ClassID:

200191

G21C9/02 - CPC Classification

Classification description:

Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency

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

NUCLEAR REACTOR PROTECTION SYSTEMS AND METHODS

#2
20260100291
2026-04-09

NUCLEAR REACTOR CORE ARCHITECTURE WITH ENHANCED HEAT TRANSFER AND SAFETY

#3
20260081044
2026-03-19

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

#4
20250308717
2025-10-02

APPARATUS FOR TESTING THERMAL-STATE CONDUCTION PERFORMANCE OF ELECTRICAL PENETRATION PIECE OF HIGH-TEMPERATURE GAS-COOLED REACTOR

#5
20250292918
2025-09-18

MICRO NUCLEAR REACTOR

#6
20240404716
2024-12-05

CONTROLLING A POWER OUTPUT OF A NUCLEAR REACTION USING CHEMICAL INJECTION

#7
20240355488
2024-10-24

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

#8
20240266082
2024-08-08

NUCLEAR REACTOR COOLING MODULE, POWER GENERATION SYSTEM USING NUCLEAR REACTOR INCLUDING SAME, NUCLEAR REACTOR COOLING METHOD, AND NUCLEAR REACTOR DESIGN METHOD

#9
20240112824
2024-04-04

SYSTEMS AND METHODS FOR CONTINUALLY MONITORING THE CONDITION OF NUCLEAR REACTOR INTERNALS

#10
20240087761
2024-03-14

NUCLEAR REACTOR PROTECTION SYSTEMS AND METHODS

#11
20240062923
2024-02-22

GAS MANAGEMENT SYSTEMS FOR A MOLTEN SALT NUCLEAR REACTOR

#12
20230268088
2023-08-24

NUCLEAR REACTOR AND METHOD OF OPENING A NUCLEAR REACTOR

#13
20230120623
2023-04-20

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

#14
20220367073
2022-11-17

Controlling a power output of a nuclear reaction using chemical injection

#15
20220328202
2022-10-13

AUTOMATIC SHUTDOWN CONTROLLER FOR NUCLEAR REACTOR SYSTEM WITH CONTROL DRUMS

#16
20220301732
2022-09-22

NUCLEAR REACTOR CORE ARCHITECTURE WITH ENHANCED HEAT TRANSFER AND SAFETY

#17
20220270772
2022-08-25

System for continually monitoring the condition of nuclear reactor internals

#18
20220246317
2022-08-04

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

#19
20210398695
2021-12-23

Control rod damping system

#20
20210287813
2021-09-16

Nuclear reactor protection systems and methods

#21
20210225533
2021-07-22

Methods of moving an induction coil to move a control element in a nuclear reactor

#22
20210202114
2021-07-01

Dry stand-by liquid control system for a nuclear reactor

#23
20200395134
2020-12-17

Rotational apparatus usable with control drum apparatus in nuclear environment

#24
20200388407
2020-12-10

Magnetically-actuated isolated rod couplings for use in a nuclear reactor control rod drive

#25
20200365285
2020-11-19

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

#26
20200357530
2020-11-12

Control rod drive mechanism with separate latch and drive coils

#27
20200203032
2020-06-25

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

#28
20200152341
2020-05-14

Fail-safe control rod drive system for nuclear reactor

#29
20200135354
2020-04-30

Passive electrical component for safety system shutdown using Gauss' law of magnetism

#30
20200135353
2020-04-30

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

#31
20200043617
2020-02-06

Method of installing an external dashpot tube around a control rod guide tube in a nuclear fuel assembly

#32
20200027604
2020-01-23

Controlling a power output of a nuclear reaction without control rods

#33
20200027603
2020-01-23

Controlling a power output of a nuclear reaction without control rods

#34
20200027592
2020-01-23

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

#35
20200027589
2020-01-23

Fail-safe control rod drive system for nuclear reactor

#36
20190318836
2019-10-17

SYSTEM FOR GENERATING AND MAINTAINING A SOLID STRUCTURE

#37
20190221352
2019-07-18

Electromagnetic coil assembly for control rod driving mechanism and method of manufacturing the same

#38
20190172594
2019-06-06

Rotational apparatus usable with control drum apparatus in nuclear environment

#39
20180358133
2018-12-13

Movable standby hydraulic control unit that is usable during a control rod drive system inspection to temporarily replace any one of several hydraulic control units

#40
20180350475
2018-12-06

Apparatus and method of evaluating response time of nuclear plant protection system

#41
20180277262
2018-09-27

Secondary shutdown structure of nuclear reactor by using sliding doors

#42
20180226161
2018-08-09

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

#43
20180197642
2018-07-12

Baffle structure for channel

#44
20180197640
2018-07-12

Fuel assembly with an external dashpot disposed around a guide tube portion

#45
20180190395
2018-07-05

Nuclear reactor protection systems and methods

#46
20180190393
2018-07-05

Control rod damping system

#47
20180190392
2018-07-05

Control rod drive mechanism (CRDM) with remote disconnect mechanism

#48
20180122524
2018-05-03

Digital protection system for nuclear power plant

#49
20180075931
2018-03-15

Heat pipe molten salt fast reactor with stagnant liquid core

#50
20170162279
2017-06-08

Nuclear reactor scram control system

#51
20170040070
2017-02-09

Fail-safe control rod drive system for nuclear reactor

#52
20160358676
2016-12-08

Hydraulic control unit and method of shutting down a nuclear reactor using the same

#53
20160232994
2016-08-11

Method for guaranteeing fast reactor core subcriticality under conditions of uncertainty regarding the neutron-physical characteristics thereof

#54
20160042815
2016-02-11

Actuating a nuclear reactor safety device

#55
20150325318
2015-11-12

Fail-safe control rod drive system for nuclear reactor

#56
20150187446
2015-07-02

Managing nuclear reactor control rods

#57
20140334586
2014-11-13

CRDM designs with separate SCRAM latch engagement and locking

#58
20140301520
2014-10-09

CRDM with separate scram latch engagement and locking

#59
20140270036
2014-09-18

CRDM with separate SCRAM latch engagement and locking

#60
20130114779
2013-05-09

APPARATUS FOR CHARGING EMERGENCY BATTERY USING THERMOELECTRIC GENERATION DEVICE IN NUCLEAR POWER PLANT

#61
20120263266
2012-10-18

Method and device for detecting the drop of a cluster in a nuclear reactor

#62
20120155596
2012-06-21

Nuclear control rod position indication system

#63
20120148005
2012-06-14

Reactor shutdown system

#64
20120051482
2012-03-01

Terminal elements for coupling connecting rods and control rods in control rod assemblies for a nuclear reactor

#65
20100316177
2010-12-16

Control rod drive mechanism for nuclear reactor

#66
17356844
2021-11-02

Control rod drive mechanism and reactor control system