G21C 1/07
Pebble-bed reactors
Official title: Pebble-bed reactors; Reactors with granular fuel
G21C1/07 (Pebble-bed reactors) appears on 95 US grants and 59 published applications in this corpus.
Search patents in G21C- Granted patents
- 95
- Published applications
- 59
- Assignees
- 44
- Inventors
- 185
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 11 | 0 |
| 1988 | 8 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 6 |
| 2005 | 2 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 1 |
| 2008 | 2 | 3 |
| 2009 | 1 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 2 |
| 2012 | 0 | 5 |
| 2013 | 2 | 5 |
| 2014 | 3 | 2 |
| 2015 | 2 | 1 |
| 2016 | 3 | 3 |
| 2017 | 3 | 4 |
| 2018 | 0 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 5 | 3 |
| 2022 | 1 | 1 |
| 2023 | 2 | 2 |
| 2024 | 2 | 3 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for monitoring failure of coated particles in fuel elements in core of pebble-bed high-temperature gas-cooled reactor30 Sep 2025US 12,431,251 B2Tsinghua University
- High efficiency foam compacts for TRISO fuels24 Dec 2024US 12,176,114 B2UT-Battelle, LLC
- Nuclear reactor with an axially stratified fuel bed23 Jul 2024US 12,046,379 B2X-energy, LLC
- Spherical object falling buffer device30 May 2023US 11,661,282 B2Tsinghua University
- Spherical element detecting and positioning device for a pebble bed nuclear reactor10 Jan 2023US 11,551,825 B2Tsinghua University
- Hamr pebble reactor23 Jul 2026US 2026/0213027 A1Odin Electric, Inc.
- Pebble bed reactor pebbles coated with materials developed to minimize radioactive dust from carbon pebbles10 Jul 2025US 2025/0226121 A1
- Particle bed fuel element for nuclear thermal propulsion22 May 2025US 2025/0162732 A1Dark Fission Space Systems Inc.
- Serial high-temperature gas-cooled reactor nuclear systems and operating methods thereof18 Apr 2024US 2024/0127975 A1Huaneng Nuclear Energy Technology Research Institute Co. Ltd.
- Thermal bridge7 Mar 2024US 2024/0079153 A1BAE SYSTEMS plc
Most cited
By later US patents
- Nuclear power plant and a method of conditioning its power generation circuit25US 6,977,983 B2Pebble Bed Modular Reactor (Pty) Limited · 2005
- Apparatus and method for nuclear power and propulsion19US 5,428,653 AUniversity of New Mexico · 1995
- Gas-cooled high temperature nuclear reactors16US 4,243,487 AHochtemperatur-Kernkraftwerk GmbH (HKG) Gemeinsames Europaisches Unternehmen · 1981
- Gas cooled nuclear reactor with a pebble bed of spherical operating elements16US 5,019,322 AHochtemperatur-Reaktorbau GmbH · 1991
- Nuclear power installation with a high temperature pebble bed reactor11US 4,664,871 AHochtemperatur-Reaktorbau GmbH · 1987