G21C 17/032
Reactor-coolant flow measuring or monitoring
Official title: Reactor-coolant flow measuring or monitoring {(measuring volume or mass flow in general G01F)}
G21C17/032 (Reactor-coolant flow measuring or monitoring) appears on 56 US grants and 40 published applications in this corpus.
Search patents in G21C- Granted patents
- 56
- Published applications
- 40
- Assignees
- 38
- Inventors
- 182
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 4 | 0 |
| 2014 | 1 | 3 |
| 2015 | 2 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 3 |
| 2018 | 2 | 3 |
| 2019 | 2 | 0 |
| 2020 | 3 | 3 |
| 2021 | 2 | 1 |
| 2022 | 2 | 6 |
| 2023 | 1 | 4 |
| 2024 | 2 | 3 |
| 2025 | 6 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System including a bypass pipe that routes some sodium coolant from a primary pump discharge upward to sodium measuring instruments located near a nuclear reactor head25 Aug 2026US 12,718,961 B2TerraPower, LLC
- Integrated control logic device and operating method thereof to control water level of steam generator of nuclear power plant26 May 2026US 12,638,171 B2Kepco Engineering & Construction Company, Inc.
- Computer apparatus for monitoring and verifying nuclear and fossil power plant heat losses based on the revised NCV method19 May 2026US 12,633,427 B2Lang Family Trust
- Apparatus for thermal performance monitoring and safe operation of a nuclear power plant16 Sep 2025US 12,417,856 B2Lang Family Trust
- Reactor secondary side passive residual heat removal system2 Sep 2025US 12,406,775 B2Shanghai Nuclear Engineering Research & Design Institute
- Computer apparatus for monitoring and verifying nuclear and fossil power plant heat losses based on the revised ncv method29 Jan 2026US 2026/0031247 A1Lang Family Trust
- Method and device for monitoring a passive heat removal system28 Aug 2025US 2025/0273353 A1Atomenergoproekt, Joint-Stock Company
- Systems and methods for non-disruptive estimation and control of fluid flow rates10 Jul 2025US 2025/0224744 A1GE-Hitachi Nuclear Energy Americas LLC
- Apparatus for thermal performance monitoring and safe operation of a nuclear power plant1 May 2025US 2025/0140428 A1Lang Family Trust
- Method of communicating temperature data including a heating element coupled to temperature sensor at interface12 Sep 2024US 2024/0304348 A1GE-Hitachi Nuclear Energy Americas LLC
Most cited
By later US patents
- Flow condition monitor34US 6,480,793 B1Westinghouse Electric Company LCL · 2002
- Cost effective fluid line status sensor system27US 5,064,604 AWestinghouse Electric Corp. · 1991
- Reactor in-vessel sensor and core monitoring apparatus26US 4,622,202 AHitachi, Ltd. · 1986
- BWR core flow measurement enhancements21US 4,975,239 AGeneral Electric Company · 1990
- Method of and apparatus for measuring vapor density16US 4,874,572 AOphir Corporation · 1989