Lightbridge Corporation announced it has received a notice of allowance for a key patent from the U.S. Patent and Trademark Office related to its metallic nuclear fuel assembly design. Lightbridge’s advanced fuel technology is designed to significantly improve the economics, performance and safety of nuclear power plants. This latest patent allowance extends Lightbridge’s patent portfolio coverage in the United States to an entire metallic fuel assembly design for Western-type pressurized water reactors, which comprise two-thirds of those in operation worldwide. However, Lightbridge’s metallic fuel designs can also be adapted for use in nearly all other power reactors around the world.