F24H 9/2092
Using solid fuel
Official title: {using solid fuel}
F24H9/2092 (Using solid fuel) appears on 12 US grants and 8 published applications in this corpus.
Search patents in F24H- Granted patents
- 12
- Published applications
- 8
- Assignees
- 7
- Inventors
- 14
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Furnace30 Jun 2026US 12,669,266 B2Fire Chief Industries LLC
- Heating device with improved efficiency2 Sep 2025US 12,405,010 B2Suter Entfeuchtungstechnik AG
- Furnace6 Feb 2024US 11,892,200 B2Fire Chief Industries LLC
- Furnace13 Oct 2020US 10,801,738 B2Fire Chief Industries LLC
- Furnace16 Jun 2020US 10,684,040 B2Fire Chief Industries LLC
- Furnace30 May 2024US 2024/0175606 A1Fire Chief Industries LLC
- Heating device with improved efficiency4 May 2023US 2023/0139453 A1Suter Entfeuchtungstechnik AG
- Furnace1 Oct 2020US 2020/0309415 A1Fire Chief Industries LLC
- Furnace14 Feb 2019US 2019/0049122 A1Fire Chief Industries LLC
- Furnace1 Mar 2018US 2018/0058724 A1Fire Chief Industries LLC
Most cited
By later US patents
- Wood burning stove with forced air heating25US 4,140,101 A1979
- Method and apparatus for automatic furnace20US 4,019,492 A1977
- Control circuit for a forced-air heating system12US 4,842,190 AOrtech Industries, Inc. · 1989
- Hot air furnace3US 3,982,525 A1976
- Stove blower control accessory3US 4,319,713 AEagle-Picher Industries, Inc. · 1982