F24B 1/189
Characterised by air-handling means, i.e. of combustion-air, heated-air, or flue-gases
Official title: characterised by air-handling means, i.e. of combustion-air, heated-air, or flue-gases, e.g. draught control dampers (condition responsive controls for regulating combustion F24B1/187; by use of heat exchange means F24B1/188)
F24B1/189 (Characterised by air-handling means, i.e. of combustion-air, heated-air, or flue-gases) appears on 207 US grants and 139 published applications in this corpus.
Search patents in F24B- Granted patents
- 207
- Published applications
- 139
- Assignees
- 88
- Inventors
- 328
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 12 | 0 |
| 1981 | 22 | 0 |
| 1982 | 6 | 0 |
| 1983 | 10 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 3 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 4 |
| 2013 | 3 | 6 |
| 2014 | 2 | 8 |
| 2015 | 2 | 8 |
| 2016 | 5 | 6 |
| 2017 | 3 | 6 |
| 2018 | 5 | 15 |
| 2019 | 7 | 9 |
| 2020 | 13 | 17 |
| 2021 | 7 | 12 |
| 2022 | 8 | 7 |
| 2023 | 8 | 6 |
| 2024 | 7 | 9 |
| 2025 | 7 | 7 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Unpowered smokeless stove16 Jun 2026US 12,655,983 B2Fujian Ecotop New Material Co., Ltd.
- Portable wood stove19 May 2026US 12,631,337 B1
- Fire pit support14 Apr 2026US 12,601,497 B2Breeo, LLC
- Electronic closed-loop control device for fireplaces comprising a lower combustion system31 Mar 2026US 12,590,703 B2Maxitrol Company
- Fireplace retrofit construction27 Jan 2026US 12,535,217 B2Merediths' Inc.
- External Natural Passive Airflow Management and Amplification System for Optimization of Outdoor Combustion Systems, Firepits, Barbecues, and Campfires13 Aug 2026US 2026/0235291 A1
- Electronic closed-loop control device for fireplaces comprising a lower combustion system23 Jul 2026US 2026/0210553 A1Maxitrol Company
- Heat distributor for a barbecue grill2 Apr 2026US 2026/0090674 A1Acewill Corporation
- Fire pit system15 Jan 2026US 2026/0016166 A1Solo Brands, LLC
- Smokeless fire pit ring1 Jan 2026US 2026/0002674 A1
Most cited
By later US patents
- Draft hood locating device for combustion apparatus117US 5,752,500 ALennox Industries Inc. · 1998
- Apparatus and method for reducing particulate emissions from combustion processes63US 5,702,244 AThermal Energy Systems, Incorporated · 1997
- Cooking grill using pellet fuel59US 9,814,354 B2Crystal Spring Colony Farms Ltd. · 2017
- Gas log fireplace system57US 5,575,274 A1996
- Fireplace stove39US 4,141,336 A1979