F24B 1/026
With several combustion zones
Official title: {with several combustion zones}
F24B1/026 (With several combustion zones) appears on 51 US grants and 34 published applications in this corpus.
Search patents in F24B- Granted patents
- 51
- Published applications
- 34
- Assignees
- 23
- Inventors
- 78
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 3 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 4 |
| 2015 | 1 | 3 |
| 2016 | 0 | 3 |
| 2017 | 1 | 3 |
| 2018 | 3 | 0 |
| 2019 | 3 | 6 |
| 2020 | 2 | 1 |
| 2021 | 5 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronic closed-loop control device for fireplaces comprising a lower combustion system31 Mar 2026US 12,590,703 B2Maxitrol Company
- Heating device with improved efficiency2 Sep 2025US 12,405,010 B2Suter Entfeuchtungstechnik AG
- Firebox floor of a furnace for combusting wood18 Jul 2023US 11,703,222 B2Heatmaster Furnaces Inc.
- Enhanced pellet fueled cooking device19 Jul 2022US 11,391,464 B2W. C. Bradley Company
- Combi stove and use of a combi stove13 Jul 2021US 11,060,733 B2Aduro A/S
- Electronic closed-loop control device for fireplaces comprising a lower combustion system23 Jul 2026US 2026/0210553 A1Maxitrol Company
- Electronic closed-loop control device for fireplaces comprising a lower combustion system5 Sep 2024US 2024/0295324 A1Maxitrol Company
- Home and industrial pellet burning system31 Aug 2023US 2023/0272913 A1
- Heating device with improved efficiency4 May 2023US 2023/0139453 A1Suter Entfeuchtungstechnik AG
- Firebox Floor of a Furnace for Combusting Wood23 Dec 2021US 2021/0396385 A1Heatmaster Furnaces Inc.
Most cited
By later US patents
- Tag assemblies27US 5,016,369 ASterimatic Holdings Limited · 1991
- Clean burning exterior retrofit system for solid fuel heating appliances26US 4,582,044 AVermont Castings, Inc. · 1986
- Solid fuel heating appliances22US 4,646,712 AVermont Castings, Inc. · 1987
- High efficiency solid fuel burning stove18US 4,856,491 AVermont Castings, Inc. · 1989
- Secondary combustion device for woodburning stove17US 4,672,946 AOrrville Products, Inc. · 1987