ClassID:

200363

G21D3/04 - CPC Classification

Classification description:

Control of nuclear power plant Safety arrangements

Sub-classes:
Recent Application in this class:
#1
20260155267
2026-06-04

NUCLEAR REACTOR PROTECTION SYSTEMS AND METHODS

#2
20260148874
2026-05-28

AI GOVERNANCE AND TRUST ATTRIBUTION FOR FUSION ENERGY CONTROL SYSTEMS

#3
20260094732
2026-04-02

MOBILE DATA CENTER POWERED BY NUCLEAR AND RENEWABLE ENERGY

#4
20260004944
2026-01-01

AUTOMATION SYSTEM FOR ACCIDENT ANALYSIS OF NUCLEAR POWER PLANT AND AUTOMATION METHOD THEREOF

#5
20250329477
2025-10-23

MOLTEN SALT NUCLEAR REACTOR AND METHOD OF AUTOMATIC SHUTDOWN OF SUCH NUCLEAR REACTOR

#6
20250316397
2025-10-09

METHOD AND SYSTEM FOR MONITORING A NUCLEAR PLANT, WITH DETECTION AND CHARACTERIZATION OF AN IMBALANCE

#7
20250292918
2025-09-18

MICRO NUCLEAR REACTOR

#8
20250157683
2025-05-15

PLANT CONTROL PROTECTION DEVICE

#9
20250029741
2025-01-23

METHOD FOR ANALYZING SEVERE ACCIDENT AT NUCLEAR POWER PLANT BY USING MODULAR ANALYSIS CODE

#10
20240420858
2024-12-19

HIGH-PRECISION ANALYSIS METHOD FOR KEY THERMAL SAFETY PHENOMENA IN NUCLEAR REACTOR BASED ON PARTICLE METHOD

#11
20240312658
2024-09-19

Control Apparatus and Control Method of Power Generation Plant

#12
20240304349
2024-09-12

NETWORK AND INFORMATION SYSTEMS AND METHODS FOR SHIPYARD MANUFACTURED AND OCEAN DELIVERED NUCLEAR PLATFORM

#13
20240233969
2024-07-11

Apparatus and Method for Diganosis and Prediction of Severe Accidents in Nuclear Power Plant using Artificial Intelligence and Storage Medium Storing Instructions to Performing Method for Digonosis and Prediction of Severe Accidents in Nuclear Power Plant

#14
20240177878
2024-05-30

METHOD OF EVALUATING THERMAL-HYDRAULIC ANALYSIS OF CONTAINMENT FACILITY AND COMPUTER PROGRAM FOR EXECUTING THE METHOD

#15
20240136078
2024-04-25

Apparatus and Method for Diganosis and Prediction of Severe Accidents in Nuclear Power Plant using Artificial Intelligence and Storage Medium Storing Instructions to Performing Method for Digonosis and Prediction of Severe Accidents in Nuclear Power Plant

#16
20240087761
2024-03-14

NUCLEAR REACTOR PROTECTION SYSTEMS AND METHODS

#17
20240079155
2024-03-07

DISTRIBUTED MODULAR NUCLEAR POWER PLANT LAYOUT ARCHITECTURE

#18
20240021333
2024-01-18

DEVICES, SYSTEMS, AND METHODS FOR ENHANCING THE IMPLEMENTATION OF CONTROL CIRCUITS FOR NUCLEAR INSTRUMENTATION AND CONTROL SYSTEMS

#19
20240012392
2024-01-11

COMPONENT INTERFACE MODULE WITH ENHANCED USER CONVENIENCE

#20
20230352200
2023-11-02

CONTROL SWITCHING DEVICE

#21
20230290527
2023-09-14

NUCLEAR REACTOR PROTECTION SYSTEMS AND METHODS

#22
20230223160
2023-07-13

REACTOR SECONDARY SIDE PASSIVE RESIDUAL HEAT REMOVAL SYSTEM

#23
20230125411
2023-04-27

EXPOSURE DOSE MEASUREMENT SIMULATION DEVICE AND METHOD

#24
20230118891
2023-04-20

DEVICE FOR CONTROLLING A PLURALITY OF NUCLEAR REACTORS IN CLUSTERS

#25
20230092472
2023-03-23

Method and System for Intelligent Monitoring of State of Nuclear Power Plant

#26
20220375640
2022-11-24

Dynamic characteristic analysis method of DET and RELAP5 coupling based on universal instrumental variable method

#27
20220328205
2022-10-13

Distributed modular nuclear power plant layout architecture

#28
20220157480
2022-05-19

Nuclear-power-plant computer-based procedure display device, safety control and monitoring system, and plant operation monitoring system

#29
20220139582
2022-05-05

DEVICES, SYSTEMS, AND METHODS FOR CONFIGURING THE LAYOUT OF UNIT CELL OF A REACTOR CORE

#30
20220084704
2022-03-17

PHYSICS-GUIDED ANALYTICAL MODEL VALIDATION

#31
20220037045
2022-02-03

METHOD FOR MONITORING NUCLEAR POWER PLANT IN TRANSIENT STATE BY USING SIGNAL CLASSIFICATION

#32
20220027731
2022-01-27

Systems and methods for real-time data processing and for emergency planning

#33
20210410229
2021-12-30

BUSHING UNIT TUBULAR ELECTRIC HEATERS

#34
20210335511
2021-10-28

Method and system for bringing a nuclear power plant into a safe state after extreme effect

#35
20210313082
2021-10-07

Steam generator accident mitigation system

#36
20210287813
2021-09-16

Nuclear reactor protection systems and methods

#37
20210225538
2021-07-22

Methods for protection of nuclear reactors from thermal hydraulic/neutronic core instability

#38
20210210225
2021-07-08

Nuclear reactor protection systems and methods

#39
20210202114
2021-07-01

Dry stand-by liquid control system for a nuclear reactor

#40
20210183530
2021-06-17

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

#41
20210149383
2021-05-20

Systems and methods for real-time data processing and for emergency planning

#42
20210141354
2021-05-13

Statistical overpower penalty calculation system for generic thermal margin analysis model

#43
20210082591
2021-03-18

Network and information systems and methods for shipyard manufactured and ocean delivered nuclear platform

#44
20200411205
2020-12-31

Floating nuclear reactor protection system

#45
20200411204
2020-12-31

EMERGENCY COOLING WATER SYSTEM FOR A FLOATING NUCLEAR REACTOR

#46
20200381132
2020-12-03

Power plant chemical control system

#47
20200343009
2020-10-29

Nuclear reactor protection systems and methods

#48
20200335236
2020-10-22

Method for determining at least one threshold value of at least one operating parameter of a nuclear reactor, and associated computer program and electronic system

#49
20200300373
2020-09-24

Stem anti-rotation device for nuclear reactor power plant gate valves and maintenance method using the stem anti-rotation device

#50
20200234836
2020-07-23

System and method for reducing atmospheric release of radioactive materials caused by severe accident

#51
20200203032
2020-06-25

Surrogate isotope-containing materials for emergency response training and Methods of formation and dispersal

#52
20200203031
2020-06-25

Nuclear reactor light-based fuel alignment systems and methods

#53
20200176141
2020-06-04

Screen sharing system of digital main control room in nuclear power plant

#54
20200161011
2020-05-21

Cooling facility in a reactor vessel and electric power generation system

#55
20200143950
2020-05-07

Utilizing Decay Heat via Steam Cycles to Produce Electric Power on Site to Eliminate Accidents Caused by Station Blackout in Nuclear Power Plants

#56
20200141351
2020-05-07

Nuclear reactor cooling arrangement having a stirling engine

#57
20200135353
2020-04-30

Passive electrical component for safety system shutdown using Faraday's law

#58
20200135352
2020-04-30

Passive electrical component for safety system shutdown using Ampere's Law

#59
20200082952
2020-03-12

NUCLEAR POWER PLANT DEFENSE-IN-DEPTH SAFETY APPARATUS HAVING DIVERSITY

#60
20200072087
2020-03-05

External reactor vessel cooling and electric power generation system

#61
20200027597
2020-01-23

Independent process signal control and monitoring system for a nuclear reactor containment vessel

#62
20200027595
2020-01-23

Fault tolerant turbine speed control system

#63
20190392959
2019-12-26

Predicting Multiple Nuclear Fuel Failures, Failure Locations and Thermal Neutron Flux 3D Distributions Using Artificial Intelligent and Machine Learning

#64
20190237207
2019-08-01

Coolant tank, and passive containment cooling system comprising same

#65
20190180886
2019-06-13

Systems usable in nuclear environment for providing breathing gas

#66
20190180885
2019-06-13

Subcritical core reactivity bias projection technique

#67
20190172597
2019-06-06

Heat pipe assembly of nuclear apparatus having fiber optical temperature detection system

#68
20190139659
2019-05-09

System for setting tolerance limit of correlation by using repetitive cross-validation and method thereof

#69
20190120087
2019-04-25

Managing water-supply pumping for an electricity production plant circuit

#70
20190057790
2019-02-21

Nuclear instrumentation isolated output signal scaling method and system employing same

#71
20180366235
2018-12-20

Nuclear-power-plant computer-based procedure display device, safety control and monitoring system, and plant operation monitoring system

#72
20180330833
2018-11-15

Managing dynamic forces on a nuclear reactor system

#73
20180254115
2018-09-06

Semi-submersible nuclear power plant and multi-purpose platform

#74
20180247721
2018-08-30

PLANT OPERATION ASSISTANCE SYSTEM AND PLANT OPERATION ASSISTANCE METHOD

#75
20180240558
2018-08-23

Emergency core cooling system and boiling water reactor plant using the same

#76
20180233240
2018-08-16

Nuclear power plant

#77
20180204095
2018-07-19

Systems and methods to evaluate and reduce outages in power plants

#78
20180202869
2018-07-19

Fiber optic temperature sensing system and method utilizing brillouin scattering for large, well-ventilated spaces

#79
20180197643
2018-07-12

Monitoring and Controlling Exothermic Reactions Using Photon Detection Devices

#80
20180190395
2018-07-05

Nuclear reactor protection systems and methods

#81
20180182503
2018-06-28

Plant abnormality prediction detection system

#82
20180174695
2018-06-21

Integration of real-time measurements and atomistic modeling to license nuclear components

#83
20180158556
2018-06-07

Abnormality diagnosis system

#84
20180157378
2018-06-07

Operation assistance apparatus and operation assistance method

#85
20180144836
2018-05-24

Emergency and back-up cooling of nuclear fuel and reactors and fire-extinguishing, explosion prevention using liquid nitrogen

#86
20180074934
2018-03-15

METHOD FOR CHECKING EQUIVALENCE OF CODE, NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM, COMPUTER PROGRAM PRODUCT AND COMPUTER FOR IMPLEMENTING THE METHOD

#87
20180040386
2018-02-08

Air-cooled heat exchanger and system and method of using the same to remove waste thermal energy from radioactive materials

#88
20180019030
2018-01-18

Safety critical system

#89
20180019029
2018-01-18

Apparatus and system for simulating maintenance of reactor core protection system

#90
20170372805
2017-12-28

Containment internal passive heat removal system

#91
20170316842
2017-11-02

Absolute Technologies Maximizing Cycled Energy

#92
20170297298
2017-10-19

Fireproof construction and method for using same

#93
20170275141
2017-09-28

Method for Efficient Power Plant Maintenance

#94
20170178757
2017-06-22

Multi-modular power plant with off-grid power source

#95
20170178756
2017-06-22

Multi-modular power plant with dedicated electrical grid

#96
20170169906
2017-06-15

System usable in nuclear environment for providing breathing gas

#97
20170076825
2017-03-16

Portable apparatus for the boration of continuously flowing water

#98
20160363314
2016-12-15

Steam dump device for a nuclear power plant

#99
20160336083
2016-11-17

Remote heat removal system

#100
20160329117
2016-11-10

Emergency decision-making assistance system

#101
20160329114
2016-11-10

Emergency and back-up cooling of nuclear fuel and reactors and fire-extinguishing, explosion prevention using liquid nitrogen

#102
20160329113
2016-11-10

SLIMM-Scalable Liquid Metal Cooled Small Modular Reactor

#103
20160307655
2016-10-20

NUCLEAR INSTRUMENTATION AND CONTROL SYSTEM

#104
20160203883
2016-07-14

Semi Submersible Nuclear Power Plant and Multi-Purpose Platform

#105
20160189811
2016-06-30

Remote monitoring of critical reactor parameters

#106
20160189807
2016-06-30

Steam generator level control system and method of preventing oscillation of steam generator level

#107
20160180974
2016-06-23

Passive integral isolation valve

#108
20160141056
2016-05-19

Passive nuclear reactor cooling system using compressed gas energy and coolant storage outside nuclear plant

#109
20160118149
2016-04-28

Emission monitoring system for a venting system of a nuclear power plant

#110
20160055924
2016-02-25

Boiling water type nuclear power plant

#111
20160042815
2016-02-11

Actuating a nuclear reactor safety device

#112
20160027537
2016-01-28

Fiber optic temperature sensing system and method utilizing Brillouin scattering for large, well-ventilated spaces

#113
20160019987
2016-01-21

Pressure relief system for the containment of a nuclear power facility, nuclear power facility and method of operating a pressure relief system

#114
20160019986
2016-01-21

Venting system for the containment of a nuclear plant and method of operating the venting system

#115
20150357064
2015-12-10

WATER INTAKE INSTALLATION FOR COOLING A NUCLEAR POWER PLANT, AND NUCLEAR POWER PLANT COMPRISING SUCH AN INSTALLATION

#116
20150310949
2015-10-29

WATER INTAKE INSTALLATION FOR COOLING A NUCLEAR POWER PLANT, AND NUCLEAR POWER PLANT COMPRISING SUCH AN INSTALLATION

#117
20150227161
2015-08-13

Methods and apparatuses for reducing common mode failures of nuclear safety-related software control systems

#118
20150221403
2015-08-06

Facility for reducing radioactive material and nuclear power plant having the same

#119
20150221399
2015-08-06

In-vessel control rod drive mechanism and nuclear reactor with the same

#120
20150206612
2015-07-23

Solid state electrical generator

#121
20150187448
2015-07-02

Mobile boration system

#122
20150187447
2015-07-02

Managing dynamic forces on a nuclear reactor system

#123
20150162105
2015-06-11

High temperature gas cooled reactor steam generation system

#124
20150036778
2015-02-05

Reactor state monitoring apparatus and monitoring method thereof

#125
20140211901
2014-07-31

Nuclear power plant cable and monitoring system therefor

#126
20140161218
2014-06-12

Radioactive capture system for severe accident containment of light water reactors (LWRS), and method thereof

#127
20140152098
2014-06-05

Managing electrical power for a nuclear reactor system

#128
20140150994
2014-06-05

Air-cooled heat exchanger and system and method of using the same to remove waste thermal energy from radioactive materials

#129
20140105348
2014-04-17

Emergency and back-up cooling of nuclear fuel and reactors

#130
20140072090
2014-03-13

METHOD AND SYSTEM FOR AN ALTERNATE RPV ENERGY REMOVAL PATH

#131
20140072085
2014-03-13

METHOD AND SYSTEM FOR A SPENT FUEL POOL LEVEL MEASUREMENT WITHOUT ELECTRICAL POWER

#132
20140069515
2014-03-13

Mobile boration system

#133
20140001863
2014-01-02

Method and system for supplying emergency power to nuclear power plant

#134
20130294562
2013-11-07

Reactor shutdown trip algorithm using derivatives

#135
20130294561
2013-11-07

Reactor shutdown trip algorithm

#136
20130272474
2013-10-17

PASSIVE CONTAINMENT AIR COOLING FOR NUCLEAR POWER PLANTS

#137
20130272471
2013-10-17

Island mode for nuclear power plant

#138
20130272469
2013-10-17

DEVICE AND METHOD FOR REACTOR AND CONTAINMENT MONITORING

#139
20130271287
2013-10-17

Operation management support apparatus for power plant

#140
20130266107
2013-10-10

METHODS FOR PROTECTION OF NUCLEAR REACTORS FROM THERMAL HYDRAULIC/NEUTRONIC CORE INSTABILITY

#141
20130204453
2013-08-08

Control system and method for nuclear power facility

#142
20130204405
2013-08-08

Control device and nuclear power plant control system

#143
20130202074
2013-08-08

Control system for nuclear facility and control method for nuclear facility

#144
20130182809
2013-07-18

Nuclear power plant control system and nuclear power plant control method

#145
20130180399
2013-07-18

Method for filtration of harmful gas effluents from a nuclear power plant

#146
20130177119
2013-07-11

CONTROL DEVICE AND NUCLEAR POWER PLANT CONTROL SYSTEM

#147
20130170599
2013-07-04

Assembly and method for injecting water containing a neurton-absorbing element to cool a nuclear reactor core in a crisis situation

#148
20130170595
2013-07-04

Reactor shutdown trip algorithm using derivatives

#149
20130156145
2013-06-20

Method and apparatus for an alternative suppression pool cooling for boiling water reactors

#150
20130156144
2013-06-20

Method and apparatus for an alternative remote spent fuel pool cooling system for light water reactors

#151
20130156143
2013-06-20

EMERGENCY CORE COOLING SYSTEM (ECCS) FOR NUCLEAR REACTOR EMPLOYING CLOSED HEAT TRANSFER PATHWAYS

#152
20130156142
2013-06-20

Critical heat flux prediction device, critical heat flux prediction method and safety evaluation system

#153
20130153715
2013-06-20

Support apparatus for supporting dosimetry system in proximity to reactor apparatus

#154
20130152588
2013-06-20

METHOD AND APPARATUS FOR CONTROLLING OUTPUT OF PRESSURE SETTING SIGNAL TO AUTOMATICALLY CONTROL STEAM BYPASS CONTROL SYSTEM, AND METHOD AND APPARATUS FOR AUTOMATICALLY CONTROLLING STEAM BYPASS CONTROL SYSTEM BY USING THE PRESSURE SETTING SIGNAL

#155
20130140005
2013-06-06

Condensation chamber cooling system

#156
20130136222
2013-05-30

Control system for plant

#157
20130129028
2013-05-23

Control system for nuclear facilities

#158
20130121454
2013-05-16

Semi-portable emergency cooling system for removing decay heat from a nuclear reactor

#159
20130114776
2013-05-09

Fault tolerant turbine speed control system

#160
20130108004
2013-05-02

Passive cooling apparatus of spent fuel pool

#161
20130058448
2013-03-07

VIBRO-ACOUSTIC SENSORS FOR MATERIALS CHARACTERIZATION AND RELATED METHODS AND SYSTEMS

#162
20130044848
2013-02-21

OPERATION MONITORING APPARATUS OF NUCLEAR POWER PLANT

#163
20130028365
2013-01-31

POWER GENERATION FROM DECAY HEAT FOR SPENT NUCLEAR FUEL POOL COOLING AND MONITORING

#164
20130025212
2013-01-31

Atmospheric retention passive system for nuclear buildings

#165
20120281802
2012-11-08

EMERGENCY SYSTEM

#166
20120281801
2012-11-08

Core thermal limit value monitoring device, core monitoring system and core thermal limit value monitoring method

#167
20120236980
2012-09-20

NUCLEAR POWER STATION

#168
20120189087
2012-07-26

OSCILLATION POWER RANGE MONITOR AND METHOD OF CHECKING SOUNDNESS THEREOF

#169
20120185222
2012-07-19

Full spectrum LOCA evaluation model and analysis methodology

#170
20120136589
2012-05-31

NUCLEAR-POWER-PLANT SOUNDNESS EVALUATION SYSTEM

#171
20120121057
2012-05-17

Nuclear engineering plant and closure apparatus for its containment

#172
20120082912
2012-04-05

System and method for maintaining and establishing operational readiness in a fuel cell backup system of a nuclear reactor system

#173
20120076255
2012-03-29

Alternate feedwater injection system to mitigate the effects of aircraft impact on a nuclear power plant

#174
20120051487
2012-03-01

REACTOR CONTAINMENT STRUCTURE

#175
20110249784
2011-10-13

DRIVING SYSTEM OF RELIEF SAFETY VALVE

#176
20110202163
2011-08-18

PLANT PROTECTION SYSTEM AND METHOD USING FIELD PROGRAMMABLE GATE ARRAY

#177
20110158879
2011-06-30

Methods of controlling hydrogen concentrations in an offgas system of a nuclear reactor by passive air injection

#178
20110150162
2011-06-23

Automated periodic surveillance testing method and apparatus in digital reactor protection system

#179
20110060582
2011-03-10

Diversity and defense-in-depth simulation apparatus

#180
20110015903
2011-01-20

Method of Searching for Positions to Place Control Rods with Crack in a Boiling Water Reactor Core

#181
20100322368
2010-12-23

Enhanced steam dump (bypass) control system

#182
20100260308
2010-10-14

Method, system, and apparatus for selectively transferring thermoelectrically generated electric power to nuclear reactor operation systems

#183
20100260307
2010-10-14

Method and system for the thermoelectric conversion of nuclear reactor generated heat

#184
20100260306
2010-10-14

Method and system for the thermoelectric conversion of nuclear reactor generated heat

#185
20100260305
2010-10-14

Method, system, and apparatus for the thermoelectric conversion of gas cooled nuclear reactor generated heat

#186
20100246741
2010-09-30

NUCLEAR-PLANT SAFETY SYSTEM OPERATING DEVICE

#187
20100181508
2010-07-22

Safety valve drive system

#188
20100158185
2010-06-24

Method and apparatus of estimating dryout properties in a nuclear light water reactor

#189
20100142666
2010-06-10

Xenon oscillation prediction method and computer program for xenon oscillation prediction

#190
20100091928
2010-04-15

Protection systems for nuclear boiling water reactors

#191
20090257544
2009-10-15

Methods and devices relating to a nuclear light water reactor of the boiling water kind

#192
20090067565
2009-03-12

Nuclear engineering plant and closure apparatus for its containment

#193
20090020179
2009-01-22

Leakproof draft system pressure/vacuum relief device for power plants

#194
20080317193
2008-12-25

Emergency core cooling system

#195
20080152066
2008-06-26

Protection systems for and methods of operating nuclear boiling water reactors

#196
20080069290
2008-03-20

Integrated monitoring method for nuclear device and system using the same

#197
20070213959
2007-09-13

Computer-implemented method and system for designing a nuclear reactor core which satisfies licensing criteria

#198
20070185700
2007-08-09

Safety protection instrumentation system and method of operating the system

#199
20070002997
2007-01-04

Method of improving nuclear reactor performance during reactor core operation

#200
15657127
2018-05-08

Cooling overheating reactor using compressed gas to propel liquid to reactor