F23D 14/12
Radiant burners
F23D14/12 (Radiant burners) appears on 619 US grants and 548 published applications in this corpus.
Search patents in F23D- Granted patents
- 619
- Published applications
- 548
- Assignees
- 364
- Inventors
- 1,203
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 8 | 0 |
| 1981 | 11 | 0 |
| 1982 | 9 | 0 |
| 1983 | 10 | 0 |
| 1984 | 7 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 14 | 0 |
| 1988 | 7 | 0 |
| 1989 | 13 | 0 |
| 1990 | 10 | 0 |
| 1991 | 9 | 0 |
| 1992 | 16 | 0 |
| 1993 | 12 | 0 |
| 1994 | 12 | 0 |
| 1995 | 15 | 0 |
| 1996 | 12 | 0 |
| 1997 | 9 | 0 |
| 1998 | 14 | 0 |
| 1999 | 11 | 0 |
| 2000 | 13 | 0 |
| 2001 | 10 | 1 |
| 2002 | 15 | 10 |
| 2003 | 13 | 16 |
| 2004 | 9 | 19 |
| 2005 | 10 | 11 |
| 2006 | 12 | 20 |
| 2007 | 5 | 13 |
| 2008 | 1 | 15 |
| 2009 | 3 | 13 |
| 2010 | 12 | 18 |
| 2011 | 8 | 17 |
| 2012 | 8 | 17 |
| 2013 | 13 | 16 |
| 2014 | 6 | 25 |
| 2015 | 14 | 31 |
| 2016 | 20 | 38 |
| 2017 | 21 | 29 |
| 2018 | 36 | 35 |
| 2019 | 21 | 44 |
| 2020 | 32 | 36 |
| 2021 | 26 | 29 |
| 2022 | 28 | 17 |
| 2023 | 13 | 20 |
| 2024 | 14 | 31 |
| 2025 | 14 | 17 |
| 2026 | 14 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F23D 14/14Using screens or perforated plates249
- F23D 14/16Using permeable blocks144
- F23D 14/18Using catalysis for flameless combustion98
- F23D 14/125Heating a wall surface to incandescence75
- F23D 14/126Cooperating with refractory wall surfaces70
- F23D 14/151With radiation intensifying means other than screens or perforated plates49
Recent patents
- Combustion heater and air conditioning system6 Oct 2026US 12,753,936 B2Daikin Industries, Ltd.
- Thermal processing apparatus with a heating device operated with hydrogen, sustainable cremation, free of CO215 Sep 2026US 12,736,220 B2Albert Hesse Familienstiftung
- Energy-saving assembly for indirect heating systems1 Sep 2026US 12,723,752 B2Industrial Technology Research Institute
- Burner and water heater comprising same25 Aug 2026US 12,716,615 B2Kyungdong Navien Co., Ltd.
- Ceramic film, method for manufacturing the same, emitter, and thermophotovoltaic power generation device14 Jul 2026US 12,683,536 B2NEC Corporation
- Fast-heating gas space heater10 Sep 2026US 2026/0266458 A1Junsky Appliances Limited
- Dual-burner firepit20 Aug 2026US 2026/0243434 A1
- Burner and water heating apparatus including the same2 Jul 2026US 2026/0185739 A1Kyungdong Navien Co., Ltd.
- Portable heating device21 May 2026US 2026/0139841 A1Kyote Fire, LLC
- Gas burner unit and heat-cooking apparatus provided with the same19 Feb 2026US 2026/0049714 A1Rinnai Corporation
Most cited
By later US patents
- Infrared gas grill142US 4,321,857 A1982
- Non-catalytic porous-phase combustor120US 4,643,667 AInstitute of Gas Technology · 1987
- High temperature surface combustion burner84US 4,673,349 ANGK Insulators, Ltd. · 1987
- Uniform-burning matrix burner81US 6,183,241 B2Midwest Research Institute · 2001
- Forced-air gas burner79US 4,752,213 AGaz de France · 1988