G21C 7/18
Means for obtaining differential movement of control elements
G21C7/18 (Means for obtaining differential movement of control elements) appears on 15 US grants and 12 published applications in this corpus.
Search patents in G21C- Granted patents
- 15
- Published applications
- 12
- Assignees
- 13
- Inventors
- 36
- Latest grant
- 25 Apr 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 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 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 3 |
| 2021 | 0 | 1 |
| 2022 | 3 | 1 |
| 2023 | 2 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for design and additive manufacture of fission reactor core structure of inverted reactor25 Apr 2023US 11,636,957 B2BWXT Nuclear Energy, Inc.
- Flux-shifting reactivity control system7 Feb 2023US 11,574,746 B2TerraPower, LLC
- Universal inverted reactor6 Sep 2022US 11,437,156 B2BWXT Nuclear Energy, Inc.
- Control rod drive mechanism with heat pipe cooling7 Jun 2022US 11,355,252 B2NuScale Power, LLC
- Control rod drive mechanism with separate latch and drive coils19 Apr 2022US 11,309,095 B2BWXT Advanced Technologies LLC
- Control rod apparatus for small modular reactor, and small modular reactor comprising same19 Mar 2026US 2026/0081044 A1Dunedin Energy Systems Limited
- Universal inverted reactor and method for design and manufacture of universal inverted reactor3 Mar 2022US 2022/0068512 A1BWXT Nuclear Energy, Inc.
- Flux-shifting reactivity control system8 Jul 2021US 2021/0210223 A1TerraPower, LLC
- Control rod drive mechanism with separate latch and drive coils12 Nov 2020US 2020/0357530 A1BWXT Advanced Technologies LLC
- Universal inverted reactor and method for design and manufacture of universal inverted reactor23 Jan 2020US 2020/0027585 A1BWXT Nuclear Energy, Inc.
Most cited
By later US patents
- Actuating device for two clusters of control rods movable vertically in one and the same fuel array of the core of a nuclear reactor16US 4,544,521 AFramatome & Cie. · 1985
- Nuclear reactor control rod with uniformly changeable axial worth12US 4,820,478 AWestinghouse Electric Corp. · 1989
- Universal inverted reactor10US 11,437,156 B2BWXT Nuclear Energy, Inc. · 2022
- Nuclear reactor control rod with uniformly changeable axial worth7US 4,707,329 AWestinghouse Electric Corp. · 1987
- Device for operating a cluster of neutron absorber elements in a pressurized water nuclear reactor3US 4,683,102 AFramatome & Cie. · 1987