F23N 2229/22
The sensor's sensitivity being variable
Official title: the sensor's sensitivity being variable
F23N2229/22 (The sensor's sensitivity being variable) appears on 22 US grants and 16 published applications in this corpus.
Search patents in F23N- Granted patents
- 22
- Published applications
- 16
- Assignees
- 22
- Inventors
- 52
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Burner assembly, method for operating a burner assembly, and wind function24 Jun 2025US 12,338,999 B2Viessmann Climate Solutions SE
- Intelligent gas cooktop burner6 Feb 2024US 11,892,173 B2Robertshaw Controls Company
- Flame sensing for oil burner5 Dec 2023US 11,835,233 B2R. W. Beckett Corporation
- Flame sensor assemblies and methods of replacing flame sensor assemblies9 May 2023US 11,644,196 B2Emerson Electric Co.
- Flame sensor assemblies and methods of replacing flame sensor assemblies9 Nov 2021US 11,168,885 B2Emerson Electric Co.
- Systems and methods for flame monitoring in gas-powered appliances30 Apr 2026US 2026/0117974 A1Copeland Comfort Control LP
- Low gas pressure detection and compensation operation method of gas water heater18 Dec 2025US 2025/0383087 A1
- Burner comprising a control unit and an ignition and ionization electrode and method of monitoring and igniting the flame of a burner22 Aug 2024US 2024/0280263 A1Truma Geraetetechnik GmbH & Co. KG
- Burner assembly, method for operating a burner assembly, and wind function26 Oct 2023US 2023/0341124 A1Viessmann Climate Solutions SE
- Intelligent Gas Cooktop Burner16 Feb 2023US 2023/0051734 A1Robertshaw Controls Company
Most cited
By later US patents
- Flame sensor with dynamic sensitivity adjustment91US 6,013,919 AGeneral Electric Company · 2000
- Burner flame sensing system and method66US 5,077,550 AAllen-Bradley Company, Inc. · 1991
- Fire detection system with IR and UV ratio detector46US 4,455,487 AArmtec Industries, Inc. · 1984
- Apparatus for detecting flame conditions in combustion systems39US 5,961,314 ARosemount Aerospace Inc. · 1999
- Flame monitoring system35US 4,039,844 AElectronics Corporation of America · 1977