F23D
Burners
F23D (Burners) appears on 8,563 US grants and 7,065 published applications in this corpus.
Search patents in F23D- Granted patents
- 8,563
- Published applications
- 7,065
- Assignees
- 2,847
- Inventors
- 13,767
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 99 | 0 |
| 1977 | 85 | 0 |
| 1978 | 94 | 0 |
| 1979 | 75 | 0 |
| 1980 | 77 | 0 |
| 1981 | 99 | 0 |
| 1982 | 96 | 0 |
| 1983 | 131 | 0 |
| 1984 | 121 | 0 |
| 1985 | 131 | 0 |
| 1986 | 130 | 0 |
| 1987 | 119 | 0 |
| 1988 | 122 | 0 |
| 1989 | 122 | 0 |
| 1990 | 125 | 0 |
| 1991 | 93 | 0 |
| 1992 | 142 | 0 |
| 1993 | 129 | 0 |
| 1994 | 154 | 0 |
| 1995 | 171 | 0 |
| 1996 | 158 | 0 |
| 1997 | 147 | 0 |
| 1998 | 190 | 0 |
| 1999 | 226 | 0 |
| 2000 | 264 | 0 |
| 2001 | 216 | 78 |
| 2002 | 196 | 163 |
| 2003 | 180 | 224 |
| 2004 | 187 | 268 |
| 2005 | 184 | 247 |
| 2006 | 125 | 239 |
| 2007 | 99 | 250 |
| 2008 | 72 | 237 |
| 2009 | 106 | 290 |
| 2010 | 146 | 356 |
| 2011 | 152 | 323 |
| 2012 | 174 | 327 |
| 2013 | 227 | 314 |
| 2014 | 215 | 351 |
| 2015 | 261 | 307 |
| 2016 | 263 | 396 |
| 2017 | 290 | 344 |
| 2018 | 279 | 345 |
| 2019 | 327 | 319 |
| 2020 | 315 | 312 |
| 2021 | 260 | 242 |
| 2022 | 252 | 267 |
| 2023 | 204 | 237 |
| 2024 | 193 | 269 |
| 2025 | 186 | 215 |
| 2026 | 154 | 145 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- F23D 14/00Burners for combustion of a gas4,754
- F23D 2900/00Special features of, or arrangements for burners using fluid fuels or solidIndexing code1,939
- F23D 11/00Burners using a direct spraying action of liquid droplets or vaporised liquid1,877
- F23D 1/00Burners for combustion of pulverulent fuel608
- F23D 17/00Burners for combustion simultaneously or alternately of gaseous or liquid or pulverulent585
- F23D 2203/00Gaseous fuel burnersIndexing code561
- F23D 3/00Burners using capillary action555
- F23D 2209/00Safety arrangementsIndexing code361
All 26 main groupsShow fewer
- F23D 2207/00Ignition devices associated with burnerIndexing code335
- F23D 2212/00Burner material specificationsIndexing code282
- F23D 23/00Assemblies of two or more burners244
- F23D 99/00Subject matter not provided for in other groups of this subclass239
- F23D 2213/00Burner manufacture specificationsIndexing code206
- F23D 2214/00CoolingIndexing code196
- F23D 2201/00Burners adapted for particulate solid or pulverulent fuelsIndexing code171
- F23D 2210/00Noise abatementIndexing code156
- F23D 2208/00Control devices associated with burnersIndexing code147
- F23D 2211/00Thermal dilatation prevention or compensationIndexing code112
- F23D 5/00Burners in which liquid fuel evaporates in the combustion space, with or110
- F23D 2204/00Burners adapted for simultaneous or alternative combustion having more than one fuelIndexing code80
- F23D 2206/00Burners for specific applicationsIndexing code37
- F23D 2205/00Assemblies of two or more burners, irrespective of fuel typeIndexing code32
- F23D 2202/00Liquid fuel burnersIndexing code26
- F23D 2200/00Burners for fluid fuelIndexing code19
- F23D 7/00Burners in which drops of liquid fuel impinge on a surface10
- F23D 9/00Burners in which a stream of liquid fuel impinges intermittently on a5
Recent patents
- Gas heater6 Oct 2026US 12,753,917 B2Baide Home (Xiamen) Outdoor Products Co., Ltd.
- Burner and method for hydrogen combustion with enhanced luminosity6 Oct 2026US 12,753,918 B2Bloom Engineering Company, Inc.
- Combustion heater and air conditioning system6 Oct 2026US 12,753,936 B2Daikin Industries, Ltd.
- Smart candle with automatic extinguishing function22 Sep 2026US 12,742,544 B2
- Methods and systems for mixing fluids22 Sep 2026US 12,742,545 B2Ekona Power Inc.
- Premixing device and combustion device comprising same8 Oct 2026US 2026/0309326 A1Noritz Corporation
- Metal-based fuel and fuel delivery systems1 Oct 2026US 2026/0298136 A1Rtx Corporation
- Multi-mode equipment set and use thereof1 Oct 2026US 2026/0298465 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Premixing apparatus1 Oct 2026US 2026/0298466 A1Rinnai Corporation
- Afterburners including methods of making and operating1 Oct 2026US 2026/0302276 A1WATT Fuel Cell Corp.
Most cited
By later US patents
- Arrangement for controlling fluid jets injected into a fluid stream1,018US 7,976,213 B2United Technologies Corporation · 2011
- Apparatus for manufacturing a process abatement reactor386US 7,736,600 B2APPLIED Materials.Inc. · 2010
- Controlled fluid dispersal techniques213US 4,052,002 ABowles Fluidics Corporation · 1977
- Downhole steam generator with improved preheating, combustion and protection features205US 4,385,661 AThe United States of America as represented by the United States Department of Energy · 1983
- Dual orifice bypass system for dual-fuel gas turbine181US 6,145,318 AGeneral Electric Company · 2000