F22B 1/066
With double-wall tubes having a third fluid between these walls
Official title: {with double-wall tubes having a third fluid between these walls, e.g. helium for leak detection}
F22B1/066 (With double-wall tubes having a third fluid between these walls) appears on 18 US grants and 5 published applications in this corpus.
Search patents in F22B- Granted patents
- 18
- Published applications
- 5
- Assignees
- 15
- Inventors
- 46
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 3 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat exchanger configuration for nuclear reactor6 Jan 2026US 12,516,888 B2TerraPower, LLC
- Valve-cell vacuum deposition apparatus including a leak detection device and method for detecting a leak in a vacuum deposition apparatus26 Apr 2016US 9,322,098 B2Riber
- Double-walled tube with interface gap and production method therefor6 Oct 2015US 9,153,348 B2Nippon Steel & Sumitomo Metal Corporation
- Steam generator for sodium cooled fast reactor, heat transfer tubes thereof, and leak detection unit for heat transfer tube thereof16 Apr 2013US 8,418,532 B2Korea Atomic Energy Research Institute
- Triple-wall tube heat exchanger27 Nov 1990US 4,972,902 AKabushiki Kaisha Toshiba
- Heat exchanger configuration for nuclear reactor17 Feb 2022US 2022/0051816 A1GE-Hitachi Nuclear Energy Americas LLC
- Valve-cell vacuum deposition apparatus including a leak detection device and method for detecting a leak in a vacuum deposition apparatus26 Sep 2013US 2013/0247651 A1Riber
- Double-walled tube, method of manufacturing double-walled tube and steam generator18 Jul 2013US 2013/0180472 A1Kabushiki Kaisha Toshiba
- Double-walled tube with interface gap and production method therefor21 Mar 2013US 2013/0070889 A1Nippon Steel & Sumitomo Metal Corporation
- Steam generator for sodium cooled fast reactor, heat transfer tubes thereof, and leak detection unit for heat transfer tube thereof18 Mar 2010US 2010/0064988 A1Korea Atomic Energy Research Institute
Most cited
By later US patents
- Pump/heat exchanger49US 4,216,821 ACommissariat A L' Energie Atomique · 1980
- Heat exchanger26US 4,090,554 AThe Babcock & Wilcox Company · 1978
- Double-wall tube for a heat exchanger19US 4,694,864 ANovatome · 1987
- Triple-wall tube heat exchanger18US 4,972,902 AKabushiki Kaisha Toshiba · 1990
- Leak detecting matrix for heat exchanges17US 4,466,481 AFoster Wheeler Energy Corporation · 1984