ClassID:

200176

G21C7/24 - CPC Classification

Classification description:

Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section Selection of substances for use as neutron-absorbing material

Recent Application in this class:
#1
20260142045
2026-05-21

CONTROL ROD ASSEMBLY WITH ENHANCED CONTROL ROD WORTH USING HIGHLY ENRICHED B4C

#2
20260142043
2026-05-21

CONTROL ROD ASSEMBLY WITH ENHANCED CONTROL ROD WORTH

#3
20260081044
2026-03-19

CONTROL ROD APPARATUS FOR SMALL MODULAR REACTOR, AND SMALL MODULAR REACTOR COMPRISING SAME

#4
20250372272
2025-12-04

HIGH-POROSITY CERAMIC BURNABLE ABSORBERS

#5
20250333819
2025-10-30

ALLOY COMPOSITION OF TITANIUM-GADOLINIUM ALLOY WITH EXCELLENT NEUTRON ABSORPTION ABILITY AND TENSILE PROPERTIES AND NEUTRON ABSORBING STRUCTURAL MATERIAL MANUFACTURED BY USING SAME

#6
20250201430
2025-06-19

NEUTRON ABSORBER AND NEUTRON ABSORPTION CONTROL ROD FOR NUCLEAR REACTOR

#7
20250174369
2025-05-29

MOLTEN SALT REACTOR WITH HORIZONTALLY ACTUATED CONTROL BLADE

#8
20250149193
2025-05-08

GADOLINIUM OXIDE NANO PARTICLES IN COOLANT FOR REACTIVITY CONTROL

#9
20250062044
2025-02-20

NUCLEAR MATERIAL AND METHODS

#10
20240404716
2024-12-05

CONTROLLING A POWER OUTPUT OF A NUCLEAR REACTION USING CHEMICAL INJECTION

#11
20240355488
2024-10-24

PASSIVE CHEMICAL INJECTION SYSTEM FOR CONTROLLING A NUCLEAR REACTION BY DELIVERING A NEUTRON-ABSORBING CHEMICAL INTO A CONTAINMENT VESSEL

#12
20240153654
2024-05-09

NUCLEAR REACTOR AND FUEL

#13
20230395270
2023-12-07

POOL TYPE LIQUID METAL COOLED MOLTEN SALT REACTOR

#14
20230268085
2023-08-24

NEUTRON MODERATORS COMPRISING A POROUS METAL HYDRIDE ARTICLE, NUCLEAR REACTORS INCLUDING THE SAME, AND RELATED METHODS

#15
20230260668
2023-08-17

Nuclear reactor passive reactivity control system

#16
20230112687
2023-04-13

INTEGRATED IN-VESSEL NEUTRON SHIELD

#17
20220367073
2022-11-17

Controlling a power output of a nuclear reaction using chemical injection

#18
20220301733
2022-09-22

Nuclear Material and Methods

#19
20220246317
2022-08-04

Controlling a power output of a nuclear reactor without using control rods

#20
20220185679
2022-06-16

NEUTRON ABSORBER SYNTHESIS SYSTEM

#21
20220108808
2022-04-07

Control rods for light water reactors

#22
20210335506
2021-10-28

Elimination of neutrons from nuclear reactions in a reactor, in particular clean laser boron-11 fusion without secondary contamination

#23
20210183530
2021-06-17

Reactor shutdown system with melting gate member for segregating neutron absorbing material compartment from core

#24
20200365285
2020-11-19

Subcritical reactivity monitor utilizing prompt self-powered in-core detectors

#25
20200321135
2020-10-08

Elimination of neutrons from nuclear reactions in a reactor, in particular clean laser boron-11 fusion without secondary contamination

#26
20200239355
2020-07-30

GLASS COMPOSITION, NEUTRON-ABSORBING MATERIAL COMPRISING SAME, METHOD FOR MANAGING MOLTEN FUEL, METHOD FOR TAKING OUT MOLTEN FUEL, AND METHOD FOR STOPPING NUCLEAR REACTOR

#27
20200114074
2020-04-16

Method for dynamic pressure control in a fluid injector system

#28
20200027604
2020-01-23

Controlling a power output of a nuclear reaction without control rods

#29
20200027603
2020-01-23

Controlling a power output of a nuclear reaction without control rods

#30
20200027592
2020-01-23

Boron injection system for controlling a nuclear reaction by delivering boron into a containment vessel

#31
20190315498
2019-10-17

NUCLEAR THERMAL PROPULSION ROCKET ENGINE

#32
20190172595
2019-06-06

STICKY NEUTRON MODERATOR CORE PELLETS

#33
20190115113
2019-04-18

Magneto-rheological nuclear reactivity distribution control elements

#34
20190066853
2019-02-28

Control rods for light water reactors

#35
20180374590
2018-12-27

Absorber rod assembly for nuclear reactor

#36
20180174693
2018-06-21

Device for passive protection of a nuclear reactor

#37
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

#38
20170249999
2017-08-31

Passive inherent reactivity coefficient control in nuclear reactors

#39
20170243664
2017-08-24

Reactivity control in a molten salt reactor

#40
20170140842
2017-05-18

Subcritical Reactivity Monitor Utilizing Prompt Self-Powered Incore Detectors

#41
20160232995
2016-08-11

Magneto-rheological fluid based filter/reflector

#42
20150170768
2015-06-18

Nuclear reactor fluence reduction systems and methods

#43
20130341555
2013-12-26

Method of fabricating liquid-metal coolants for nuclear reactors

#44
20130051510
2013-02-28

Control rod for a nuclear power light water reactor

#45
20120281805
2012-11-08

Neutron absorber consisting of refractory metal infused with discrete neutron absorber

#46
20120207263
2012-08-16

Control rod for high temperature gas reactor

#47
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

#48
20120163525
2012-06-28

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

#49
20110170652
2011-07-14

Neutron absorber consisting of refractory metal infused with discrete neutron absorber

#50
20100027732
2010-02-04

Methods for absorbing neutrons

#51
20080050270
2008-02-28

Neutron Absorption Effectiveness for Boron Content Aluminum Materials

#52
20060034412
2006-02-16

Cluster for adjusting a nuclear reactor core reactivity, absorber rod of the cluster and method for protecting the absorber rod against wear