| Shell and Tube Heat Exchangers | 2022 | Heat Exchanger | HOL-119 | US 11,306,972 B2 | Granted | heat-exchanger |
| Nuclear Reactor Shroud | 2022 | SMR-160 | HOL-080 | US 11,289,219 B2 | Granted | smr-160 |
| Nuclear Fuel Storage System with Integral Shimming | 2022 | Fuel Basket | HOL-132 | US 11,289,229 B2 | Granted | fuel-basket |
| Spent Nuclear Fuel Canister | 2022 | MPC | HOL-125 | US 11,289,227 B2 | Granted | mpc |
| Spent Nuclear Fuel Cask with Dose Attenuation Devices | 2022 | Fuel Basket | HOL-122 | US 11,282,615 B2 | Granted | fuel-basket |
| Manifold system for the ventilated storage of high level waste and a method of using the same to store high level waste in a below-grade environment | 2022 | HI-STORM 100M | HOL-009 | US 11,264,142 B2 | Granted | hi-storm-100m |
| Nuclear Fuel Storage Facility | 2022 | HI-STORM | HOL-018 | US 11,250,963 B2 | Granted | hi-storm |
| Manufacturing Methods to Fortify Nuclear Waste Canisters from Stress Corrosion Cracking | 2022 | MPC | HOL-113 | US 11,250,962 B2 | Granted | mpc |
| Method for Preparing Spent Nuclear Fuel for Dry Storage | 2022 | FHD | HOL-008 | US 11,217,353 B2 | Granted | fhd |
| Air-Cooled Condenser System | 2021 | Air Cooled Condenser | HOL-118 | US 11,204,201 B2 | Granted | air-cooled-condenser |
| Optimized Nuclear Fuel Core Design for a Small Modular | 2021 | SMR-160 | HOL-115 | US 11,205,521 B2 | Granted | smr-160 |
| Heat Exchanger for Severe Service Conditions | 2021 | Heat Exchanger | HOL-116 | US 11,187,471 B2 | Provisional | heat-exchanger |
| Steam Generator for Nuclear Steam Supply System | 2021 | SMR-160 | HOL-083 | US 11,120,920 B2 | Granted | smr-160 |
| A Fail-Safe Control Rod Drive System for Nuclear Reactor | 2021 | CRDS, SMR-160 | HOL-067 | US 11,094,421 B2 | Granted | crds smr-160 |
| Nuclear Waste Cask with Impact Protection | 2021 | HI-STAR 100 | HOL-131 | US 11,081,249 B2 | Granted | hi-star-100 |
| Container for Storing And/Or Transporting Spent Nuclear Fuel | 2021 | HI-STAR | HOL-108 | US 11,081,248 B2 | Granted | hi-star |
| Multi-Component Cask for Storage and Transport of Spent Nuclear Fuel | 2021 | Transfer Cask | HOL-123 | US 11,043,312 B2, US 11,043,312 B2 | Granted | transfer-cask |
| Method for Heating a Primary Coolant in a Nuclear Steam Supply System | 2021 | SMR-160 | HOL-068 | US 11,031,146 B2 | Granted | smr-160 |
| System and Method for Minimizing Movement of Nuclear Fuel Racks During a Seismic Event | 2021 | Fuel Rack | HOL-071 | US 11,017,908 B2 | Granted | fuel-rack |
| Single-Plate Neutron Absorbing Apparatus and Method of Manufacturing the Same | 2021 | DREAM | HOL-024 | US 10,991,472 B2 | Granted | dream |
| High-Density Subterranean Storage System for Nuclear Fuel and Radioactive Waste | 2021 | HI-STORM CIS | HOL-078 | US 10,950,361 B2 | Granted | hi-storm-cis |
| System for Low Profile Translation of High Level Radioactive Waste | 2021 | HI-STORM | HOL-030 | US 10,939,787 B2 | Granted | hi-storm |
| Nuclear Fuel Core, Nuclear Fuel Cartridge, and Methods of Fueling and/or Defueling a Nuclear Reactor | 2021 | SMR-160 | HOL-066 | US 10,923,239 B2 | Granted | smr-160 |
| Self-Aligning Neutron Absorbing Apparatus for Reactivity Mitigation in Nuclear Fuel Storage Systems | 2021 | Fuel Rack, Wet Storage | HOL-111 | US 10,910,119 B2 | Granted | fuel-rack wet-storage |
| System and Method of Storing and/or Transferring High Level Radioactive Waste | 2021 | HI-STORM UMAX | HOL-060 | US 10,892,063 B2 | Granted | umax |
| Flood and Wind Resistant Ventilated Module for Storing Used Fuel Canisters | 2020 | MPC | HOL-124 | US 10,878,973 B2 | Granted | mpc |
| Nuclear Waste Storage Canisters | 2020 | MPC | HOL-105 | US 10,872,707 B2 | Granted | mpc |
| Storage System for Nuclear Fuel | 2020 | Compact Fuel Dehydrator | HOL-085 | US 10,867,714 B2 | Granted | compact-fuel-dehydrator |
| Apparatus for Storing and/or Transporting Radioactive Materials | 2020 | HI-STORM | HOL-107 | US 10,861,612 B2 | Granted | hi-storm |
| Fuel Basket for Spent Nuclear Fuel and Container Implementing the Same | 2020 | MPC | HOL-100 | US 10,854,346 B2 | Granted | mpc |
| Air-Cooled Heat Exchanger and System and Method of Using the Same to Remove Waste Thermal Energy from Radioactive Materials | 2020 | Airblast HX | HOL-048 | US 10,854,344 B2 | Granted | airblast-hx |
| Macro-Chip Reinforced Alloy | 2020 | METAMIC-HT | HOL-097 | US 10,843,272 B2 | Granted | metamic-ht |
| High Earthquake-Resistant Fuel Storage Rack System for Fuel Pools in Nuclear Plants | 2020 | Fuel Rack | HOL-114 | US 10,847,274 B2 | Granted | fuel-rack |
| System and Method for Preparing a Container Loaded with Wet Radioactive Elements for Dry Storage | 2020 | FHD | HOL-002 | US 10,839,969 B2 | Granted | fhd |
| Container for Radioactive Waste | 2020 | HI-STORM | HOL-043 | US 10,811,154 B2 | Granted | hi-storm |
| Nuclear Reactor System Having Natural Circulation of Primary Coolant | 2020 | SMR-160 | HOL-041 | US 10,726,962 B2 | Granted | smr-160 |
| Passive Reactor Cooling System | 2020 | Fuel Rack | HOL-081 | US 10,720,249 B2 | Granted | fuel-rack |
| Method of Storing High Level Radioactive Waste | 2020 | HI-STORM | HOL-120 | US 10,714,223 B2 | Granted | hi-storm |
| Thermal Sleeve and Variable Vent Throttling to protect Used Fuel Bearing Canisters from Stress Corrosion Cracking in a Ventilated Storage System | 2020 | MPC | HOL-138 | 63/043,812 | Pending | mpc |
| Container and System for Handling Damaged Nuclear Fuel, and Method of Making the Same | 2020 | Damaged Fuel Canister | HOL-053 | US 10,692,617 B2 | Granted | damaged-fuel-canister |
| Atomized Pisoscale Composite Aluminum Alloy and Method Thereof | 2020 | METAMIC-HT | HOL-045 | US 10,676,805 B2 | Granted | metamic-ht |
| Component Cooling Water System for Nuclear Power Plant | 2020 | CCW, SMR-160 | HOL-070 | US 10,672,523 B2 | Granted | ccw smr-160 |
| Space Saver Flanged Joint for a Nuclear Reactor Vessel | 2020 | SMR-160 | HOL-062 | US 10,665,357 B2 | Granted | smr-160 |
| Loss-of-Coolant Accident Reactor Cooling System | 2020 | SMR-160 | HOL-082 | US 10,665,354 B2 | Granted | smr-160 |
| Rack for Underwater Storage of Spent Nuclear Fuel | 2020 | Fuel Rack | HOL-093 | US 10,650,933 B2 | Granted | fuel-rack |
| The Pressure Surge Protector for Casks Used for Sequestering Used Fuel from the Environment | 2020 | HI-STORM | HOL-137 | 63/043,812 | Pending | hi-storm |
| A Device for Cooling Fan Motors Used in Induced Draft Air Cooler Condensers | 2020 | Air Cooled Condenser | HOL-136 | 62/986,401 | Pending | air-cooled-condenser |
| Storage and Transport Cask for Nuclear Waste | 2020 | HI-STAR | HOL-135 | 62/979,640 | Pending | hi-star |
| Heavily Shielded Unventilated Cask for Storing Nuclear Waste | 2020 | MPC | HOL-134 | 62/969,183 | Pending | mpc |
| Snap-in Insert for Reactivity Control in Spent Nuclear Fuel Pools and Casks | 2020 | Vertical Air Cooled Condenser | HOL-064 | US 10,535,440 B2 | Granted | vertical-air-cooled-condenser |
| An Impact Amelioration Device to Minimize Deceleration Loads from Colliding Hard Surfaces | 2019 | Transfer Cask | HOL-133 | 62/954,083 | Pending | transfer-cask |
| Brazing Compositions and Uses Thereof | 2019 | Air Cooled Condenser | HOL-075 | US 10,512,990 B2 | Granted | air-cooled-condenser |
| Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials, and method of the same | 2019 | HI-COOL | HOL-047 | US 10,472,996 B2 | Granted | hi-cool |
| Environmentally Sequestered Spent Fuel Pool | 2019 | Spent Fuel Pool | HOL-092 | US 10,468,145 B2 | Granted | spent-fuel-pool |
| System and Method for Reclaiming Energy from Heat Emanating from Spent Nuclear Fuel | 2019 | HI-STORM UMAX | HOL-042 | US 10,418,136 B2 | Granted | umax |
| A Device for Shielding a Cask Containing Fissile Nuclear Materials | 2019 | Shield Jacket | HOL-130 | 62/890,813 | Pending | shield-jacket |
| A Portable Robotic Welder | 2019 | Portable Robotic Welder | HOL-129 | 62/887,984 | Pending | portable-robotic-welder |
| Vertical Bundle Air Cooled Heat Exchanger, Method of Manufacturing the Same, and Power Generation Plant Implementing the Same | 2019 | Air Cooled Heat Exchanger | HOL-051 | US 10,343,240 B2 | Granted | air-cooled-heat-exchanger |
| Apparatus for Storing and/or Transporting High Level Radioactive Waste, and Method for Manufacturing the Same | 2019 | HI-STORM FW | HOL-025 | US 10,332,642 B2 | Granted | hi-storm-fw |
| Air Induced-Draft Air-Cooled Condenser Amenable to Efficient On-Site Assembly | 2019 | Air Cooled Condenser | HOL-128 | | Provisional | air-cooled-condenser |
| Wet Storage Facility for Nuclear Fuel | 2019 | HI-WEST | HOL-089 | US 10,311,987 B2 | Granted | hi-west |
| Tubular Heat Exchanger Having Multiple Shell-Side and Tube-Side Fluid Passes | 2019 | Heat Exchanger | HOL-102 | US 10,295,266 B2 | Granted | heat-exchanger |
| A Method to Passively Cool a Cask Containing Heat Generating Materials During Short Term Operations | 2019 | Wet Storage | HOL-127 | 62/806,144 | Provisional | wet-storage |
| A Passive Fail-Proof Cooler for Casks Containing Fissile Materials | 2019 | Transfer Cask | HOL-126 | 62/799,868 | Provisional | transfer-cask |
| Dry Cooling System for Power Plants | 2018 | Air Blast Chiller | HOL-103 | 10,161,683 B2 | Granted | air-blast-chiller |
| Ventilated System for Storing High Level Radioactive Waste | 2018 | HI-STORM 100U | HOL-054 | US 10,147,509 B2 | Granted | hi-storm-100u |
| Shutdown System for a Nuclear Steam Supply System | 2018 | SMR-160 | HOL-073 | US 10,115,487 B2 | Granted | smr-160 |
| Apparatus for Supporting Spent Nuclear Fuel | 2018 | HDFSR | HOL-088 | US 2018/0301231 A1 | Published | hdfsr |
| Method for Storing Radioactive Waste, and System for Implementing the Same | 2018 | HI-STORM | HOL-056 | US 10,049,777 B2 | Granted | hi-storm |
| Canister Apparatus for Dry Storage of Spent Nuclear Fuel and Method of Using the Same | 2018 | DWC | HOL-013 | US 2018/0277273 A1 | Published | dwc |
| Passively-Cooled Spent Nuclear Fuel Pool System | 2018 | HI-COOL | HOL-069 | US 2018/0277264 A1 | Published | hi-cool |
| Axi-Flow Baffle for Tubular Heat Exchangers | 2018 | Heat Exchanger | HOL-121 | 62/655,858 | Provisional | heat-exchanger |
| Nuclear Power Generation System | 2018 | SMR-160 | HOL-074 | US 9,922,740 B2 | Granted | smr-160 |
| Underground System and Apparatus for Storing Spent Nuclear Fuel | 2018 | HI-STORM 100U | HOL-014 | US 9,916,911 B2 | Granted | hi-storm-100u |
| Apparatus for Supporting Radioactive Fuel Assemblies and Methods for Manufacturing the Same | 2018 | Fuel Basket | HOL-017 | US 2018/0025796 A1 | Published | fuel-basket |
| A Reactivity Control Device for Storing Nuclear Fuel | 2018 | HI-SERT | HOL-099 | US 9,875,819 B2 | Granted | hi-sert |
| Nuclear Steam Supply System | 2017 | SMR-160 | HOL-061 | US 9,852,820 B2 | Granted | smr-160 |
| A Radioactive Material Storage Canister and Method for Sealing Same | 2017 | LTS Weld | HOL-076 | US 9,779,843 B2 | Granted | lts-weld |
| Treating the External Surface of Shell-Type Stainless Steel Structures to Protect Against Stress Corrosion Cracking | 2017 | MPC | HOL-117 | 62/551,914 | Provisional | mpc |
| Cask Apparatus, System and Method for Transporting and/or Storing High Level Waste | 2017 | HI-SAFE | HOL-011 | US 9,672,948 B2 | Granted | hi-safe |
| Heat Exchanger Apparatus for Converting a Shell-Side Liquid into a Vapor | 2017 | Heat Exchange Equipment | HOL-026 | US 9,612,058 B2 | Granted | heat-exchange-equipment |
| Steam Conditioning System | 2017 | Steam Sparger Device | HOL-086 | US 9,593,598 B2 | Granted | steam-sparger-device |
| Apparatus, System and Method for Facilitating Transfer of High Level Waste to and/or From a Spent Fuel Pool | 2016 | Wet Transfer | HOL-029 | US 8,277,746 B2 | Granted | wet-transfer |
| Ventilated Transfer Cask with a High Integrity Lifting Feature and an Integral Impact Limiter | 2016 | HI-TRAC | HOL-079 | US 9,466,400 B2 | Granted | hi-trac |
| System and Method for the Ventilated Storage of High Level Radioactive Waste in a Clustered Arrangement | 2016 | HI-STORM | HOL-001 | US 9,460,821 | Granted | hi-storm |
| System and Method for Storing and Leak Testing a Radioactive Materials Storage Canister | 2016 | MPC | HOL-072 | US 9,442,037 B2 | Granted | mpc |
| Container System for Radioactive Waste | 2016 | MPC | HOL-059 | US 9,396,824 B2 | Granted | mpc |
| A Multi-Cavity Canister Transfer Facility | 2016 | CTF | HOL-106 | | Provisional | ctf |
| Apparatus, System and Method for Storing High Level Waste | 2016 | HI-STAR | HOL-007 | US 9,269,464 B2 | Granted | hi-star |
| System, Method and Apparatus for Providing Additional Radiation Shielding to High Level Radioactive Materials | 2015 | HI-SHIELD | HOL-038 | US 9,208,914 B2 | Granted | hi-shield |
| Joining Process for Neutron Absorbing Materials | 2015 | Friction Stir Welding | HOL-077 | US 2015/0336204 A1 | Published | friction-stir-welding |
| Construction-Efficient Air Cooled Heat Exchanger in Outdoors Service | 2015 | Air Cooled Heat Exchanger | HOL-104 | | Provisional | air-cooled-heat-exchanger |
| Method for Controlling Temperature of a Portion of a Radioactive Waste Storage System and for Implementing the Same | 2015 | HI-STORM | HOL-055 | US 9,105,365 B2 | Granted | hi-storm |
| Storage System for Nuclear Fuel | 2015 | Fuel Rack | HOL-057 | US 2015/0221402 A1 | Published | fuel-rack |
| Passive Reactor Containment Protection System | 2015 | SMR-160 | HOL-063 | US 9,786,393 B2 | Granted | smr-160 |
| Finned Tube Assemblies for Heat Exchangers | 2015 | Air Cooled Condenser, HI-MAX | HOL-058 | US 2015/0027697 A1 | Published | air-cooled-condenser hi-max |
| Neutron Absorbing Fuel Insert Fabrication Techniques | 2014 | HI-SERT | HOL-095 | | Provisional | hi-sert |
| System and Method for Transferring and/or Working Near a Radioactive Payload Using Shield-Gate Apparatus | 2014 | Filter Cask | HOL-050 | US 9,047,996 B2 | Granted | filter-cask |
| Method of Transferring High Level Radioactive Materials, and System for the Same | 2014 | Wet Transfer | HOL-039 | US 8,718,221 B2 | Granted | wet-transfer |
| Heat Exchanger for Accommodating Thermal and/or Pressure Transients | 2013 | Heat Exchange Equipment | HOL-015 | US 8,602,089 B2 | Granted | heat-exchange-equipment |
| Apparatus and Method for Supporting Fuel Assemblies in an Underwater Environment Having Lateral Access Loading | 2012 | Fuel Rack | HOL-004 | US 8,139,706 B2 | Granted | fuel-rack |
| Method of Removing Radioactive Materials from Submerged State and/or Preparing Spent Nuclear Fuel for Dry Storage | 2011 | HI-TRAC, Transfer Cask, Water Jacket | HOL-016 | US 8,067,659 B2 | Granted | hi-trac transfer-cask water-jacket |
| Method and Apparatus for Transporting and/or Storing Radioactive Materials having a Jacket Adapted to Facilitate Thermosiphon Fluid Flow | 2011 | HI-TRAC | HOL-022 | US 7,994,380 B2 | Granted | hi-trac |
| Heat Exchanger Apparatus | 2010 | Heat Exchange Equipment | HOL-027 | US 2010/0282451 A1 | Published | heat-exchange-equipment |
| Apparatus for Providing Additional Radiation Shielding to a Container Holding Radioactive Materials, and Method of Using the Same to Handle and/or Process Radioactive Materials | 2010 | Shielded Transfer Canister | HOL-012 | US 7,786,456 B2 | Granted | shielded-transfer-canister |
| Method and Apparatus for Maximizing Radiation Shielding During Cask Transfer Procedures | 2008 | HI-TRAC | HOL-021 | US 7,330,525 B2 | Granted | hi-trac |
| Fin Tube Assembly for Heat Exchanger and Method | 2007 | Air Cooled Condenser | HOL-032 | US 7,293,602 B2 | Granted | air-cooled-condenser |
| Forced Gas Flow Canister Dehydration | 2007 | FHD | HOL-003 | US 7,210,247 B2 | Granted | fhd |
| Below Grade Cask Transfer Facility | 2006 | CTF | HOL-031 | US 7,139,358 B2 | Granted | ctf |
| Autonomous Cask Translocation Crane | 2005 | DAVIT Crane | HOL-023 | US 6,957,942 B2 | Granted | crane |
| System and Method for Transferring Spent Nuclear Fuel from a Spent Nuclear Fuel Pool to a Storage Cask | 2005 | Mating Device | HOL-037 | US 6,853,697 B2 | Granted | mating-device |
| Seismic Cask Stabilization Device | 2005 | HERMIT | HOL-036 | US 6,848,223 B2 | Granted | hermit |
| Ventilated Vertical Overpack | 2004 | HI-STORM | HOL-020 | US 6,718,000 B2 | Granted | hi-storm |
| Deaeration of Makeup Water in a Steam Surface Condenser | 2003 | Surface Condenser | HOL-033 | US 6,619,042 B2 | Granted | surface-condenser |
| External Steam Dump | 2002 | Surface Condenser | HOL-006 | US 6,481,208 B1 | Granted | surface-condenser |
| Apparatus Suitable for Transporting and Storing Nuclear Fuel Rods and Methods for Using the Apparatus | 2000 | HI-STORM | HOL-005 | 6,064,710 | Granted | hi-storm |
| Extrusion Fabrication Process for Discontinuous Carbide Particulate Metal Matrix Composites and Super Hypereutectic A1/SI | 2000 | METAMIC-HT | HOL-052 | 6,042,779 | Granted | metamic-ht |
| Radiation Absorbing Refractory Composition | 1999 | Metamic | HOL-049 | 5,965,829 | Granted | metamic |
