ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,549, issued on June 10, was assigned to THUNDER BLAST TECHNOLOGY Co. Ltd. (Hong Kong).

"Integrated bone conduction sound generating device and method" was invented by Lei Ma (Hong Kong), Jiahong Ma (Hong Kong), Mile Zhang (Hong Kong) and Yauming Chiu (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided in the present disclosure are an integrated bone conduction sound generating device and method. The device includes a controller, a sound generating structure and a functional structure, and the three components are integrated together. The functional structure can touch the oral cavity and/or the teeth of the human body, and after the c...