ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,986, issued on Sept. 8, was assigned to Board of Supervisors of Lousiana of Lousiana State University and Agricultural and Mechanical College (Baton Rouge, La.), Louisiana Tech Research Corp. (Ruston, La.) and Refined Imaging LLC (Baton Rouge, La.).

"Counterfeit detection and provenance with grating interferometry, blockchain, and smart contracts" was invented by Leslie G. Butler (Baton Rouge, La.), Michele L. Maasberg (Baton Rouge, La.), Charles Hartman (Baton Rouge, La.) and Ian Taylor (Baton Rouge, La.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for differentiating between authentic and counterfeit item, and legacy addit...