ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,473, issued on April 7, was assigned to Guangzhou Shifen Technology Co. Ltd. (Guangzhou, China).
"Volleyball training device" was invented by Weiping Qiu (Guangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A volleyball training device, including: a mounting mechanism, a collection mechanism and a ball-control mechanism. The mounting mechanism is configured to secure the volleyball training device to a position for use. The collection mechanism is configured to receive and temporarily store balls. The ball-control mechanism and/or the collection mechanism are connected to the mounting mechanism, and the ball-control mechanism is located ...