F23D 14/46
Details
F23D14/46 (Details) appears on 2,817 US grants and 2,687 published applications in this corpus.
Search patents in F23D- Granted patents
- 2,817
- Published applications
- 2,687
- Assignees
- 1,235
- Inventors
- 5,430
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 19 | 0 |
| 1978 | 16 | 0 |
| 1979 | 26 | 0 |
| 1980 | 15 | 0 |
| 1981 | 19 | 0 |
| 1982 | 16 | 0 |
| 1983 | 23 | 0 |
| 1984 | 15 | 0 |
| 1985 | 23 | 0 |
| 1986 | 37 | 0 |
| 1987 | 31 | 0 |
| 1988 | 29 | 0 |
| 1989 | 37 | 0 |
| 1990 | 33 | 0 |
| 1991 | 25 | 0 |
| 1992 | 34 | 0 |
| 1993 | 36 | 0 |
| 1994 | 46 | 0 |
| 1995 | 50 | 0 |
| 1996 | 46 | 0 |
| 1997 | 42 | 0 |
| 1998 | 61 | 0 |
| 1999 | 72 | 0 |
| 2000 | 85 | 0 |
| 2001 | 57 | 20 |
| 2002 | 55 | 44 |
| 2003 | 55 | 73 |
| 2004 | 63 | 85 |
| 2005 | 62 | 68 |
| 2006 | 34 | 65 |
| 2007 | 30 | 54 |
| 2008 | 23 | 80 |
| 2009 | 29 | 94 |
| 2010 | 35 | 127 |
| 2011 | 55 | 116 |
| 2012 | 74 | 126 |
| 2013 | 88 | 129 |
| 2014 | 75 | 135 |
| 2015 | 90 | 124 |
| 2016 | 90 | 147 |
| 2017 | 120 | 123 |
| 2018 | 109 | 145 |
| 2019 | 134 | 147 |
| 2020 | 128 | 142 |
| 2021 | 111 | 101 |
| 2022 | 109 | 137 |
| 2023 | 95 | 99 |
| 2024 | 93 | 133 |
| 2025 | 80 | 92 |
| 2026 | 71 | 81 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F23D 14/72Safety devices823
- F23D 14/48Nozzles790
- F23D 14/62Mixing devices782
- F23D 14/70Baffles or like flow-disturbing devices367
- F23D 14/66Preheating the combustion air or gas199
- F23D 14/60Devices for simultaneous control of gas and combustion air177
- F23D 14/84Flame spreading or otherwise shaping155
- F23D 14/465For torches88
All 9 subgroupsShow fewer
Recent patents
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- Gas burner with secondary and tertiary air supplies1 Sep 2026US 12,723,754 B2Nieco Corporation
- Premixing device and combustion device comprising same8 Oct 2026US 2026/0309326 A1Noritz 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.
- Gas furnace with heat exchanger24 Sep 2026US 2026/0287170 A1Daikin Comfort Technologies Manufacturing, L.P.
Most cited
By later US patents
- Arrangement for controlling fluid jets injected into a fluid stream1,018US 7,976,213 B2United Technologies Corporation · 2011
- Microcombustor having submillimeter critical dimensions168US 6,193,501 B1The Board of Trustees of the University of Illinois · 2001
- Method for reducing the flame temperature of a burner and burner intended therefor164US 5,104,310 AAGA Aktiebolag · 1992
- Fuel-conditioning skid147US 7,442,239 B2Ingersoll-Rand Energy Systems Corporation · 2008
- Low NO.sub.x burner assemblies133US 5,073,105 ACallidus Technologies, Inc. · 1991