F23N 1/00
Regulating fuel supply
F23N1/00 (Regulating fuel supply) appears on 2,113 US grants and 1,853 published applications in this corpus.
Search patents in F23N- Granted patents
- 2,113
- Published applications
- 1,853
- Assignees
- 917
- Inventors
- 3,943
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 28 | 0 |
| 1978 | 26 | 0 |
| 1979 | 17 | 0 |
| 1980 | 18 | 0 |
| 1981 | 26 | 0 |
| 1982 | 25 | 0 |
| 1983 | 21 | 0 |
| 1984 | 43 | 0 |
| 1985 | 39 | 0 |
| 1986 | 35 | 0 |
| 1987 | 37 | 0 |
| 1988 | 35 | 0 |
| 1989 | 42 | 0 |
| 1990 | 43 | 0 |
| 1991 | 40 | 0 |
| 1992 | 29 | 0 |
| 1993 | 29 | 0 |
| 1994 | 33 | 0 |
| 1995 | 26 | 0 |
| 1996 | 17 | 0 |
| 1997 | 21 | 0 |
| 1998 | 30 | 0 |
| 1999 | 38 | 0 |
| 2000 | 27 | 0 |
| 2001 | 24 | 11 |
| 2002 | 19 | 27 |
| 2003 | 37 | 29 |
| 2004 | 32 | 49 |
| 2005 | 31 | 51 |
| 2006 | 27 | 42 |
| 2007 | 25 | 56 |
| 2008 | 16 | 50 |
| 2009 | 25 | 68 |
| 2010 | 32 | 72 |
| 2011 | 40 | 76 |
| 2012 | 41 | 94 |
| 2013 | 55 | 91 |
| 2014 | 85 | 94 |
| 2015 | 63 | 97 |
| 2016 | 72 | 94 |
| 2017 | 94 | 103 |
| 2018 | 77 | 85 |
| 2019 | 93 | 94 |
| 2020 | 76 | 94 |
| 2021 | 77 | 99 |
| 2022 | 74 | 111 |
| 2023 | 75 | 87 |
| 2024 | 77 | 83 |
| 2025 | 67 | 52 |
| 2026 | 41 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F23N 1/02Conjointly with air supply832
- F23N 1/002Regulating fuel supply: using electronic means497
- F23N 1/007Regulating fuel supply: using mechanical means309
- F23N 1/005Regulating fuel supply: using electrical or electromechanical means271
- F23N 1/08Conjointly with another medium200
- F23N 1/06Conjointly with draught76
- F23N 1/04Conjointly with air supply and with draught45
Recent patents
- Methods and systems for mixing fluids22 Sep 2026US 12,742,545 B2Ekona Power Inc.
- Convection conveyor oven manifold and damper system22 Sep 2026US 12,742,546 B2The Middleby Corporation
- Systems and methods for controlling a variable gas valve15 Sep 2026US 12,736,230 B2Copeland Comfort Control LP
- Dual fuel valve8 Sep 2026US 12,729,851 B2GDA Valve Technology Co., Ltd.
- Method and kiln for the firing of substantially flat base ceramic articles8 Sep 2026US 12,729,855 B2Sacmi Forni & Filter S.P.A.
- Apparatus for feeding solid fuel feedstock into a furnace8 Oct 2026US 2026/0309324 A1British American Tobacco (Investments) Limited
- Premixing device and combustion device comprising same8 Oct 2026US 2026/0309326 A1Noritz Corporation
- Dual fuel valve17 Sep 2026US 2026/0276192 A1GDA Valve Technology Co., Ltd.
- Device and method for controlling a comburent-fuel mixture in a premixed gas burner17 Sep 2026US 2026/0276195 A1Bertelli & Partners S.R.L.
- Method of heating a steel semi-product in a heating furnace, and associated heating furnace3 Sep 2026US 2026/0259005 A1
Most cited
By later US patents
- Water heater controller140US 5,056,712 A1991
- Modulating furnace with two-speed draft inducer138US 5,732,691 ARheem Manufacturing Company · 1998
- Non-recovery coke oven gas combustion system135US 5,968,320 AStelco Inc. · 1999
- Variable heat generating method and apparatus129US 4,622,007 AAmerican Combustion, Inc. · 1986
- Modulating thermostat for gas oven burner115US 6,149,065 AHarper-Wyman Company · 2000