F23N 2231/04
Fail safe: for electrical power failures
Official title: for electrical power failures
F23N2231/04 (Fail safe: for electrical power failures) appears on 49 US grants and 24 published applications in this corpus.
Search patents in F23N- Granted patents
- 49
- Published applications
- 24
- Assignees
- 33
- Inventors
- 76
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 2 | 3 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 2 | 3 |
| 2022 | 1 | 2 |
| 2023 | 1 | 2 |
| 2024 | 2 | 1 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Alternate pilot light ignition for gas powered appliances with electric ignition assembly26 Aug 2025US 12,398,884 B2Haier US Appliance Solutions, Inc.
- Flame control device for burners15 Jul 2025US 12,359,821 B2Sit S.P.A.
- Thermoelectric safety assembly15 Apr 2025US 12,276,422 B2Orkli, S. Coop.
- Systems and methods to prevent explosions in a tank using automated gas harvesting and purge safety devices10 Sep 2024US 12,085,278 B2Halliburton Energy Services.Inc.
- Flame module for a spectrometer9 Apr 2024US 11,953,203 B2Thermo Fisher Scientific (Bremen) GmbH
- Alternate pilot light ignition for gas powered appliances with electric ignition assembly18 Apr 2024US 2024/0125474 A1Haier US Appliance Solutions, Inc.
- Systems and methods to prevent explosions in a tank using automated gas harvesting and purge safety devices12 Oct 2023US 2023/0324046 A1Halliburton Energy Services.Inc.
- Flame control device for burners5 Jan 2023US 2023/0003389 A1Sit S.P.A.
- Thermoelectric safety assembly27 Oct 2022US 2022/0341593 A1Orkli, S. Coop.
- Gas cooking appliance with electromechanical valves and rotary burner controls2 Jun 2022US 2022/0170640 A1Midea Group Co., Ltd.
Most cited
By later US patents
- Stove burner simmer control43US 5,575,638 AThermador Corporation · 1996
- Gas ignition devices43US 5,722,823 A1998
- Gas oven burner control method and apparatus31US 5,649,818 ABanner Engineering & Sales, Inc. · 1997
- Control of burners26US 4,348,169 ALand Combustion Limited · 1982
- Method and apparatus for operating a furnace from a 12V DC battery20US 4,946,096 ACarrier Corporation · 1990