F24B 1/1886
The heat exchanger comprising only tubular air ducts within the fire
Official title: {the heat exchanger comprising only tubular air ducts within the fire}
F24B1/1886 (The heat exchanger comprising only tubular air ducts within the fire) appears on 113 US grants and 6 published applications in this corpus.
Search patents in F24B- Granted patents
- 113
- Published applications
- 6
- Assignees
- 27
- Inventors
- 130
- Latest grant
- 21 Jun 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 10 | 0 |
| 1978 | 20 | 0 |
| 1979 | 12 | 0 |
| 1980 | 15 | 0 |
| 1981 | 15 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Remote monitoring of fired heaters21 Jun 2022US 11,365,886 B2Uop LLC
- Device for improving combustion in a fireplace12 Dec 2017US 9,841,193 B2Institut Polytechnique De Grenoble
- Fireplace heat exchange device10 Aug 1999US 5,934,270 A
- Regenerator with tube system, particularly adapted for fireplaces and the like17 Feb 1998US 5,718,218 A
- Heating device23 Apr 1991US 5,009,219 ALiets Agrarische Technieken B.V.
- Modular oven for multiple use8 Jul 2021US 2021/0207809 A1
- Fire and Heat Display28 Mar 2019US 2019/0093839 A1
- Remote monitoring of fired heaters20 Dec 2018US 2018/0363914 A1Uop LLC
- Device for improving combustion in a fireplace29 Oct 2015US 2015/0308691 A1Institut Polytechnique De Grenoble
- Oven having an enclosed heat exchange zone11 Sep 2014US 2014/0251299 A1
Most cited
By later US patents