ClassID:

200338

G21C21/00 - CPC Classification

Classification description:

Apparatus or processes specially adapted to the manufacture of reactors or parts thereof

Sub-classes:
Recent Application in this class:
#1
20260155268
2026-06-04

POLYMER-BASED AQUEOUS HOMOGENEOUS REACTOR

#2
20260121503
2026-04-30

CURVILINEAR ELECTROMAGNETIC PUMP

#3
20250385017
2025-12-18

SYSTEM FOR MANUFACTURING, INSTALLING, OPERATING, AND MAINTAINING TWO OR MORE TRANSPORTABLE NUCLEAR POWER PLANTS

#4
20250292924
2025-09-18

METHOD FOR REFURBISHING A NUCLEAR POWER PLANT INITIALLY COMPRISING AT LEAST ONE LIGHT-WATER NUCLEAR REACTOR (LWR), IN PARTICULAR A PRESSURISED WATER REACTOR (PWR) OR A BOILING WATER REACTOR (BWR), WITH AT LEAST ONE INTEGRATED MODULAR NUCLEAR REACTOR (SMR)

#5
20250292922
2025-09-18

Installation of Integrated Monopile System

#6
20250182920
2025-06-05

METHOD FOR REMOVING DOUSING TANK OF HEAVY WATER REACTOR STRUCTURE

#7
20240413729
2024-12-12

METHOD OF CONSTRUCTING A NUCLEAR REACTOR HAVING REACTOR CORE AND CONTROL ELEMENTS SUPPORTED BY REACTOR VESSEL HEAD

#8
20240308136
2024-09-19

COMPOSITIONS FOR ADDITIVE MANUFACTURING AND METHODS OF ADDITIVE MANUFACTURING, PARTICULARLY OF NUCLEAR REACTOR COMPONENTS

#9
20240266080
2024-08-08

INTERLOCKING FUEL ASSEMBLY STRUCTURE FOR CORE REACTIVITY CONTROL

#10
20240257989
2024-08-01

METHOD FOR PREPARING UO2 MIXTURE POWDER FOR NUCLEAR FUEL MANUFACTURING BY MEANS OF IBC BLENDER, AND UO2 MIXTURE POWDER FOR NUCLEAR FUEL MANUFACTURING, PREPARED THEREBY

#11
20240044008
2024-02-08

Method for Coating Nuclear Power Plant Components

#12
20240013940
2024-01-11

PASSIVE HEAT REMOVAL SYSTEM FOR NUCLEAR REACTORS

#13
20240013939
2024-01-11

Modular Space Reactor Systems and Methods of Use

#14
20230136152
2023-05-04

METHOD OF REPLACING A FUNCTIONALITY OF A THERMAL SHIELD FLEXURE, A THERMAL SHIELD FLEXURE MEMBER, AND A SYSTEM INCLUDING THE SAME

#15
20230122914
2023-04-20

METHODS OF MANUFACTURING STRUCTURES FROM COATED METAL GRAIN MATERIALS, SUCH AS FOR USE IN NUCLEAR REACTOR SYSTEMS, AND RELATED STRUCTURES AND SYSTEMS

#16
20230119995
2023-04-20

Method of constructing a nuclear reactor having reactor core and control elements supported by reactor vessel head

#17
20230042159
2023-02-09

METHODS OF MANUFACTURING OF MOLYBDENUM AND MOLYBDENUM-BASED STRUCTURES BY ELECTRON BEAM ADDITIVE MANUFACTURING, PARTICULARLY STRUCTURES FOR NUCLEAR COMPONENTS

#18
20220415526
2022-12-29

END PLUG FOR SEALING COMPOSITE TUBULAR CERAMIC CLADDING OF FUEL ELEMENT OF NUCLEAR REACTOR (VARIANTS), AND METHOD FOR MANUFACTURING SAME (VARIANTS)

#19
20220406476
2022-12-22

NUCLEAR FUEL ASSEMBLY BOTTOM END PART DEBRIS FILTER AND METHOD OF MANUFACTURING SUCH A DEBRIS FILTER

#20
20220277862
2022-09-01

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

#21
20220254522
2022-08-11

Tubular component of pressurised water nuclear reactor, and method for manufacturing said component

#22
20220143716
2022-05-12

Device for holes and trepans cutting

#23
20220130558
2022-04-28

MOLTEN METAL-FILLED SILICON CARBIDE FUEL CLADDING TUBE AND UNIFORM DISTRIBUTION FABRICATION METHOD

#24
20220122746
2022-04-21

Method, device and apparatus for machining groove of poloidal segment, and computer-readable storage medium

#25
20220115154
2022-04-14

Feedwater sparger nozzle repair assembly

#26
20210398704
2021-12-23

SHIELDED TRANSPORTABLE NUCLEAR REACTOR

#27
20210391093
2021-12-16

Equipment for producing nuclear fuel powder

#28
20210280328
2021-09-09

System for sensing UF6 gas leak in nuclear fuel manufacturing process

#29
20210202119
2021-07-01

Passive containment cooling system for boiling water reactor and method of installation

#30
20210110944
2021-04-15

Modular integrated gas high temperature nuclear reactor

#31
20200373024
2020-11-26

Molten metal fuel buffer in fission reactor and method of manufacture

#32
20200353681
2020-11-12

Compositions for additive manufacturing and methods of additive manufacturing, particularly of nuclear reactor components

#33
20200111585
2020-04-09

Nuclear thermal propulsion fuel element packing device

#34
20200027587
2020-01-23

Composite moderator for nuclear reactor systems

#35
20190318836
2019-10-17

SYSTEM FOR GENERATING AND MAINTAINING A SOLID STRUCTURE

#36
20190232208
2019-08-01

Systems and methods for removing particulates of a fissile material

#37
20190226049
2019-07-25

Method of peening an obstructed region of a metal assembly

#38
20190127876
2019-05-02

Preparation method of monocrystal uranium dioxide nuclear fuel pellets

#39
20190108922
2019-04-11

REMOVABLE MANDREL FOR AUTOMATING PROCESS TO MANUFACTURE CERAMIC COMPOSITE NUCLEAR FUEL CLADDING TUBES

#40
20190080806
2019-03-14

Nuclear reactor having a layer protecting the surface of zirconium alloys

#41
20180374589
2018-12-27

A SYSTEM FOR CONTINUOUSLY PREPARING COATED PARTICLES IN A LARGE SCALE

#42
20180356021
2018-12-13

Cross-over fluid coupling

#43
20180322965
2018-11-08

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

#44
20180226160
2018-08-09

Fuel assembly, core design method and fuel assembly design method of light-water reactor

#45
20180071863
2018-03-15

Laser processing device

#46
20180047466
2018-02-15

Fuel channel for a nuclear boiling water reactor

#47
20170320162
2017-11-09

ELECTRIC MELTING METHOD FOR FORMING CYLINDER OF PRESSURE VESSEL OF NUCLEAR POWER STATION

#48
20170148534
2017-05-25

Rotary device for nuclear power facility

#49
20170140843
2017-05-18

Nuclear reactor flow path sealing systems and seals

#50
20160379724
2016-12-29

PART INCLUDING VIBRATION MITIGATION DEVICE(S), NUCLEAR REACTOR PRESSURE VESSEL ASSEMBLY INCLUDING THE PART, AND METHODS OF MANUFACTURING THEREOF

#51
20160361746
2016-12-15

Water jet peening device

#52
20160351281
2016-12-01

Neutron irradiated material repair

#53
20160232990
2016-08-11

Method for the in situ passivation of the steel surfaces of a nuclear reactor

#54
20160196889
2016-07-07

Method for reducing the radioactive contamination of the surface of a component used in a nuclear reactor

#55
20160180978
2016-06-23

Assembly with a tube locking device, and associated maintenance method

#56
20160155519
2016-06-02

Spot welding gun and welding method for the nuclear fuel skeleton

#57
20160053391
2016-02-25

Methods of fabricating metallic fuel from surplus plutonium

#58
20160035442
2016-02-04

Chemical process for primary system material passivation during hot functional testing of nuclear power plants

#59
20160005499
2016-01-07

METHODS OF COATING A NUCLEAR REACTOR COMPONENT WITH A COLLOIDAL SOLUTION

#60
20150354030
2015-12-10

Treatment process for a zirconium alloy, zirconium alloy resulting from this process and parts of nuclear reactors made of this alloy

#61
20150298235
2015-10-22

Welding method and steam generator channel head

#62
20150243389
2015-08-27

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

#63
20150146839
2015-05-28

Devices and methods for managing noncondensable gasses in nuclear power plants

#64
20150098546
2015-04-09

High temperature strength, corrosion resistant, accident tolerant nuclear fuel assembly grid

#65
20150047735
2015-02-19

Method for heat treating a metal tube or pipe, metal tube or pipe, and heat treatment furnace

#66
20150013414
2015-01-15

WJP execution method for reactor vessel lid and jigs

#67
20140241485
2014-08-28

Nanocrystalline/amorphous composite coating for protecting metal components in nuclear plants cooled with liquid metal or molten salt

#68
20140192945
2014-07-10

Fuel rod auto-loading apparatus for nuclear fuel assembly

#69
20140190945
2014-07-10

Plasma welding apparatus for guide thimble and guide thimble end plug of nuclear fuel assembly

#70
20140189995
2014-07-10

METHODS FOR INSTALLING REACTOR COOLANT LOOP PIPING IN A NUCLEAR POWER PLANT

#71
20140109406
2014-04-24

Jet pump diffuser stack repair

#72
20140093733
2014-04-03

Porous UOsintered pellet for electroreduction process, and preparation method thereof

#73
20130334182
2013-12-19

CORE SHROUD CORNER JOINTS

#74
20130301791
2013-11-14

PULSE ARC WELDING OF SPACER GRIDS TO GUIDE TUBES

#75
20130292361
2013-11-07

Device for axially holding an element of elongate shape and for setting it in rotation around its axis

#76
20130270241
2013-10-17

Installation for welding nuclear fuel assembly skeletons, and corresponding methods of programming, of skeleton welding, and of making a fuel assembly

#77
20130264726
2013-10-10

Nitride Nuclear Fuel and Method for Its Production

#78
20130240805
2013-09-19

Uranium dioxide nuclear fuel containing Mn and Al as additives and method of fabricating the same

#79
20130195236
2013-08-01

Preventive maintenance method and apparatus for a structural components in a reactor pressure vessel

#80
20130108005
2013-05-02

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

#81
20130034655
2013-02-07

Process for fabrication of a part with tubular geometry made from a ceramic matrix composite material

#82
20120285577
2012-11-15

Method for heat-treating metal tubes or pipes for nuclear power plant

#83
20120246933
2012-10-04

Top nozzle for nuclear fuel assembly having spring insert hole improved in fastening stability and method of manufacturing the same

#84
20120216382
2012-08-30

METHOD OF INSTALLING JET PUMP BEAM

#85
20120180318
2012-07-19

Nuclear power plant construction preparation unit, nuclear power plant construction system, and nuclear power plant construction method

#86
20120177165
2012-07-12

CONSTRUCTION METHOD, TUBULAR MEMBER, AND NUCLEAR POWER PLANT

#87
20120079864
2012-04-05

Pilger die and pilger mandrel for manufacturing dashpot tube for nuclear fuel assembly and method of manufacturing the pilger die and the pilger mandrel

#88
20120063560
2012-03-15

Devices and methods for managing noncombustible gasses in nuclear power plants

#89
20110268243
2011-11-03

FUEL CHANNEL ARRANGED TO BE COMPRISED BY A FUEL ELEMENT FOR A FISSION REACTOR

#90
20110182394
2011-07-28

TOP NOZZLE FOR NUCLEAR FUEL ASSEMBLY HAVING SPRING INSERT HOLE IMPROVED IN FASTENING STABILITY AND METHOD OF MANUFACTURING THE SAME

#91
20110056590
2011-03-10

Ni-Cr alloy material

#92
20110002434
2011-01-06

Nuclear fuel cladding having an exterior comprising burnable poison in contact with aqueous reactor coolant

#93
20100322370
2010-12-23

PROCESS OF MANUFACTURING ZIRCONIUM ALLOY FOR FUEL GUIDE TUBE AND MEASURING TUBE HAVING HIGH STRENGTH AND EXCELLENT CORROSION RESISTANCE

#94
20100278704
2010-11-04

Two step dry UOproduction process utilizing a positive sealing valve means between steps

#95
20100183112
2010-07-22

Method of manufacturing core shroud for nuclear power plant and structure of nuclear power plant

#96
20100150298
2010-06-17

Core shroud corner joints

#97
20100120604
2010-05-13

Method of forming a silicon carbide material, and structures including the material

#98
20100055308
2010-03-04

Method of protecting reactor components from fouling

#99
20100014625
2010-01-21

Spherical fuel element and production thereof for gas-cooled high temperature pebble bed nuclear reactors (HTR)

#100
20090323885
2009-12-31

Devices, Systems, and Methods Comprising Graphite Having an Enhanced Neutron Diffusion Coefficient for Enhancing Power Reactor Performance

#101
20090285350
2009-11-19

Multi-layer fuel channel and method of fabricating the same

#102
20090142177
2009-06-04

Device to load a sintering boat with nuclear fuel pellets and loading method using said device

#103
20090080589
2009-03-26

Core catcher, manufacturing method thereof, reactor containment vessel and manufacturing method thereof

#104
20080237032
2008-10-02

Method of applying a burnable poison onto the exterior of nuclear rod cladding

#105
20080080660
2008-04-03

Method of manufacturing a fuel cladding tube for a nuclear reactor, and a tube obtained thereby

#106
20070263760
2007-11-15

Installation for Welding Frameworks of Nuclear Fuel Assemblies, Programming Method, Corresponding Methods for Framework Welding and Assembling

#107
20070189952
2007-08-16

Precursor formulation of a silicon carbide material

#108
20070178036
2007-08-02

Method of preparing feedstock liquid, method of preparing uranyl nitrate solution, and method of preparing polyvinyl alcohol solution

#109
20070144625
2007-06-28

Method and device for measuring the power dissipated by a hydridation reaction in tubes and tubular claddings and the corresponding variation in electric resistance

#110
20070131218
2007-06-14

Method and apparatus utilizing first and second heating devices for heat treating a fuel assembly channel with induction heating

#111
20060215806
2006-09-28

Method for making a flat zirconium alloy product, resulting flat product and fuel, assembly component for nuclear power plant reactor made from said flat product

#112
20060188056
2006-08-24

Method for forming coatings on structural components with corrosion-mitigating materials

#113
20060184286
2006-08-17

Method for computer modeling the core of a nuclear reactor

#114
20060048869
2006-03-09

Non-heat treated zirconium alloy fuel cladding and a method of manufacturing the same

#115
20050153007
2005-07-14

Apparatus and method for fabricating high purity, high density metal matrix composite materials and the product thereof

#116
20050115359
2005-06-02

Method for fabricating high purity, high density metal matrix composite materials and the product thereof

#117
20050105668
2005-05-19

Control rod for boiling water reactor and method for manufacturing the same