F24H 3/027
Using solid fuel
Official title: {using solid fuel}
F24H3/027 (Using solid fuel) appears on 6 US grants and 8 published applications in this corpus.
Search patents in F24H- Granted patents
- 6
- Published applications
- 8
- Assignees
- 7
- Inventors
- 13
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 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 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Heating device with improved efficiency2 Sep 2025US 12,405,010 B2Suter Entfeuchtungstechnik AG
- Hollow draft inducers (draft inducers or hollow inducers)1 Mar 2016US 9,273,873 B1Home Energy Technologies, Inc.
- Forced draft direct vent type room heater9 Jul 2013US 8,480,007 B2Rinnai Corporation
- Forced draft direct vent type room heater2 Jul 2013US 8,474,729 B2Rinnai Corporation
- Heater17 Apr 2012US 8,157,560 B2Hy-C Company, Inc.
- Air-conditioning apparatus for indoor environments25 Sep 2025US 2025/0297750 A1Mcz Group S.P.A.
- Heating device with improved efficiency4 May 2023US 2023/0139453 A1Suter Entfeuchtungstechnik AG
- Apparatus for capturing heat from a stove12 Jan 2017US 2017/0010000 A1
- Apparatus for capturing heat from a stove25 Dec 2014US 2014/0373825 A1
- Heater6 Oct 2011US 2011/0244408 A1Fire Chief, Inc.
Most cited
By later US patents
- Three wall forced air heating unit6US 4,301,783 ACEBU Corporation · 1981
- Forced draft direct vent type room heater3US 8,474,729 B2Rinnai Corporation · 2013
- Hollow draft inducers (draft inducers or hollow inducers)2US 9,273,873 B1Home Energy Technologies, Inc. · 2016
- Forced draft direct vent type room heater1US 8,480,007 B2Rinnai Corporation · 2013