F22B 37/421
Arrangements for detecting leaks
Official title: {Arrangements for detecting leaks}
F22B37/421 (Arrangements for detecting leaks) appears on 39 US grants and 17 published applications in this corpus.
Search patents in F22B- Granted patents
- 39
- Published applications
- 17
- Assignees
- 37
- Inventors
- 92
- Latest grant
- 18 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 2 |
| 2022 | 3 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Circuit for detecting a leak in a water heater device and activating an alarm device18 Feb 2025US 12,228,311 B2Ademco Inc.
- Intelligent prediction of boiler blowdown27 Aug 2024US 12,072,094 B2Saudi Arabian Oil Company
- Seawater leakage detection device in feedwater system, method for detecting seawater leakage in feedwater system, and steam turbine plant31 Oct 2023US 11,802,688 B2Mitsubishi Heavy Industries, Ltd.
- Steam/hot water device monitoring15 Aug 2023US 11,726,068 B2Armstrong International, Inc.
- Tube leak detection device and tube leak detection method27 Dec 2022US 11,536,625 B2Mitsubishi Heavy Industries Engineering, Ltd.
- Circuit for detecting a leak in a water heater device and activating an alarm device12 Jun 2025US 2025/0189171 A1Resideo LLC
- Method of determining a leakage in a heat transfer fluid channel of a heat transferring reactor system, and a heat transferring reactor7 Nov 2024US 2024/0369440 A1Sumitomo SHI FW Energia Oy
- Method of determining a tube leakage in a water-steam circuit of a combustion boiler system, and a combustion boiler26 Sep 2024US 2024/0318815 A1Sumitomo SHI FW Energia Oy
- Intelligent prediction of boiler blowdown5 Oct 2023US 2023/0313984 A1Saudi Arabian Oil Company
- Circuit for detecting a leak in a water heater device and activating an alarm device1 Dec 2022US 2022/0381481 A1Ademco Inc.
Most cited
By later US patents
- Acoustic emission signal collector manifold53US 5,351,655 AThe Babcock & Wilcox Company · 1994
- Boiler system leak detection39US 5,320,967 ANalco Chemical Company · 1994
- Method for detecting steam leakage in heat-exchanger having circulation tubes surrounded by liquid sodium and devices for the application of said method28US 3,975,943 AElectricite de France (Service National) · 1976
- Detecting leaks in a heat exchanger in operation27US 4,688,627 AElectricite de France · 1987
- System and method for least squares filtering based leak flow estimation/detection using exponentially shaped leak profiles25US 6,076,048 ABetzDearborn Inc. · 2000