F24B 5/023
Supply of primary air for combustion
Official title: {Supply of primary air for combustion}
F24B5/023 (Supply of primary air for combustion) appears on 59 US grants and 54 published applications in this corpus.
Search patents in F24B- Granted patents
- 59
- Published applications
- 54
- Assignees
- 35
- Inventors
- 115
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 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 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 3 |
| 2016 | 1 | 3 |
| 2017 | 2 | 2 |
| 2018 | 3 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 6 |
| 2021 | 8 | 2 |
| 2022 | 2 | 9 |
| 2023 | 3 | 6 |
| 2024 | 5 | 5 |
| 2025 | 6 | 5 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fire pit10 Mar 2026US 12,571,541 B2AOB Products Company
- System and method for forced air control in a kamado-style cooker25 Nov 2025US 12,480,660 B2Spider Grills, LLC
- Apparatus for controlling an air inlet valve for a solid fuel burner2 Sep 2025US 12,405,008 B2Otter Controls Limited
- Heating device with improved efficiency2 Sep 2025US 12,405,010 B2Suter Entfeuchtungstechnik AG
- Particle heating landscape furnace29 Jul 2025US 12,372,236 B2Haohong Electric Technology (Hubei) Co., Ltd.
- Oven door8 Oct 2026US 2026/0309331 A1Ooni Limited
- Fireplace with a standardized technological base30 Jul 2026US 2026/0218911 A1Stuv S.A.
- Fire pit2 Jul 2026US 2026/0185715 A1AOB Products Company
- Wood chip combustion furnace4 Jun 2026US 2026/0153240 A1Haohong Electric Technology (Hubei) Co., Ltd.
- Collapsible and portable container18 Dec 2025US 2025/0382100 A1PackFire, Inc.
Most cited
By later US patents
- Wood burning stove35US 4,136,662 A1979
- Jacketed wood stove34US 4,520,791 A1985
- Combustion chamber for charcoal stove18US 8,893,703 B2Colorado State University Research Foundation · 2014
- Heating device16US 5,009,219 ALiets Agrarische Technieken B.V. · 1991
- Portable stove and/or fire pit13US 10,746,408 B12020