ClassID:

200108

G21C3/3305 - 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; Supporting or hanging of elements in the bundle ; Means forming part of the bundle for inserting it into, or removing it from, the core; Means for coupling adjacent bundles Lower nozzle

Recent Application in this class:
#1
20260148868
2026-05-28

BOTTOM NOZZLE WITH INTERNAL DEBRIS FILTER

#2
20260011457
2026-01-08

Fuel Assembly and Method for Producing Fuel Assembly

#3
20250308715
2025-10-02

SEGMENTED FUEL ASSEMBLY FOR USE IN A NUCLEAR REACTOR

#4
20250259758
2025-08-14

IMPROVED NUCLEAR FUEL ASSEMBLY WITH ENHANCED SEISMIC PERFORMANCE AND CONTROL ROD WORTH

#5
20240096511
2024-03-21

Fuel assembly arrangement for retaining fuel rod end plug to bottom nozzle

#6
20230230713
2023-07-20

THREE DIMENSIONAL PRINTED PRECISION MAGNETS FOR FUEL ASSEMBLY

#7
20230141492
2023-05-11

Bottom nozzle with protective insert

#8
20230122593
2023-04-20

THREE DIMENSIONAL PRINTED PRECISION MAGNETS FOR FUEL ASSEMBLY

#9
20230091913
2023-03-23

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

#10
20220406476
2022-12-22

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

#11
20220344065
2022-10-27

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

#12
20220254523
2022-08-11

BOTTOM NOZZLE WITH INTERNAL DEBRIS FILTER

#13
20220215973
2022-07-07

Deforming a portion of a nut threaded on a guide tube end plug to lock the nut to a lower end fitting of a nuclear reactor fuel assembly

#14
20220215971
2022-07-07

DEBRIS FILTERING SKIRT ARRANGEMENT FOR NUCLEAR FUEL ASSEMBLY BOTTOM NOZZLE AND BOTTOM NOZZLE INCLUDING SAME

#15
20220199269
2022-06-23

LOWER END FITTING LOCATING PINS

#16
20210366623
2021-11-25

Nuclear reactor fuel assembly

#17
20210287812
2021-09-16

Methods of forming debris filters for nuclear fuel assemblies

#18
20210122653
2021-04-29

Modular water purification system for nuclear power plants

#19
20200312469
2020-10-01

Fuel assembly arrangement for retaining fuel rod end plug to bottom nozzle

#20
20200227180
2020-07-16

Bottom nozzle of nuclear fuel assembly provided with flow holes by utilizing layered aircraft airfoil structure

#21
20200135346
2020-04-30

VVER-1000 fuel assembly bottom nozzle

#22
20200043617
2020-02-06

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

#23
20200027584
2020-01-23

Fuel assembly

#24
20190326025
2019-10-24

Nuclear fuel assembly support feature

#25
20190326024
2019-10-24

Nuclear reactor fuel assembly and method for producing same

#26
20190228869
2019-07-25

Fuel assembly having concentric lower coolant inlet tubes

#27
20190198183
2019-06-27

Filter zones with different filtering efficiencies for a fuel assembly of a nuclear water reactor

#28
20190066854
2019-02-28

Debris filters for nuclear fuel assembly and method of using the same

#29
20190061121
2019-02-28

Lower end fitting locknut for nuclear fuel assembly

#30
20180330832
2018-11-15

Annular nuclear fuel pellets with central burnable absorber

#31
20180308590
2018-10-25

Fuel assembly arrangement for retaining fuel rod end plug to bottom nozzle

#32
20180268949
2018-09-20

Nuclear fuel assembly debris filtering bottom nozzle

#33
20180254112
2018-09-06

Three dimensional printed precision magnets for fuel assembly

#34
20180197640
2018-07-12

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

#35
20180182499
2018-06-28

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

#36
20180047468
2018-02-15

Nozzle seal structure

#37
20170352438
2017-12-07

Low pressure drop nuclear fuel assembly bottom nozzle

#38
20170243663
2017-08-24

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

#39
20170206985
2017-07-20

Top nozzle and pressurized water nuclear reactor including same

#40
20160358674
2016-12-08

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

#41
20160336080
2016-11-17

Bottom nozzle and light-water reactor fuel assembly

#42
20150357059
2015-12-10

Flow distribution device, lower internals of reactor and reactor

#43
20150302941
2015-10-22

Nuclear reactor fuel assembly

#44
20150098546
2015-04-09

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

#45
20140241486
2014-08-28

FUEL ASSEMBLY

#46
20140064428
2014-03-06

Lower nozzle for use in nuclear fuel assembly

#47
20130308742
2013-11-21

Fuel bundle for a liquid metal cooled nuclear reactor

#48
20130272481
2013-10-17

Lower end fitting locknut for nuclear fuel assembly

#49
20130272480
2013-10-17

Lower end fitting locating pins

#50
20130272477
2013-10-17

Pressurized Water Reactor with Skirted Lower End Fitting and Filter Plate

#51
20130163712
2013-06-27

BWR nuclear fuel assembly with snap-in sleeve spring

#52
20130077732
2013-03-28

Bundle retention clip, fuel assembly including the same, and method of assembling fuel assembly

#53
20120243652
2012-09-27

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

#54
20120207262
2012-08-16

Debris exclusion and retention device for a fuel assembly

#55
20120189090
2012-07-26

Tiered tie plates and fuel bundles using the same

#56
20120163524
2012-06-28

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

#57
20120155600
2012-06-21

Fuel bundle flow limiter

#58
20120152382
2012-06-21

Boiling water reactor fuel support casting flow limiter

#59
20120093275
2012-04-19

Tiered tie plates and fuel bundles using the same

#60
20120087455
2012-04-12

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

#61
20110311016
2011-12-22

Light-water reactor fuel assembly (alternatives), a light-water reactor, and a fuel element of fuel assembly

#62
20110280361
2011-11-17

LOWER NOZZLE FOR NUCLEAR FUEL ASSEMBLY FOR PRESSURIZED WATER REACTOR

#63
20110182396
2011-07-28

Guide thimble plug for nuclear fuel assembly

#64
20110164719
2011-07-07

NUCLEAR FUEL ASSEMBLY DEBRIS FILTER BOTTOM NOZZLE

#65
20110158373
2011-06-30

Nuclear fuel assembly bottom nozzle

#66
20100310034
2010-12-09

Nuclear fuel assembly protective bottom grid

#67
20100172460
2010-07-08

Perforated plate support for dual-cooled segmented fuel rod

#68
20100034337
2010-02-11

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

#69
20090296875
2009-12-03

Fuel supports for nuclear reactors

#70
20080152070
2008-06-26

Assembly and method for mounting a fuel assembly having a predefined orientation within a nuclear reactor

#71
20080152069
2008-06-26

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

#72
20080101528
2008-05-01

Fuel assembly for a boiling water reactor

#73
20070274431
2007-11-29

Fuel element for a boiling water reactor

#74
20070189433
2007-08-16

Method for limiting the maintenance loads applied to a fuel assembly of a nuclear reactor and fuel assembly

#75
20070183556
2007-08-09

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

#76
20070165767
2007-07-19

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

#77
20060251205
2006-11-09

In-core fuel restraint assembly