ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,551, issued on July 8, was assigned to Mitsuko and Masako LLC (Westclife, Colo.).
"Mouth insert for one-way breathing" was invented by Darrin Miller (Palisade, Colo.) and Brad Anderson (Westcliffe, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A one-way breath training device has a mouth insert engaged to a cage housing a movable baffle. The mouth insert has an air hole extending from a first end to a second end. The baffle moves within the cage between a backstop having air pathways therethrough to the second end of the mouth insert. The cage has one or more guidance tracks which the baffle moves along. When a user attempts to inhale through ...