ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,864, issued on Nov. 25, was assigned to Shenzhen Qanba Technology Development Co. Ltd (Shenzhen, China).
"Shaft joystick" was invented by Kai Liu (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shaft joystick is provided, which relates to the technical field of game peripherals. The shaft joystick includes an upper cover body, a lower cover body and a lever; the lower cover body is provided with an antiskid pad; at least one weight stack is detachably assembled between the upper cover body and the lower cover body; and a circumferential side of the weight stack is locked to the lower cover body. An accommodating slot for mounting t...