ALEXANDRIA, Va., May 12 -- United States Patent no. 12,626,679, issued on May 12.
"Portable passive sound amplifier with power bank system" was invented by Luis Bustamante (The Woodlands, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a hub device having a unitary body with walls located on top, bottom, front, rear, and a pair of side walls defining a cavity within the unitary body which has an internal power source and a set of electronics for wireless and wired power charge capabilities. The front wall has an opening for receiving a base piece into the cavity of the unitary body, with the base piece having a bottom surface and a locking ridge extending from the bottom surface. The u...