F24H 8/003
Fluid heaters characterised by means for extracting latent heat from flue gases
Official title: {having means for moistening the combustion air with condensate from the combustion gases}
F24H8/003 (Fluid heaters characterised by means for extracting latent heat from flue gases) appears on 17 US grants and 6 published applications in this corpus.
Search patents in F24H- Granted patents
- 17
- Published applications
- 6
- Assignees
- 14
- Inventors
- 33
- Latest grant
- 14 May 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Straight fin tube with bended fins condensing heat exchanger14 May 2019US 10,288,315 B2Suzhou CQ Heat Exchanger Co., Ltd.
- Heat exchangers, boilers, and systems incorporating the same6 Oct 2015US 9,151,184 B2
- Integrated contact condensing water heater30 Sep 2014US 8,844,471 B2Gas Technology Institute
- High efficiency direct-contact high temperature water heater19 Oct 1999US 5,967,137 AChaudiere Seccacier
- Air heater and humidifier using direct contact heating principles and method of operation23 Jun 1998US 5,769,067 A
- Method and arrangement19 May 2022US 2022/0154974 A1
- Straight Fin Tube with Bended Fins Condensing Heat Exchanger1 Mar 2018US 2018/0058718 A1Suzhou CQ Heat Exchanger Co., Ltd.
- Heat Recovery Method and Apparatus29 Oct 2015US 2015/0308711 A1Idalex Technologies, Inc.
- Heat exchangers, boilers, and systems incorporating the same11 Sep 2014US 2014/0250888 A1
- Integrated contact condensing water heater15 Dec 2011US 2011/0303164 A1Gas Technology Institute
Most cited
By later US patents
- Method and arrangement for condensing flue gases40US 4,799,941 AScandiaconsult AB · 1989
- Vapor pump employing counterflow exchange between air and combustion products without an intermediate fluid21US 5,178,210 AGaz de France · 1993
- Condensing furnace with corrosion suppression15US 4,603,681 ARaytheon Company · 1986
- Boilers11US 4,909,190 AStelrad Group Limited · 1990
- Method for regenerative heat exchanger11US 5,482,108 ASvenska Rotor Maskiner AB · 1996