F23N 2227/22
Pilot burners
F23N2227/22 (Pilot burners) appears on 162 US grants and 87 published applications in this corpus.
Search patents in F23N- Granted patents
- 162
- Published applications
- 87
- Assignees
- 89
- Inventors
- 271
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 11 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 6 |
| 2003 | 8 | 4 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 3 |
| 2007 | 1 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 3 |
| 2010 | 1 | 4 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 4 |
| 2014 | 3 | 0 |
| 2015 | 1 | 10 |
| 2016 | 3 | 0 |
| 2017 | 6 | 6 |
| 2018 | 2 | 5 |
| 2019 | 6 | 7 |
| 2020 | 7 | 7 |
| 2021 | 2 | 7 |
| 2022 | 5 | 8 |
| 2023 | 3 | 1 |
| 2024 | 3 | 1 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Inspection device12 May 2026US 12,624,835 B2Azbil Corporation
- Quick change hot water heater thermocouple20 May 2025US 12,305,857 B1
- Hydrate-inhibiting chemical injector and related methods8 Apr 2025US 12,269,989 B2
- High-capacity igniter3 Dec 2024US 12,158,268 B2Forney Corporation
- Spark ignited pilot for gas burner2 Apr 2024US 11,946,641 B2Solaronics, Inc.
- Methods and systems for retrofitting an industry standard valve12 Jun 2025US 2025/0189126 A1Red Weather Systems Inc.
- Dual-Fuel Burner and Method of Operation20 Feb 2025US 2025/0060098 A1Air Products and Chemicals, Inc.
- Method and System for Controlling an Intermittent Pilot Water Heater System30 May 2024US 2024/0175605 A1Ademco Inc.
- Inspection device27 Jul 2023US 2023/0235880 A1Azbil Corporation
- Remotely actuated safety shutoff valve with interrupter assembly and system and method for using same22 Dec 2022US 2022/0404016 A1Baso Gas Products, LLC
Most cited
By later US patents
- Modulating thermostat for gas oven burner115US 6,149,065 AHarper-Wyman Company · 2000
- Thermostatically controlled gas heater89US 5,470,018 ADESA International, Inc. · 1995
- Pilot flame powered burner controller with remote control operation71US 6,261,087 B1Honeywell International Inc. · 2001
- Gas burner control system68US 4,483,672 AEssex Group, Inc. · 1984
- Self-powered intermittent ignition and control system for gas combustion appliances65US 4,778,378 AThe Quantum Group, Inc. · 1988