ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,189, issued on April 14.

"Devices, systems, and methods for closure of deep geological nuclear waste disposal repository" was invented by Henry Crichlow (Norman, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Devices, systems, and methods are used to seal and close a deeply located waste repository such that waste and byproducts thereof within the deeply located waste repository are prevented from migrating upwards past a modified cap-zone over geologically relevant time. The waste repository is located within a deep geologic formation. The modified cap-zone is located above the deep geologic formation and below a terrestrial surface of the E...