ClassID:

200098

G21C3/322 - CPC Classification

Classification description:

Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements; Assemblies of a number of fuel elements in the form of a rigid unit; Bundles of parallel pin-, rod-, or tube-shaped fuel elements Means to influence the coolant flow through or around the bundles

Sub-classes:
Recent Application in this class:
#1
20260120896
2026-04-30

INSERTS AND METHODS FOR CONTROLLING FUEL ASSEMBLY COOLANT FLOW RATES

#2
20250046480
2025-02-06

Nuclear Fuel Assembly Retrofit for Increasing Reactor Power

#3
20240371534
2024-11-07

NUCLEAR REACTOR FUEL ASSEMBLIES AND PROCESS FOR PRODUCTION

#4
20240331886
2024-10-03

TRANSPORTABLE SUB-CRITICAL MODULES DISPOSED IN INTERMODAL TRANSPORT CONTAINER FOR POWER GENERATION

#5
20240309665
2024-09-19

MODULAR MANUFACTURE, DELIVERY, AND ASSEMBLY OF NUCLEAR REACTOR BUILDING SYSTEMS

#6
20240055144
2024-02-15

FUEL ASSEMBLY

#7
20230343475
2023-10-26

CHANNEL BOXES FOR A BOILING WATER REACTOR AND METHODS OF MANUFACTURE THEREOF

#8
20230335305
2023-10-19

Fuel assembly

#9
20230326618
2023-10-12

CARBIDE-BASED FUEL ASSEMBLY FOR THERMAL PROPULSION APPLICATIONS

#10
20230323695
2023-10-12

NUCLEAR FUEL ASSEMBLY WITH MULTI-PITCH WIRE WRAP

#11
20230317305
2023-10-05

Carbide-based fuel assembly for thermal propulsion applications

#12
20230282379
2023-09-07

METHOD OF MANUFACTURING A NUCLEAR FUEL ASSEMBLY

#13
20230282374
2023-09-07

FUEL BUNDLE WITH TWISTED RIBBON FUEL RODLETS FOR NUCLEAR THERMAL PROPULSION APPLICATIONS, STRUCTURES FOR MANUFACTURE, AND METHODS OF MANUFACTURE

#14
20230282373
2023-09-07

FUEL BUNDLE WITH TWISTED RIBBON FUEL RODLETS FOR NUCLEAR THERMAL PROPULSION APPLICATIONS, STRUCTURES FOR MANUFACTURE, AND METHODS OF MANUFACTURE

#15
20230162875
2023-05-25

CONTROL ROD DAMPING SYSTEM

#16
20230141492
2023-05-11

Bottom nozzle with protective insert

#17
20230091913
2023-03-23

BWR nuclear fuel assembly comprising an interaction device between a lower tie plate and a fuel channel

#18
20220367070
2022-11-17

STANDING WAVE NUCLEAR FISSION REACTOR AND METHODS

#19
20220301732
2022-09-22

NUCLEAR REACTOR CORE ARCHITECTURE WITH ENHANCED HEAT TRANSFER AND SAFETY

#20
20220301730
2022-09-22

Channel box and fuel assembly

#21
20220139575
2022-05-05

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

#22
20220115156
2022-04-14

Transportable sub-critical modules disposed in intermodal transport container for power generation

#23
20220115152
2022-04-14

Carbide-based fuel assembly for thermal propulsion applications

#24
20220115149
2022-04-14

Carbide-based fuel assembly for thermal propulsion applications

#25
20220084695
2022-03-17

Nuclear fuel assembly for a boiling water reactor with redundant load chain

#26
20220051812
2022-02-17

Nuclear fuel assembly with multi-pitch wire wrap

#27
20220051811
2022-02-17

MODULAR MANUFACTURE, DELIVERY, AND ASSEMBLY OF NUCLEAR REACTOR CORE SYSTEMS

#28
20220049516
2022-02-17

Modular manufacture, delivery, and assembly of nuclear reactor building systems

#29
20210398701
2021-12-23

Method of manufacturing a nuclear fuel assembly

#30
20210398700
2021-12-23

FUEL ASSEMBLY

#31
20210398695
2021-12-23

Control rod damping system

#32
20210375495
2021-12-02

Nuclear reactor fuel assemblies and process for production

#33
20210110941
2021-04-15

Spacer Grid Of Nuclear Fuel Assembly Having Simple Shape Structure

#34
20210098140
2021-04-01

Spacer grid using tubular cells

#35
20210027900
2021-01-28

Reactor core having both nuclear fuel and a heat pipe in a module located in a solid neutron moderator

#36
20200373027
2020-11-26

Small modular mobile fission reactor

#37
20200365283
2020-11-19

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

#38
20200043617
2020-02-06

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

#39
20200027583
2020-01-23

ANNULAR METAL NUCLEAR FUEL AND METHODS OF MANUFACTURING THE SAME

#40
20200027576
2020-01-23

Fuel assembly

#41
20190228869
2019-07-25

Fuel assembly having concentric lower coolant inlet tubes

#42
20190139653
2019-05-09

Fuel assembly

#43
20190051421
2019-02-14

MOX fuel assembly

#44
20190019585
2019-01-17

Mitigation assembly for nuclear reactor comprising a removable sealing plug

#45
20180356021
2018-12-13

Cross-over fluid coupling

#46
20180350474
2018-12-06

RECTANGULAR NUCLEAR REACTOR CORE

#47
20180301230
2018-10-18

Fuel channel assembly and fuel bundle for a nuclear reactor

#48
20180254112
2018-09-06

Three dimensional printed precision magnets for fuel assembly

#49
20180254111
2018-09-06

Method of manufacturing a nuclear fuel assembly

#50
20180218795
2018-08-02

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

#51
20180197640
2018-07-12

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

#52
20180190393
2018-07-05

Control rod damping system

#53
20180182499
2018-06-28

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

#54
20180096744
2018-04-05

Fuel assembly for a nuclear boiling water reactor

#55
20180090237
2018-03-29

Transportable sub-critical modules for nuclear power generation

#56
20180047466
2018-02-15

Fuel channel for a nuclear boiling water reactor

#57
20180033501
2018-02-01

Nuclear reactor and a method of heat transfer from a core

#58
20170352438
2017-12-07

Low pressure drop nuclear fuel assembly bottom nozzle

#59
20170330638
2017-11-16

Nuclear reactor fuel rod and fuel assembly having bundled same

#60
20170330637
2017-11-16

Fuel assembly for a nuclear boiling water reactor

#61
20170309352
2017-10-26

FUEL ASSEMBLY FOR BOILING WATER REACTOR

#62
20170301420
2017-10-19

Nuclear fission reactor, flow control assembly, methods therefor and a flow control assembly system

#63
20170301412
2017-10-19

Standing wave nuclear fission reactor and methods

#64
20170249999
2017-08-31

Passive inherent reactivity coefficient control in nuclear reactors

#65
20170243663
2017-08-24

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

#66
20170243662
2017-08-24

Modular nuclear fission waste conversion reactor

#67
20170229195
2017-08-10

Channel box

#68
20160379722
2016-12-29

SYSTEMS AND METHODS FOR INCREASED STABILITY NUCLEAR FUEL CASTINGS

#69
20160358675
2016-12-08

NUCLEAR CORE COMPONENT HOLD-DOWN ASSEMBLY AND NUCLEAR REACTOR FUEL ASSEMBLY

#70
20160358674
2016-12-08

Floating filter screen in a lower tie plate box of a nuclear fuel assembly

#71
20160203879
2016-07-14

Optimized fuel assembly channels and methods of creating the same

#72
20160163402
2016-06-09

Nuclear fuel assembly support grid

#73
20160093407
2016-03-31

Pressurized water reactor fuel assembly

#74
20160055923
2016-02-25

Fuel channel for a nuclear power boiling water reactor

#75
20160035441
2016-02-04

Fuel assembly

#76
20150357059
2015-12-10

Flow distribution device, lower internals of reactor and reactor

#77
20150310941
2015-10-29

Nuclear fuel assembly having varying spacing between fuel rods

#78
20150287481
2015-10-08

Fuel rod support insert for a nuclear fuel assembly spacer grid, spacer grid and nuclear fuel assembly

#79
20150155060
2015-06-04

PRESSURE-TUBE NUCLEAR REACTOR WITH A LOW PRESSURE MODERATOR AND FUEL CHANNEL ASSEMBLY

#80
20150155059
2015-06-04

PRESSURE-TUBE NUCLEAR REACTOR WITH A LOW PRESSURE MODERATOR AND FUEL CHANNEL ASSEMBLY

#81
20140334595
2014-11-13

Fuel assembly

#82
20140270047
2014-09-18

Rib-type roughness design for improved heat transfer in PWR rod bundles

#83
20140270045
2014-09-18

Nuclear reactor cores comprising a plurality of fuel elements, and fuel elements for use therein

#84
20140185735
2014-07-03

Fuel assembly

#85
20140086377
2014-03-27

Nuclear fuel assembly tie plate, upper nozzle and nuclear fuel assembly comprising such a tie plate

#86
20140072091
2014-03-13

Strip for a nuclear fuel assembly spacer grid

#87
20140064428
2014-03-06

Lower nozzle for use in nuclear fuel assembly

#88
20140056398
2014-02-27

Strip for a nuclear fuel assembly spacer grid

#89
20140056397
2014-02-27

Debris filter for nuclear reactor installation and nuclear fuel assembly comprising such a debris filter

#90
20140037041
2014-02-06

Spacer grid for nuclear fuel assembly for reducing high frequency vibration

#91
20140037040
2014-02-06

Spacer grid for nuclear fuel assembly for reducing flow-induced vibration

#92
20140016735
2014-01-16

Spacer and a fuel unit for a nuclear plant

#93
20130322591
2013-12-05

Fuel assembly

#94
20130308742
2013-11-21

Fuel bundle for a liquid metal cooled nuclear reactor

#95
20130272477
2013-10-17

Pressurized Water Reactor with Skirted Lower End Fitting and Filter Plate

#96
20130259188
2013-10-03

Reverse conical lower end plug for an annular nuclear fuel rod

#97
20130251088
2013-09-26

Spacers with deflection-limited peripheral springs for nuclear fuel assemblies and methods of making the same

#98
20120243652
2012-09-27

BWR nuclear fuel assembly with non-retained partial length fuel rods

#99
20120201342
2012-08-09

NUCLEAR FUEL ASSEMBLY AND NUCLEAR REACTOR COMPRISING AT LEAST ONE SUCH ASSEMBLY

#100
20120189090
2012-07-26

Tiered tie plates and fuel bundles using the same

#101
20120163526
2012-06-28

OPTIMIZED FUEL SUPPORTS AND METHODS OF CREATING REACTOR CORES WITH THE SAME

#102
20120163524
2012-06-28

Tie plate with variable orifice and methods for selective control of fuel assembly coolant flow

#103
20120155601
2012-06-21

Flow tripping device

#104
20120155600
2012-06-21

Fuel bundle flow limiter

#105
20120152382
2012-06-21

Boiling water reactor fuel support casting flow limiter

#106
20120093275
2012-04-19

Tiered tie plates and fuel bundles using the same

#107
20120084970
2012-04-12

Electromagnet flow regulator, system, and methods for regulating flow of an electrically conductive fluid

#108
20120063562
2012-03-15

Dual-cooled fuel rod's spacer grids with upper and lower cross-wavy-shape dimple

#109
20120020447
2012-01-26

Optimized fuel assembly channels and methods of creating the same

#110
20120014494
2012-01-19

PRESSURE-LOSS ADJUSTING MEMBER REACTOR

#111
20110317799
2011-12-29

PRESSURE-LOSS ADJUSTING MEMBER AND REACTOR

#112
20110305311
2011-12-15

FUEL ELEMENT FOR A PRESSURIZED-WATER NUCLEAR REACTOR

#113
20110261921
2011-10-27

Fuel assembly

#114
20110164714
2011-07-07

Standing wave nuclear fission reactor and methods

#115
20110164713
2011-07-07

Standing wave nuclear fission reactor and methods

#116
20110164712
2011-07-07

Standing wave nuclear fission reactor and methods

#117
20110158373
2011-06-30

Nuclear fuel assembly bottom nozzle

#118
20110110485
2011-05-12

Fuel assembly

#119
20110110484
2011-05-12

Standing wave nuclear fission reactor and methods

#120
20110080988
2011-04-07

Fuel bundle designs using mixed spacer types

#121
20110033020
2011-02-10

Helically fluted tubular fuel rod support

#122
20110002436
2011-01-06

Nuclear fuel assembly support grid

#123
20110002435
2011-01-06

NUCLEAR FUEL ASSEMBLY SUPPORT GRID

#124
20100310034
2010-12-09

Nuclear fuel assembly protective bottom grid

#125
20100266088
2010-10-21

Nuclear fission reactor, flow control assembly, methods therefor and a flow control assembly system

#126
20100266087
2010-10-21

Nuclear fission reactor, flow control assembly, methods therefor and a flow control assembly system

#127
20100266086
2010-10-21

Nuclear fission reactor, flow control assembly, methods therefor and a flow control assembly system

#128
20100266085
2010-10-21

Nuclear fission reactor, flow control assembly, methods therefor and a flow control assembly system

#129
20100172460
2010-07-08

Perforated plate support for dual-cooled segmented fuel rod

#130
20100150298
2010-06-17

Core shroud corner joints

#131
20100128835
2010-05-27

Intermediate end plug assembly for segmented fuel rod and segmented fuel rod having the same

#132
20100128833
2010-05-27

Reactor core

#133
20100091929
2010-04-15

Structure for suppressing flow vibration of instrumentation guide tube

#134
20100034337
2010-02-11

Bottom end-piece having an anti-debris device with a baffle for a nuclear assembly and corresponding assembly

#135
20100027734
2010-02-04

Spacer grid for dual-cooling nuclear fuel rods using intersectional support structures

#136
20090296875
2009-12-03

Fuel supports for nuclear reactors

#137
20090285347
2009-11-19

Fuel assembly for PWR nuclear reactor

#138
20090135989
2009-05-28

Segmented fuel rod bundle designs using fixed spacer plates

#139
20090122945
2009-05-14

Fuel assembly for a pressurized-water nuclear reactor

#140
20090067566
2009-03-12

Fuel assembly and plug-in distance element

#141
20090060117
2009-03-05

Guide thimble of dual tube type structure nuclear fuel assembly

#142
20090052607
2009-02-26

Spacer grid for close-spaced nuclear fuel rods

#143
20090041174
2009-02-12

Reactor Core

#144
20090034676
2009-02-05

WATER ROD FOR BOILING WATER NUCLEAR REACTOR FUEL ASSEMBLY AND METHOD FOR IMPROVING WATER FLOW THROUGH THE ASSEMBLY

#145
20080267340
2008-10-30

Fuel bundle and spacer band

#146
20080232537
2008-09-25

NUCLEAR FUEL ASSEMBLY WITH AN ADVANCED SPACER GRID

#147
20080232536
2008-09-25

Spacer and a Fuel Unit for a Nuclear Plant

#148
20080205579
2008-08-28

Distance lattice for fuel rod assembly in nuclear reactor

#149
20080159466
2008-07-03

Fuel assembly for a pressurized water reactor

#150
20080152069
2008-06-26

Fuel support and method for modifying coolant flow in a nuclear reactor

#151
20080095296
2008-04-24

Expanded nuclear fuel channel

#152
20070291893
2007-12-20

Nuclear fuel spacer assembly with debris guide

#153
20070274431
2007-11-29

Fuel element for a boiling water reactor

#154
20070211843
2007-09-13

Spacer grid with mixing vanes and nuclear fuel assembly employing the same

#155
20070206717
2007-09-06

Multiple and variably-spaced intermediate flow mixing vane grids for fuel assembly

#156
20070183556
2007-08-09

Terminal end-piece for a fuel assembly having an arrangement for maintaining the ends of the rods and corresponding assembly

#157
20070165767
2007-07-19

Terminal end-piece for a fuel assembly having a nose for orienting the flow of coolant fluid and corresponding assembly

#158
20060285628
2006-12-21

Fuel assembly for a pressurized-water nuclear reactor, and a core of a pressurized-water nuclear reactor which is composed of fuel assemblies of this type

#159
20060227925
2006-10-12

Four point contact structural spacer grid

#160
20060227923
2006-10-12

Nuclear fuel assembly low pressure drop top nozzle

#161
20060222140
2006-10-05

Eccentric support grid for nuclear fuel assembly

#162
20060193427
2006-08-31

Fuel assembly for a pressurized water nuclear reactor

#163
20060056574
2006-03-16

Spacer

#164
20050226358
2005-10-13

Spacer grid for a fuel unit in a nuclear reactor cooled by light water

#165
20050220261
2005-10-06

Fuel assembly for a boiling water reactor

#166
20050157837
2005-07-21

Distributed clumping of part-length rods for a reactor fuel bundle

#167
20050105677
2005-05-19

Spacer grid for nuclear reactor fuel assemblies

#168
20050105676
2005-05-19

Fuel assembly for a boiling water reactor