ClassID:

200235

G21C15/02 - CPC Classification

Classification description:

Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices

Sub-classes:
Recent Application in this class:
#1
20260148871
2026-05-28

HEAT EXCHANGERS

#2
20260148870
2026-05-28

HEAT EXCHANGERS

#3
20260112511
2026-04-23

NUCLEAR REACTOR AND METHOD OF AUTONOMOUS CONTROL OF SUCH NUCLEAR REACTOR

#4
20260058029
2026-02-26

Nuclear-energy storage integrated lead-based reactor with autonomous load-following function

#5
20250259757
2025-08-14

DRILLHOLE NUCLEAR REACTOR

#6
20250149194
2025-05-08

NUCLEAR REACTOR SHIELDING FACILITY, NUCLEAR FACILITY, AND NUCLEAR REACTOR SHIELDING FACILITY CONSTRUCTION METHOD

#7
20240420855
2024-12-19

NUCLEAR REACTOR FOR HEAT AND POWER GENERATION

#8
20240355491
2024-10-24

NUCLEAR REACTOR FOR HEAT AND POWER GENERATION

#9
20240239520
2024-07-18

NUCLEAR-BASED HEAT AND POWER FOR LOW-EARTH ORBIT (LEO) AND DEEP SPACE MISSIONS

#10
20240194361
2024-06-13

SYSTEMS AND METHODS OF THERMOELECTRIC COOLING IN POWER PLANTS

#11
20240153653
2024-05-09

NUCLEAR REACTOR WITH A LIQUID METAL COOLANT

#12
20230290529
2023-09-14

SYSTEM FOR UTILIZING UNUSED HEAT-EXCHANGE WATER OF PASSIVE AUXILIARY FEEDWATER SYSTEM, AND REACTOR COOLING CONTROL METHOD UTILIZING UNUSED HEAT-EXCHANGE WATER OF PASSIVE AUXILIARY FEEDWATER SYSTEM

#13
20230282376
2023-09-07

System that moves liquid fuel into and out of a nuclear reactor core to control reactivity

#14
20230110039
2023-04-13

NUCLEAR REACTOR AND CONTROL METHOD FOR NUCLEAR REACTOR

#15
20230017037
2023-01-19

Nuclear reactor using natural and artificial circulation methods

#16
20220392657
2022-12-08

Energy production devices and associated components, and related heat transfer devices and methods

#17
20220301729
2022-09-22

MOLTEN FUEL REACTOR THERMAL MANAGEMENT CONFIGURATIONS

#18
20220139575
2022-05-05

Fuel assembly with outer channel including reinforced sidewall and non-reinforced sidewall

#19
20220051816
2022-02-17

HEAT EXCHANGER CONFIGURATION FOR NUCLEAR REACTOR

#20
20210375497
2021-12-02

Prevention device for LOCA and nuclear reactor having the same

#21
20210319921
2021-10-14

Methods for airflow control in reactor passive decay heat removal using a damper

#22
20210272707
2021-09-02

Molten fuel reactors and orifice ring plates for molten fuel reactors

#23
20210210224
2021-07-08

Molten fuel nuclear reactor

#24
20210210218
2021-07-08

Jet impingement cooling apparatus and method

#25
20210082589
2021-03-18

Reactor condition controlled check valve permits coolant to flow from a reservoir to an isolation condenser chamber

#26
20200365283
2020-11-19

Method of configuring sidewalls of an outer channel of a fuel assembly

#27
20200279660
2020-09-03

Molten fuel reactor thermal management configurations

#28
20200194136
2020-06-18

Reactor cooling device

#29
20200185117
2020-06-11

Modular fluid flow distribution system in which differently shaped plates can be rearranged to different positions

#30
20200075183
2020-03-05

Cooling apparatus for molten core material

#31
20190172597
2019-06-06

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

#32
20190164654
2019-05-30

NUCLEAR POWER PLANTS

#33
20190156961
2019-05-23

Nuclear reactor provided with a raised heat exchanger

#34
20190115114
2019-04-18

Systems and methods for airflow control in reactor passive decay heat removal

#35
20190078815
2019-03-14

Heat transport apparatus

#36
20190006052
2019-01-03

Isolation condenser systems for nuclear reactor commercial electricity generation

#37
20180356021
2018-12-13

Cross-over fluid coupling

#38
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

#39
20180233240
2018-08-16

Nuclear power plant

#40
20180226161
2018-08-09

Nuclear reactor with screw-nut drive of core reactivity control members

#41
20180218795
2018-08-02

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

#42
20180068750
2018-03-08

Molten fuel nuclear reactor with neutron reflecting coolant

#43
20180019027
2018-01-18

Moveable isolated rod couplings for use in a nuclear reactor control rod drive

#44
20180019026
2018-01-18

Stationary isolated rod couplings for use in a nuclear reactor control rod drive

#45
20170352443
2017-12-07

UPGRADING POWER OUTPUT OF PREVIOUSLY-DEPLOYED NUCLEAR POWER PLANTS

#46
20170352441
2017-12-07

Instrumentation conduit housing

#47
20170316841
2017-11-02

Molten fuel reactor cooling and pump configurations

#48
20170316840
2017-11-02

MOLTEN FUEL REACTOR THERMAL MANAGEMENT CONFIGURATIONS

#49
20170316839
2017-11-02

Pressure-tube reactor with pressurized moderator

#50
20170309354
2017-10-26

Heat exchanger and nuclear power plant comprising same

#51
20170301421
2017-10-19

Molten fuel nuclear reactor with neutron reflecting coolant

#52
20170243663
2017-08-24

Lower end fixing body for improving flow path resistance of in-core detector

#53
20170213606
2017-07-27

Riser cone apparatus to provide compliance between reactor components and minimize reactor coolant bypass flow

#54
20170162280
2017-06-08

Piping enhancement for backflow prevention in a multiple loop, metal cooled nuclear reactor system

#55
20170117062
2017-04-27

Method and device for control of oxygen concentration in a nuclear reactor plant

#56
20170092382
2017-03-30

Modular fluid flow distribution system in which differently shaped plates can be rearranged to different positions

#57
20160336082
2016-11-17

Reactor system with a lead-cooled fast reactor

#58
20160307653
2016-10-20

Fuel channel annulus spacer

#59
20160217875
2016-07-28

Containment vessel drain system

#60
20160203879
2016-07-14

Optimized fuel assembly channels and methods of creating the same

#61
20160010749
2016-01-14

Leakage prevention seal, and pump for nuclear reactor cooling material

#62
20150310943
2015-10-29

Pressurized water reactor flow skirt apparatus

#63
20150287482
2015-10-08

BWR feedwater sparger end bracket pin clamp

#64
20150213908
2015-07-30

Fuel channel annulus spacer

#65
20150200023
2015-07-16

Nuclear reactor chimney and method of improving core inlet enthalpy using the same

#66
20150194227
2015-07-09

Austenitic alloy tube

#67
20150092905
2015-04-02

Feed water distributing system for a nuclear power plant, and method for operating a nuclear power plant

#68
20140348287
2014-11-27

Dual fluid reactor

#69
20140037038
2014-02-06

PRESSURIZED WATER REACTOR

#70
20130343505
2013-12-26

Pressurized water reactor

#71
20130235968
2013-09-12

Reactor vessel coolant deflector shield

#72
20130121452
2013-05-16

Pressure-tube reactor with pressurized moderator

#73
20130089174
2013-04-11

Pressure-tube reactor with coolant plenum

#74
20130044853
2013-02-21

FEED WATER AND STEAM HEADER AND NUCLEAR REACTOR HAVING THE SAME

#75
20120099694
2012-04-26

Fast reactor

#76
20120051481
2012-03-01

Two-fluid molten-salt reactor

#77
20120020447
2012-01-26

Optimized fuel assembly channels and methods of creating the same

#78
20110314664
2011-12-29

Pressure-loss adjusting-member installation tool

#79
20110311015
2011-12-22

FUEL CHANNEL ANNULUS SPACER

#80
20100329409
2010-12-30

Drain sump of nuclear reactor containment vessel

#81
20100172459
2010-07-08

FAST REACTOR

#82
20100128833
2010-05-27

Reactor core

#83
20090252277
2009-10-08

Upper Plenum Structure of Cooled Pressure Vessel for Prismatic Very High Temperature Reactor

#84
20090116608
2009-05-07

Natural circulation type boiling water reactor

#85
20090041174
2009-02-12

Reactor Core

#86
20060062345
2006-03-23

Method and device to stabilize boiling water reactors against regional mode oscillations

#87
20060050835
2006-03-09

Bi-disperse pebble-bed nuclear reactor

#88
20060050834
2006-03-09

Coolant recirculation equipment for nuclear reactor

#89
17696491
2024-01-23

Counter gravity heat pipe techniques

#90
17176752
2024-12-24

Moderated nuclear reactor

#91
15921800
2022-05-24

Counter gravity heat pipe techniques

#92
12393577
2014-06-03

Reactor vessel coolant deflector shield