F23N 2231/10
Fail safe: for component failures
Official title: for component failures
F23N2231/10 (Fail safe: for component failures) appears on 107 US grants and 67 published applications in this corpus.
Search patents in F23N- Granted patents
- 107
- Published applications
- 67
- Assignees
- 58
- Inventors
- 216
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 4 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 4 |
| 2006 | 1 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 3 |
| 2011 | 1 | 8 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 3 | 6 |
| 2016 | 2 | 7 |
| 2017 | 6 | 6 |
| 2018 | 8 | 4 |
| 2019 | 5 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 4 |
| 2022 | 0 | 4 |
| 2023 | 4 | 2 |
| 2024 | 5 | 1 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Atomization burner with flexible fire rate14 Apr 2026US 12,601,481 B2Babington Technology, Inc.
- Closed-loop control of a combustion apparatus3 Mar 2026US 12,565,995 B2Siemens Aktiengesellschaft
- Method for evaluating a quasi-stationary pressure difference detectable by a sensor at a gas boiler, and associated gas boiler28 Oct 2025US 12,455,076 B2ebm-papst Landshut GmbH
- Light detection system and discharge probability calculating method26 Nov 2024US 12,153,166 B2Azbil Corporation
- Premixing apparatus6 Aug 2024US 12,055,292 B2Rinnai Corporation
- Gas Regulating Unit, Gas Regulating Valve And System With Such A Gas Regulating Valve For Fail-Safe Pressure Regulation In A Gas Heater28 Aug 2025US 2025/0271879 A1ebm-papst Landshut GmbH
- Atomization burner with flexible fire rate6 Feb 2025US 2025/0043954 A1Babington Technology, Inc.
- Method for safety-oriented control24 Oct 2024US 2024/0353102 A1
- Method For Evaluating A Quasi-Stationary Pressure Difference Detectable By A Sensor At A Gas Boiler, And Associated Gas Boiler20 Apr 2023US 2023/0118991 A1ebm-papst Landshut GmbH
- Closed-Loop Control of a Combustion Apparatus19 Jan 2023US 2023/0017088 A1Siemens Aktiengesellschaft
Most cited
By later US patents
- Electronic thermostat with repetitive operation cycle202US 4,335,847 A1982
- Ignition control system for a gas appliance131US 4,695,246 ALennox Industries Inc. · 1987
- Integrated furnace control and control self test122US 4,872,828 AHamilton Standard Controls, Inc. · 1989
- Status indicator for self-energizing burner control system72US 4,770,629 AHoneywell Inc. · 1988
- Optical flame detector performance tester56US 5,236,328 AHoneywell Inc. · 1993