ClassID:

200250

G21C15/243 - CPC Classification

Classification description:

Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants; Promoting flow of the coolant for liquids

Sub-classes:
Recent Application in this class:
#1
20260128185
2026-05-07

MICRO INTEGRAL NUCLEAR REACTOR

#2
20260120896
2026-04-30

INSERTS AND METHODS FOR CONTROLLING FUEL ASSEMBLY COOLANT FLOW RATES

#3
20260045379
2026-02-12

SYSTEMS AND METHODS FOR REDUCING NONCONDENSABLE GAS BUILDUP IN COOLANT SYSTEMS

#4
20260045376
2026-02-12

SYSTEM & METHOD FOR 3-D PRINTING A NUCLEAR REACTOR

#5
20260038704
2026-02-05

SYSTEM FOR HEAT TRANSFER BETWEEN PRIMARY AND SECONDARY FLUID CIRCUITS WITHIN A DIFFUSION-BONDED PRESSURE VESSEL WALL FOR A NUCLEAR REACTOR

#6
20260011461
2026-01-08

POOL-TYPE NUCLEAR REACTOR SYSTEM HAVING A PARALLEL FLOW PATH FOR RESIDUAL HEAT REMOVAL

#7
20260011460
2026-01-08

SYSTEMS AND METHODS FOR DECAY HEAT REMOVAL FROM AN EXTERIOR OF A NUCLEAR REACTOR

#8
20250329477
2025-10-23

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

#9
20250259757
2025-08-14

DRILLHOLE NUCLEAR REACTOR

#10
20250132064
2025-04-24

DIFFUSION-BONDED PRESSURE VESSEL FOR NUCLEAR REACTOR

#11
20250022620
2025-01-16

Molten Salt Nuclear Reactor of the Fast Neutron Reactor Type, Having a Design of the Primary Circuit Allowing Exploitation which is Versatile in Terms of Fuel and Mode of Operation

#12
20240428960
2024-12-26

FUEL-MODERATOR INVERSION FOR SAFER NUCLEAR REACTORS

#13
20240339231
2024-10-10

DRILLHOLE NUCLEAR REACTOR

#14
20240304346
2024-09-12

PASSIVE COOLING SYSTEM FOR NUCLEAR REACTOR AND METHOD FOR OPERATING THE SAME

#15
20240266083
2024-08-08

NUCLEAR STEAM SUPPLY AND START-UP SYSTEM, PASSIVELY-COOLED SPENT NUCLEAR FUEL POOL SYSTEM AND METHOD THEREFOR, COMPONENT COOLING WATER SYSTEM FOR NUCLEAR POWER PLANT, PASSIVE REACTOR COOLING SYSTEM, STEAM GENERATOR FOR NUCLEAR STEAM SUPPLY SYSTEM

#16
20240233965
2024-07-11

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

#17
20240229813
2024-07-11

Rotary machine and primary motor-pump assembly provided with this rotary machine

#18
20240136077
2024-04-25

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

#19
20240120117
2024-04-11

MOLTEN SALT FISSION REACTOR WITH INTEGRATED PRIMARY EXCHANGER AND ELECTROGENERATOR COMPRISING SUCH A REACTOR

#20
20240006085
2024-01-04

SYSTEM FOR CONTROL OF EXTERNALLY HEATED TURBINE ENGINE

#21
20230395271
2023-12-07

SYSTEMS AND METHODS FOR REDUCING NONCONDENSABLE GAS BUILDUP IN COOLANT SYSTEMS

#22
20230307150
2023-09-28

REACTOR COOLING SYSTEM FOR DISASTER ACCIDENT, AND REACTOR COOLING METHOD USING SAME

#23
20230268089
2023-08-24

PASSIVE CONDENSATION TANK COOLING SYSTEM OF PASSIVE AUXILIARY FEEDWATER SYSTEM

#24
20230246534
2023-08-03

Canned rotodynamic flow machine for a molten salt nuclear reactor and an active magnetic bearing for use in a flow machine for a molten salt nuclear reactor

#25
20230223160
2023-07-13

REACTOR SECONDARY SIDE PASSIVE RESIDUAL HEAT REMOVAL SYSTEM

#26
20230142980
2023-05-11

COOLANT CLEANUP AND HEAT-SINKING SYSTEMS AND METHODS OF OPERATING THE SAME

#27
20230017037
2023-01-19

Nuclear reactor using natural and artificial circulation methods

#28
20220415529
2022-12-29

HEAT EXCHANGER AND NUCLEAR POWER PLANT HAVING THE SAME

#29
20220375634
2022-11-24

Nuclear reactor main heat and waste heat integrated thermal exchanger

#30
20220301729
2022-09-22

MOLTEN FUEL REACTOR THERMAL MANAGEMENT CONFIGURATIONS

#31
20220277862
2022-09-01

Pressurized water reactor with upper vessel section providing both pressure and flow control

#32
20220254526
2022-08-11

System for control of externally heated turbine engine

#33
20220051818
2022-02-17

Fast spectrum molten chloride test reactors

#34
20220005618
2022-01-06

Combined mounting/electrical distribution plate for powering internal control rod drive mechanism (CRDM) units of a nuclear reactor

#35
20210193340
2021-06-24

Nuclear reactor cooling system that can discharge steam into refueling water

#36
20210174976
2021-06-10

Nuclear power generator, fuel cartridges, and cooling tubes for nuclear power generator, and related methods

#37
20210142920
2021-05-13

Method of heating primary coolant outside of primary coolant loop during a reactor startup operation

#38
20210110943
2021-04-15

Alternating offset U-bend support arrangement

#39
20210098141
2021-04-01

Single-loop nuclear power plant with pressurized coolant

#40
20210090753
2021-03-25

Coolant cleanup and heat-sinking systems and methods of operating the same

#41
20200395139
2020-12-17

METHODS AND APPARATUSES FOR PUMP SEALING DURING LEAKAGE EVENTS

#42
20200392965
2020-12-17

Nuclear coolant pump seal and methods of sealing

#43
20200388411
2020-12-10

NUCLEAR STEAM SUPPLY SYSTEM

#44
20200350085
2020-11-05

Alternating offset U-bend support arrangement

#45
20200335233
2020-10-22

Apparatus for passively cooling a nuclear plant coolant reservoir

#46
20200335232
2020-10-22

Cooling water safety injection device powered by steam discharged during an accident and nuclear power plant having the same

#47
20200279660
2020-09-03

Molten fuel reactor thermal management configurations

#48
20200243208
2020-07-30

CIRCULATING-FUEL NUCLEAR REACTOR

#49
20200194136
2020-06-18

Reactor cooling device

#50
20200161009
2020-05-21

SEAL PACKAGE FACE PLATE OF A SHAFT SEALING SYSTEM OF A REACTOR COOLANT PUMP

#51
20200135349
2020-04-30

Nuclear reactor shroud

#52
20200049030
2020-02-13

AUTONOMOUS SELF-POWERED SYSTEM FOR REMOVING THERMAL ENERGY FROM POOLS OF LIQUID HEATED BY RADIOACTIVE MATERIALS, AND METHOD OF THE SAME

#53
20200027594
2020-01-23

Methods of constructing nuclear power plants with geothermal passive cooling

#54
20190341157
2019-11-07

PASSIVE MOLTEN CORE COOLING DEVICE

#55
20190164656
2019-05-30

HIGH-TEMPERATURE NUCLEAR REACTOR COOLED WITH MOLTEN FLUORIDE SALT

#56
20190066855
2019-02-28

Combined mounting/electrical distribution plate for powering internal control rod drive mechanism (CRDM) units of a nuclear reactor

#57
20180358138
2018-12-13

Nuclear reactor cooling system

#58
20180358137
2018-12-13

Flow damper, pressure-accumulation and water-injection apparatus, and nuclear installation

#59
20180358136
2018-12-13

Containment cooling system capable of improving coolant utilization rate

#60
20180358135
2018-12-13

Containment cooling apparatus

#61
20180322965
2018-11-08

Pressurized water reactor with upper vessel section providing both pressure and flow control

#62
20180298907
2018-10-18

Reactor coolant pump set

#63
20180258829
2018-09-13

Pneumatic motor assembly utilizing compressed gas to rotate a magnet assembly and having a cooling jacket surrounding the motor and the magnet assembly to circulate the compressed gas for cooling the magnet assembly, and a flow induction system using the same

#64
20180233240
2018-08-16

Nuclear power plant

#65
20180218795
2018-08-02

Flow damper, pressure-accumulation and water-injection apparatus, and nuclear installation

#66
20180182500
2018-06-28

Water injection device

#67
20180182499
2018-06-28

Core plate assembly, and a method of performing work on a core plate assembly

#68
20180144838
2018-05-24

Nuclear steam supply system

#69
20180068751
2018-03-08

Nuclear reactor shroud

#70
20180033500
2018-02-01

Modular reactor steam generator configured to cover a reactor outer wall circumference

#71
20180023423
2018-01-25

Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials, and method of the same

#72
20170330638
2017-11-16

Nuclear reactor fuel rod and fuel assembly having bundled same

#73
20170316841
2017-11-02

Molten fuel reactor cooling and pump configurations

#74
20160322121
2016-11-03

Passive residual heat removal system and atomic power plant comprising same

#75
20160273540
2016-09-22

Centrifugal cooling pump for a nuclear reactor having a thermal barrier and a vaned wheel flywheel

#76
20160260509
2016-09-08

Nuclear reactor coolant pump and nuclear power plant having same

#77
20160254066
2016-09-01

Motor-driven centrifugal pump for the primary circuit of small or medium-sized modular nuclear reactors

#78
20160230891
2016-08-11

Active surface for a packing seal intended for a shaft sealing system

#79
20160189808
2016-06-30

Automatic hydropneumatic actuation device

#80
20160180974
2016-06-23

Passive integral isolation valve

#81
20160172062
2016-06-16

Active surface for a packing seal intended for a shaft sealing system

#82
20160042817
2016-02-11

Emergency Cooling System for Improved Reliability for Light Water Reactors

#83
20160012923
2016-01-14

Nuclear reactor shroud

#84
20150310943
2015-10-29

Pressurized water reactor flow skirt apparatus

#85
20150243389
2015-08-27

Pressurized water reactor with upper vessel section providing both pressure and flow control

#86
20150200027
2015-07-16

Pressurized water reactor with upper vessel section providing both pressure and flow control

#87
20150117589
2015-04-30

Molten Salt Reactor

#88
20150085965
2015-03-26

Space saver flanged joint for a nuclear reactor vessel

#89
20140301522
2014-10-09

Controllable long term operation of a nuclear reactor

#90
20130301788
2013-11-14

Reactor coolant pump system including turbo pumps supplied by a manifold plenum chamber

#91
20130272465
2013-10-17

Power distribution plate for powering internal control rod drive mechanism (CRDM) units

#92
20130170594
2013-07-04

Methods and apparatuses for pump sealing during leakage events

#93
20130140005
2013-06-06

Condensation chamber cooling system

#94
20130121453
2013-05-16

Pressurized water reactor with upper plenum including cross-flow blocking weir

#95
20130108005
2013-05-02

Pressurized water reactor with upper vessel section providing both pressure and flow control

#96
20130028367
2013-01-31

Pressurized water reactor with reactor coolant pumps operating in the downcomer annulus

#97
20120294737
2012-11-22

Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials, and method of the same

#98
20120294405
2012-11-22

Pressurized water reactor with upper vessel section providing both pressure and flow control

#99
20120076254
2012-03-29

Compact nuclear reactor

#100
20100220829
2010-09-02

Control rod guide tube and method for providing coolant to a nuclear reactor fuel assembly

#101
20090009000
2009-01-08

Adjustable speed drive system for primary loop recirculation pump

#102
20080152068
2008-06-26

Control rod guide tube and method for providing coolant to a nuclear reactor fuel assembly

#103
20080123795
2008-05-29

Controllable long term operation of a nuclear reactor

#104
20060256912
2006-11-16

Adjustable speed drive system for primary loop recirculation pump

#105
20060120501
2006-06-08

Power source for re-circulation pump and method of controlling the same

#106
20060050834
2006-03-09

Coolant recirculation equipment for nuclear reactor

#107
18770927
2025-01-07

Guide vane body with vortex suppression structure ring and axial-flow nuclear reactor coolant pump

#108
17696491
2024-01-23

Counter gravity heat pipe techniques

#109
15921800
2022-05-24

Counter gravity heat pipe techniques