Description
Class G21C : NUCLEAR REACTORS
Subclass 1/02: Reactors Fast fission reactors, i.e. reactors not using a moderator
G21C 1/02
Sub-Class
Stats
- 128 US PATENTS IN FORCE
- 34 US APPLICATIONS PENDING
- 24 Total Patent Owners
- 304 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12246992 | Modified polymer derived ceramics for additive manufacturing, additive manufacturing using same, and ceramic bodies manufactured thereby | Mar 31, 20 | Mar 11, 25 | BWXT Advanced Technologies LLC |
| 12154697 | Anti-proliferation safeguards for nuclear fuel salts | Jan 20, 22 | Nov 26, 24 | TerraPower, LLC. |
| 12106865 | Method and apparatus for real-time learning-based augmented irradiation control and optimization | Apr 21, 21 | Oct 01, 24 | Oregon State University |
| 12100523 | Controlling a power output of a nuclear reaction using chemical injection | Jun 02, 22 | Sep 24, 24 | NuScale Power, LLC |
| 12046380 | Doppler reactivity augmentation device | Jan 15, 21 | Jul 23, 24 | TerraPower, LLC. |
| 11996208 | Controlling a power output of a nuclear reactor without using control rods | Mar 14, 22 | May 28, 24 | NUSCALE POWER, LLC |
| 11990249 | Fuel element with multi-smear density fuel | Jul 22, 19 | May 21, 24 | TerraPower, LLC. |
| 11948698 | Experimental facility and method for studying jet impact characteristics at core outlet of fast reactor | Dec 28, 21 | Apr 02, 24 | Xi'an Jiaotong University |
| 11894155 | Method of constructing a nuclear reactor having reactor core and control elements supported by reactor vessel head | Dec 13, 22 | Feb 06, 24 | TerraPower, LLC. |
| 11854709 | Fast reactor with primary and backup control rods | Feb 25, 21 | Dec 26, 23 | Hitachi-GE Nuclear Energy, Ltd. |
| 11837374 | Zamak stabilization of spent sodium-cooled reactor fuel assemblies | Apr 14, 21 | Dec 05, 23 | TerraPower, LLC. |
| 11798697 | Passive heat removal system for nuclear reactors | Jan 27, 21 | Oct 24, 23 | TerraPower, LLC. |
| 11798694 | Molten fuel nuclear reactor | Oct 21, 20 | Oct 24, 23 | TerraPower, LLC. |
| 11791057 | Reflectors for molten chloride fast reactors | Jul 06, 21 | Oct 17, 23 | TerraPower, LLC. |
| 11742099 | Very simplified boiling water reactors for commercial electricity generation | May 31, 20 | Aug 29, 23 | Hitachi America Ltd. |
| 11728049 | Reactor core and control elements supported by a reactor vessel head | Feb 01, 21 | Aug 15, 23 | TerraPower, LLC. |
| 11610692 | Fast-neutron reactor fuel rod | Sep 01, 17 | Mar 21, 23 | STATE ATOMIC ENERGY CORPORATION “ROSATOM” ON BEHALF OF THE RUSSIAN FEDERATION |
| 11574746 | Flux-shifting reactivity control system | Oct 27, 20 | Feb 07, 23 | TerraPower, LLC. |
| 11532404 | Travelling wave reactor for space exploration | Jun 07, 21 | Dec 20, 22 | Shanghai Jiao Tong University |
| 11527334 | Boron injection system for controlling a nuclear reaction by delivering boron into a containment vessel | Dec 31, 18 | Dec 13, 22 | NuScale Power, LLC |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0079,027 | DOPPLER REACTIVITY AUGMENTATION DEVICE | Jul 08, 24 | Mar 06, 25 | Not available |
| 2024/0404,716 | CONTROLLING A POWER OUTPUT OF A NUCLEAR REACTION USING CHEMICAL INJECTION | Aug 13, 24 | Dec 05, 24 | NuScale Power, LLC |
| 2024/0355,487 | Fuel Assembly for Sodium-Cooled Metal Fuel Fast Reactor, Reactor Core, and Manufacturing Method of Fuel Assembly | Apr 16, 24 | Oct 24, 24 | Not available |
| 2024/0355,488 | PASSIVE CHEMICAL INJECTION SYSTEM FOR CONTROLLING A NUCLEAR REACTION BY DELIVERING A NEUTRON-ABSORBING CHEMICAL INTO A CONTAINMENT VESSEL | Dec 11, 23 | Oct 24, 24 | Not available |
| 2024/0312,650 | BOILING WATER REACTORS | Jul 31, 23 | Sep 19, 24 | Not available |
| 2024/0249,851 | MOLTEN SALT REACTOR AND PASSIVE FUEL INJECTION METHOD THEREFOR | Oct 06, 22 | Jul 25, 24 | Not available |
| 2024/0203,611 | MOLTEN SALT NUCLEAR REACTOR OF THE FAST NEUTRON REACTOR TYPE, HAVING A VESSEL FILLED WITH INERT LIQUID SALTS AROUND THE REACTOR VESSEL BY WAY OF REACTOR DECAY HEAT REMOVAL (DHR) SYSTEM | Dec 18, 23 | Jun 20, 24 | Commissariat A L' Energie Atomique Et Aux Energies Alternatives |
| 2024/0203,613 | MOLTEN SALT NUCLEAR REACTOR, OF FAST NEUTRON TYPE, THE PRIMARY CIRCUIT OF WHICH CIRCULATES BY NATURAL CONVECTION | Dec 18, 23 | Jun 20, 24 | Commissariat A L' Energie Atomique Et Aux Energies Alternatives |
| 2024/0177,876 | FUEL ASSEMBLIES IN FAST REACTOR AND FAST REACTOR CORE | Nov 20, 23 | May 30, 24 | Not available |
| 2024/0153,652 | Core of Fast Reactor and Method of Operating Fast Reactor | Nov 13, 23 | May 09, 24 | Not available |
| 2024/0055,142 | Core of Fast Reactor | May 01, 23 | Feb 15, 24 | Hitachi-GE Nuclear Energy Ltd. |
| 2024/0013,935 | Core of Fast Reactor | Jun 30, 23 | Jan 11, 24 | Not available |
| 2023/0134,236 | REACTOR CORE | Apr 27, 21 | May 04, 23 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| 2023/0071,843 | FUEL ASSEMBLY AND CORE OF FAST REACTOR | Jun 02, 22 | Mar 09, 23 | Hitachi-GE Nuclear Energy Ltd. |
| 2022/0367,070 | STANDING WAVE NUCLEAR FISSION REACTOR AND METHODS | Jun 12, 22 | Nov 17, 22 | Not available |
| 2022/0344,064 | High-burnup Fast Reactor Metal Fuel | Jun 01, 21 | Oct 27, 22 | Not available |
| 2022/0013,242 | DUAL FLUID REACTOR - VARIANT WITH LIQUID METAL FISSIONABLE MATERIAL (DFR/M) | Nov 01, 19 | Jan 13, 22 | Not available |
| 2021/0012,912 | FAST-NEUTRON REACTOR FUEL ROD | Sep 01, 17 | Jan 14, 21 | STATE ATOMIC ENERGY CORPORATION "ROSATOM" ON BEHALF OF THE RUSSIAN FEDERATION |
| 2020/0343,006 | Fuel Element, Fuel Assembly, and Core | Apr 16, 20 | Oct 29, 20 | Not available |
| 2020/0082,950 | REACTOR PLANT AND METHOD OF OPERATING REACTOR PLANT | Apr 24, 19 | Mar 12, 20 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 41 Months (last 2 years Issuances)
- 41 Months (last 5 years Issuances)