ClassID:

200145

G21C5/02 - CPC Classification

Classification description:

Moderator or core structure; Selection of materials for use as moderator Details

Sub-classes:
Recent Application in this class:
#1
20260148869
2026-05-28

REACTOR CONTROL AND SHUTDOWN SYSTEMS

#2
20250246334
2025-07-31

Use of a Multi-Spectrum Microreactor to Produce Large Magnitude Out-Of-Core Thermal Neutron Fluxes Over Large Irradiation Volumes

#3
20250226126
2025-07-10

CORE COMPONENT RODLET WITH REATTACHMENT CAPABILITY

#4
20240412882
2024-12-12

CERMET FUEL ELEMENT AND FABRICATION AND APPLICATIONS THEREOF, INCLUDING IN THERMAL PROPULSION REACTOR

#5
20240371534
2024-11-07

NUCLEAR REACTOR FUEL ASSEMBLIES AND PROCESS FOR PRODUCTION

#6
20240233966
2024-07-11

DEVICES, SYSTEMS, AND METHODS FOR COOLING A NUCLEAR REACTOR WITH HYDRIDE MODERATORS

#7
20240233965
2024-07-11

NUCLEAR POWER GENERATOR, FUEL CARTRIDGES FOR NUCLEAR POWER GENERATOR, AND RELATED METHODS

#8
20240136077
2024-04-25

Nuclear power generator and fuel cartridges having variable electric load capacity to power a ship propeller

#9
20240127974
2024-04-18

Reactor design with controlled thermal neutron flux for enhanced neutron activation potential

#10
20240079153
2024-03-07

THERMAL BRIDGE

#11
20230411025
2023-12-21

Closed-vessel molten salt fission reactor

#12
20230360812
2023-11-09

NUCLEAR REACTOR UNIT AND METHOD FOR COOLING NUCLEAR REACTOR UNIT

#13
20230326618
2023-10-12

CARBIDE-BASED FUEL ASSEMBLY FOR THERMAL PROPULSION APPLICATIONS

#14
20230282373
2023-09-07

FUEL BUNDLE WITH TWISTED RIBBON FUEL RODLETS FOR NUCLEAR THERMAL PROPULSION APPLICATIONS, STRUCTURES FOR MANUFACTURE, AND METHODS OF MANUFACTURE

#15
20230132031
2023-04-27

NEUTRON ABSORBING EMBEDDED HYDRIDE SHIELD

#16
20230111998
2023-04-13

Method of operating a nuclear power plant

#17
20230075832
2023-03-09

ENERGY PRODICUTION DEVICE AND ASSOCIATED COMPONENTS, SYSTEMS, AND METHODS

#18
20230024338
2023-01-26

SKEWED-PIN (SPIN) MODERATOR BLOCKS FOR NUCLEAR REACTOR

#19
20230005628
2023-01-05

Closed-vessel molten salt fission reactor

#20
20220375641
2022-11-24

ADJUSTING WAIT TIME BETWEEN BURN CYCLES OR MERGING BURN CYCLES

#21
20220375636
2022-11-24

Multipurpose small modular fluoride-salt-cooled high-temperature reactor energy system

#22
20220375632
2022-11-24

VARIABLE FUEL ROD DIAMETER

#23
20220199270
2022-06-23

COOLANT CLEANUP SYSTEMS WITH DIRECT MIXING AND METHODS OF USING THE SAME

#24
20220115151
2022-04-14

Cermet fuel element and fabrication and applications thereof, including in thermal propulsion reactor

#25
20220115149
2022-04-14

Carbide-based fuel assembly for thermal propulsion applications

#26
20220076853
2022-03-10

OPTIMIZED NUCLEAR FUEL CORE DESIGN FOR A SMALL MODULAR REACTOR

#27
20220068512
2022-03-03

Method for design and additive manufacture of fission reactor core structure of inverted reactor

#28
20210375495
2021-12-02

Nuclear reactor fuel assemblies and process for production

#29
20210335510
2021-10-28

Reactor core having both nuclear fuel and a heat pipe in a module located in a solid neutron moderator

#30
20210319920
2021-10-14

Reactor design with controlled thermal neutron flux for enhanced neutron activation potential

#31
20210027900
2021-01-28

Reactor core having both nuclear fuel and a heat pipe in a module located in a solid neutron moderator

#32
20200273588
2020-08-27

Variable propellant density for passive reactivity control of nuclear thermal propulsion reactors

#33
20200027585
2020-01-23

Universal inverted reactor

#34
20190326027
2019-10-24

Nuclear reactor, methods for assembling and replacing thermocouple ducts, assembly for implementing these methods

#35
20190139655
2019-05-09

Molten salt reactor

#36
20190057783
2019-02-21

Method of operating a nuclear power plant

#37
20180277263
2018-09-27

Self-supporting radial neutron reflector

#38
20180277262
2018-09-27

Secondary shutdown structure of nuclear reactor by using sliding doors

#39
20180277260
2018-09-27

Optimized nuclear fuel core design for a small modular reactor

#40
20180268950
2018-09-20

Nuclear reactors including heat exchangers and heat pipes extending from a core of the nuclear reactor into the heat exchanger and related methods

#41
20180268948
2018-09-20

Thermal-neutron reactor core and design method for thermal-neutron reactor core

#42
20180257183
2018-09-13

Apparatus and method for baffle bolt repair

#43
20180062369
2018-03-01

Cable management systems

#44
20180061513
2018-03-01

Nuclear reactor, in particular liquid-metal-cooled compact nuclear reactor

#45
20180047465
2018-02-15

System, a device and a method for passive decay heat transport

#46
20170330640
2017-11-16

Molten salt reactor core with reflector

#47
20170330639
2017-11-16

Molten salt reactor

#48
20170316839
2017-11-02

Pressure-tube reactor with pressurized moderator

#49
20170301419
2017-10-19

Method of operating a pressurized-water nuclear reactor allowing same to pass from a plutonium equilibrium cycle to a uranium equilibrium cycle and corresponding nuclear fuel assembly

#50
20170249999
2017-08-31

Passive inherent reactivity coefficient control in nuclear reactors

#51
20170162278
2017-06-08

Block-type movable reflector/moderator (RM) for nuclear reactor control

#52
20170084354
2017-03-23

Molten salt reactor that includes multiple fuel wedges that define fuel channels

#53
20160189804
2016-06-30

Nuclear reactor core having moderator blocks with fissile material fuel rods and hydrogen-containing glass microspheres coated with burnable poison

#54
20160099081
2016-04-07

Moderating fuel rods including metal hydride and methods of moderating fuel bundles of boiling water reactors using the same

#55
20150243376
2015-08-27

MOLTEN SALT FISSION REACTOR

#56
20150228363
2015-08-13

NUCLEAR REACTORS AND RELATED METHODS AND APPARATUS

#57
20150228362
2015-08-13

Core of light water reactor and fuel assembly

#58
20150170768
2015-06-18

Nuclear reactor fluence reduction systems and methods

#59
20150036779
2015-02-05

Integral molten salt reactor

#60
20140270045
2014-09-18

Nuclear reactor cores comprising a plurality of fuel elements, and fuel elements for use therein

#61
20140211904
2014-07-31

Heterogeneous core designs and thorium based fuels for heavy water reactors

#62
20130287158
2013-10-31

Suspended upper internals with tie rod couplings for compact nuclear reactor

#63
20130272470
2013-10-17

Self-supporting radial neutron reflector

#64
20130170601
2013-07-04

Particulate removal system

#65
20130121452
2013-05-16

Pressure-tube reactor with pressurized moderator

#66
20130083878
2013-04-04

NUCLEAR REACTORS AND RELATED METHODS AND APPARATUS

#67
20130051509
2013-02-28

Initial Core of Nuclear Reactor and Method of Loading Fuel Assemblies of Nuclear Reactor

#68
20120288048
2012-11-15

Nuclear reactor control method and apparatus

#69
20120269314
2012-10-25

High-temperature gas-cooled reactor steam generating system and method

#70
20120219102
2012-08-30

Nuclear battery based on hydride/thorium fuel

#71
20120189089
2012-07-26

Method of operating a pressurized-water nuclear reactor allowing same to pass from a plutonium-equilibrium cycle to a uranium-equilibrium cycle and corresponding nuclear fuel assembly

#72
20120163525
2012-06-28

Method of operating a pressurized-water nuclear reactor for reaching a plutonium equilibrium cycle

#73
20120087455
2012-04-12

Electromagnetic flow regulator, system, and methods for regulating flow of an electrically conductive fluid

#74
20120051481
2012-03-01

Two-fluid molten-salt reactor

#75
20110293061
2011-12-01

Liquid fuel nuclear fission reactor fuel pin

#76
20110164720
2011-07-07

Core of light water reactor and fuel assembly

#77
20100135452
2010-06-03

Liquid-metal-cooled fast reactor core comprising nuclear fuel assembly with nuclear fuel rods with varying fuel cladding thickness in each of the reactor core regions

#78
20070153959
2007-07-05

Method and system for optimizing a refueling outage schedule

#79
20070143083
2007-06-21

Method and system for designing a nuclear reactor core for uprated power operations

#80
17176752
2024-12-24

Moderated nuclear reactor