ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,400, issued on July 15, was assigned to Essilor International (Charenton-le-Pont, France) and UNIVERSITE DE MONTREAL (Montreal).

"Method for determining a progressive lens and associated system" was invented by Delphine Tranvouez-Bernardin (Saint Laurent, Canada), Jocelyn Faubert (Montreal) and Guillaume Giraudet (Charenton-le-Pont, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for determining a design of a progressive lens intended to be worn by a future wearer, the progressive lens comprising a front surface and a back surface, at least one of the front surface and the back surface comprising a progression profile on its general s...