F28F 21/066
For domestic or space-heating systems
Official title: {for domestic or space-heating systems}
F28F21/066 (For domestic or space-heating systems) appears on 19 US grants and 23 published applications in this corpus.
Search patents in F28F- Granted patents
- 19
- Published applications
- 23
- Assignees
- 21
- Inventors
- 70
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 1 |
| 2018 | 3 | 3 |
| 2019 | 1 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for manufacturing counter flow total heat exchanger10 Jun 2025US 12,326,303 B2Gaontech Co., Ltd.
- Radiant cooling devices and methods of forming the same17 Oct 2023US 11,788,800 B2President and Fellows of Harvard College
- Rotating heat exchanger with improved heat transfer efficiency11 Oct 2022US 11,466,938 B2Flexit Sverige AB
- Hydronic panel heating or cooling system28 Sep 2021US 11,131,464 B2Hall Labs LLC
- Composite storage tank module and arrangement30 Jul 2019US 10,364,993 B2
- Heat exchanger, ventilator, and method for manufacturing heat exchanger7 May 2026US 2026/0126206 A1Daikin Industries, Ltd.
- A phase change material (pcm) module for a heat exchanger apparatus for temperature regulation in a building25 Sep 2025US 2025/0297814 A1Syddansk Universitet
- Foam Hydronic Boards26 Jun 2025US 2025/0207872 A1
- Heat exchanger, ventilator, and method for manufacturing heat exchanger10 Oct 2024US 2024/0337409 A1Daikin Industries, Ltd.
- Heat exchanger and air treatment device7 Mar 2024US 2024/0077215 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Plate-shaped heating element, in particular for floor heating28US 5,080,166 AItrag AG · 1992
- To heat exchanger15US 6,378,604 B12002
- Multi-panelled heat exchanger11US 5,499,676 A1996
- Heater for installation on the floor or in the side walls of a motor vehicle8US 4,662,561 ASueddeutsche Kuehlerfabrik Julius Fr. Behr GmbH & Co. KG · 1987
- Heat source cover8US 5,454,512 ANestor Martin S.A. · 1995