G21C 7/24
Selection of substances for use as neutron-absorbing material
G21C7/24 (Selection of substances for use as neutron-absorbing material) appears on 48 US grants and 49 published applications in this corpus.
Search patents in G21C- Granted patents
- 48
- Published applications
- 49
- Assignees
- 37
- Inventors
- 146
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 4 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 4 | 1 |
| 2017 | 1 | 4 |
| 2018 | 1 | 2 |
| 2019 | 1 | 4 |
| 2020 | 3 | 4 |
| 2021 | 2 | 2 |
| 2022 | 4 | 4 |
| 2023 | 3 | 3 |
| 2024 | 4 | 4 |
| 2025 | 0 | 6 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Neutron absorber synthesis system23 Jun 2026US 12,662,384 B2Korea Atomic Energy Research Institute
- Control rods for light water reactors31 Dec 2024US 12,183,474 B2Westinghouse Electric Corp.
- Thorium-based fuel design for pressurized heavy water reactors3 Sep 2024US 12,080,436 B2Clean Core Thorium Energy LLC
- Thorium-based fuel design for pressurized heavy water reactors12 Mar 2024US 11,929,183 B2Clean Core Thorium Energy LLC
- Nuclear reactor passive reactivity control system2 Jan 2024US 11,862,354 B2
- Refuelling and/or storage neutron-absorbing rods17 Sep 2026US 2026/0279609 A1Rolls-Royce Smr Limited
- Control rod assembly with enhanced control rod worth21 May 2026US 2026/0142043 A1Kepco Nuclear Fuel Co., Ltd.
- Control rod assembly with enhanced control rod worth using highly enriched b4c21 May 2026US 2026/0142045 A1Kepco Nuclear Fuel Co., Ltd.
- Control rod apparatus for small modular reactor, and small modular reactor comprising same19 Mar 2026US 2026/0081044 A1Dunedin Energy Systems Limited
- High-porosity ceramic burnable absorbers4 Dec 2025US 2025/0372272 A1Standard Nuclear, Inc.
Most cited
By later US patents
- High neutron-absorbing refractory compositions of matter and methods for their manufacture22US 5,156,804 AThermal Technology, Inc. · 1992
- Control blade for nuclear reactor17US 5,034,185 AKabushiki Kaisha Toshiba · 1991
- Neutron-absorbing material and method of making same11US 4,744,922 AAdvanced Refractory Technologies, Inc. · 1988
- Neutron-absorbent control cluster for a nuclear reactor10US 5,742,655 ACompagnie Generale des Matieres Nucleaires · 1998
- Gaseous reactor control system7US 5,045,275 AGeorgia Tech Research Corporation · 1991