ALEXANDRIA, Va., May 19 -- United States Patent no. 12,629,582, issued on May 19, was assigned to Katoa Corp. (Chino Hills, Calif.).

"Interchangeable mouth shield" was invented by Sione Haiola (Chino Hills, Calif.) and Shazia Peshimam (Fullerton, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The interchangeable mouth shields disclosed herein include a lip-anterior portion and teeth tray that can be releasably coupled together. The lip-anterior portion includes a panel positioned anterior to a lip shield. The panel can be customized to be different shapes and have decorative features. The interchangeable mouth shield includes a vent enabling a user to breathing through the interchangeable mouth shield...