 3 | 7 |
| 2014 | 2 | 16 |
| 2015 | 0 | 15 |
| 2016 | 3 | 6 |
| 2017 | 14 | 9 |
| 2018 | 6 | 7 |
| 2019 | 6 | 7 |
| 2020 | 6 | 7 |
| 2021 | 5 | 5 |
| 2022 | 8 | 10 |
| 2023 | 3 | 7 |
| 2024 | 8 | 5 |
| 2025 | 7 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Regenerative post-combustion device, coating installation, and method for coating objects29 Jul 2025US 12,372,234 B2Eisenmann Environmental Technology GMBH
- 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
- Heat Exchanger with Heat Exchanger Rods13 Nov 2025US 2025/0347477 A1Lunos Luftungstechnik GmbH Fur Raumluftsysteme
- Decentralized supply and exhaust unit with heat recovery26 Jun 2025US 2025/0207795 A1Limited Liability Company Ventilation Systems
- Heat and moisture exchangers19 Jun 2025US 2025/0195820 A1ResMed Pty Ltd
Most cited
By later US patents
- Vacuum-packing method and apparatus62US 4,164,111 A1979
- Non-polluting open Brayton cycle automotive power unit56US 5,873,250 A1999
- Power plant with steam cycle and with a high temperature thermal energy exchange system and method for manufacturing the power plant42US 10,247,044 B2Siemens Aktiengesellschaft · 2019
- High temperature thermal energy exchange system with horizontal heat exchange chamber and method for exchanging thermal energy by using the high temperature thermal energy exchange system40US 10,563,927 B2Siemens Gamesa Renewable Energy A/S · 2020
- Regenerative heat exchangers40US 4,449,573 ASvenska Rotor Maskiner Aktiebolag · 1984