F23D 11/443
Heated by the main burner flame
Official title: {heated by the main burner flame}
F23D11/443 (Heated by the main burner flame) appears on 91 US grants and 58 published applications in this corpus.
Search patents in F23D- Granted patents
- 91
- Published applications
- 58
- Assignees
- 65
- Inventors
- 177
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 3 | 2 |
| 2004 | 3 | 4 |
| 2005 | 5 | 2 |
| 2006 | 0 | 3 |
| 2007 | 0 | 5 |
| 2008 | 0 | 1 |
| 2009 | 2 | 3 |
| 2010 | 3 | 2 |
| 2011 | 1 | 2 |
| 2012 | 3 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 6 |
| 2015 | 2 | 7 |
| 2016 | 5 | 1 |
| 2017 | 2 | 2 |
| 2018 | 3 | 2 |
| 2019 | 3 | 3 |
| 2020 | 3 | 2 |
| 2021 | 2 | 1 |
| 2022 | 2 | 2 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Burner system and method for providing thermal energy12 May 2026US 12,624,830 B2Siqens GmbH
- Catalytic heating systems comprising dual-mode liquid fuel vaporizers and methods of operating thereof6 Aug 2024US 12,055,289 B2Proof Energy Inc.
- Torch and hood assembly comprising a chimney and double plated enclosure, provision for atomizing fuel for easy combustion, and provision for auto-ignition of fuel14 May 2024US 11,982,443 B1Agricultural Flamming Innovations, LLC
- Liquefied fuel combustor with integrated evaporator device and associated method15 Nov 2022US 11,499,711 B28801541 Canada Inc.
- Method for a perforated flame holder with adjustable fuel nozzle15 Feb 2022US 11,248,786 B2Clearsign Technologies Corporation
- Gas preheating torch23 Jan 2025US 2025/0027646 A1Mit
- Catalytic heating systems comprising dual-mode liquid fuel vaporizers and methods of operating thereof4 May 2023US 2023/0132692 A1Proof Energy Inc.
- Fuel-Flexible Combustor28 Jul 2022US 2022/0235931 A1Aspen Products Group, Inc.
- Burner system and method for providing thermal energy24 Feb 2022US 2022/0057083 A1Siqens GmbH
- Liquefied fuel combustor with integrated evaporator device and associated method7 Jan 2021US 2021/0003279 A18801541 Canada Inc.
Most cited
By later US patents
- Capillary feed boiler50US 5,692,095 AAllports, Inc. · 1997
- Cleaning apparatus for fuel burner45US 4,703,888 AIsuzu Motors Limited · 1987
- Integrated power module45US 6,033,793 AHydrogen Burner Technology, Inc. · 2000
- Liquid vaporization and pressurization apparatus and methods41US 6,162,046 AAllports LLC International · 2000
- Method and apparatus for dosing an air-fuel mixture in burners having evaporating tubes40US 4,364,724 AForenade Farbiksverken · 1982