ALEXANDRIA, Va., July 28 -- United States Patent no. 12,694,999, issued on July 28, was assigned to AVANTech LLC (Columbia, S.C.).

"Methods and devices for radioactive waste solidification" was invented by James L. Braun (Blythewood, S.C.) and Tracy A. Barker (Columbia, S.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for the solidification and packaging of waste is provided. The method includes providing a container and solidification materials, mixing the solidification materials, and inserting the solidification materials into the container at a first site location. The method also includes transporting the container having the solidification materials to a second site location, providing wast...