G21C 5/18
Moderator or core structure: characterised by the provision of more than one
Official title: characterised by the provision of more than one active zone
G21C5/18 (Moderator or core structure: characterised by the provision of more than one) appears on 58 US grants and 67 published applications in this corpus.
Search patents in G21C- Granted patents
- 58
- Published applications
- 67
- Assignees
- 40
- Inventors
- 149
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 0 | 3 |
| 2012 | 1 | 5 |
| 2013 | 3 | 4 |
| 2014 | 2 | 3 |
| 2015 | 1 | 1 |
| 2016 | 2 | 3 |
| 2017 | 3 | 4 |
| 2018 | 2 | 6 |
| 2019 | 2 | 3 |
| 2020 | 3 | 6 |
| 2021 | 7 | 5 |
| 2022 | 3 | 3 |
| 2023 | 4 | 3 |
| 2024 | 3 | 7 |
| 2025 | 1 | 2 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat pipe networks for heat removal, such as heat removal from nuclear reactors, and associated systems and methods4 Feb 2025US 12,217,878 B2
- Nuclear reactor with an axially stratified fuel bed23 Jul 2024US 12,046,379 B2X-energy, LLC
- Customizable thin plate fuel form and reactor core therefor5 Mar 2024US 11,923,098 B2Howe Industries LLC
- Molten fuel reactors and orifice ring plates for molten fuel reactors23 Jan 2024US 11,881,320 B2TerraPower, LLC
- Fast reactor with primary and backup control rods26 Dec 2023US 11,854,709 B2Hitachi-GE Nuclear Energy, Ltd.
- Multiplicative fission and converter Core for thermal and electrial generation16 Jul 2026US 2026/0204442 A1
- Reactor control and shutdown systems28 May 2026US 2026/0148869 A1Nano Nuclear Energy Inc.
- Heat exchangers28 May 2026US 2026/0148870 A1Nano Nuclear Energy Inc.
- Reactor systems28 May 2026US 2026/0148873 A1Nano Nuclear Energy Inc.
- Use of a Multi-Spectrum Microreactor to Produce Large Magnitude Out-Of-Core Thermal Neutron Fluxes Over Large Irradiation Volumes31 Jul 2025US 2025/0246334 A1NuScale Power, LLC
Most cited
By later US patents
- Nuclear reactor for breeding U.sup.23343US 3,960,655 AThe United States of America as represented by the United States Energy Research and Development Administration · 1976
- Reactor core41US 6,088,420 AKabushiki Kaisha Toshiba · 2000
- Transuranium elements transmuting fuel assembly40US 5,400,375 AKabushiki Kaisha Toshiba · 1995
- Reactor for production of U-23334US 4,393,510 APacific Nuclear Fuels, Inc. · 1983
- Mechanical design of a light water breeder reactor33US 3,957,575 AThe United States of America as represented by the United States Energy Research and Development Administration · 1976