G21C 17/104
Measuring reactivity
G21C17/104 (Measuring reactivity) appears on 27 US grants and 27 published applications in this corpus.
Search patents in G21C- Granted patents
- 27
- Published applications
- 27
- Assignees
- 18
- Inventors
- 67
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 3 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 4 | 3 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 3 | 2 |
| 2023 | 0 | 2 |
| 2024 | 1 | 3 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for determining real-time thermal power of a nuclear reactor based on number of gamma rays counted19 May 2026US 12,633,426 B2Max-Planck-Gesellschaft Zur FöRderung Der Wissenschaften E. V.
- Method of dynamic control rod reactivity measurement13 Jan 2026US 12,525,367 B2Korea Hydro & Nuclear Power Co., Ltd.
- Radioisotope activity surveillance apparatus, system, and method3 Sep 2024US 12,080,434 B2Westinghouse Electric Corp.
- Subcritical reactivity monitor utilizing prompt self-powered in-core detectors30 Aug 2022US 11,430,578 B2Westinghouse Electric Corp.
- Subcritical core reactivity bias projection technique19 Jul 2022US 11,393,599 B2Westinghouse Electric Corp.
- Method for Performing Star/ARWV Reconciliation30 Apr 2026US 2026/0120903 A1Westinghouse Electric Corp.
- Radioisotope activity surveillance apparatus, system, and method28 Nov 2024US 2024/0395425 A1Westinghouse Electric Corp.
- Testing and education microreactor6 Jun 2024US 2024/0186028 A1
- Method for performing star/arwv reconciliation21 Mar 2024US 2024/0096512 A1Westinghouse Electric Corp.
- Method of dynamic control rod reactivity measurement21 Sep 2023US 2023/0298774 A1Korea Hydro & Nuclear Power Co., Ltd.
Most cited
By later US patents
- Fission reaction control in a molten salt reactor43US 10,438,705 B2TerraPower, LLC · 2019
- Method and apparatus for determining nearness to criticality of a nuclear fueled electric power generating unit35US 6,181,759 B2Westinghouse Electric Corp. · 2001
- Fission reaction control in a molten salt reactor13US 11,170,901 B2TerraPower, LLC · 2021
- Method and apparatus for determining the nearness to criticality of a nuclear reactor12US 4,588,547 AWestinghouse Electric Corp. · 1986
- Method and apparatus for measuring the reactivity of a spent fuel assembly9US 4,325,785 ACombustion Engineering, Inc. · 1982