ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,550, issued on July 8.
"Apparatus and method for performing semi-occluded vocal tract exercises" was invented by Joseph Patrick Lundquist (Volente, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "An improved apparatus and method for practicing Semi-Occluded Vocal Tract exercises. The improved apparatus comprises a novel hollow apparatus that enables and enhances semi-occluded vocal tract breathing and vocalizing exercises. A preferable embodiment comprises a hollow air chamber enclosed in an encasing with an air entrance and a plurality of exits. The encasing may be made of metal, rubber, silicone, plastic, or another durable material. The encas...