ALEXANDRIA, Va., June 18 -- United States Patent no. 12,324,972, issued on June 10, was assigned to AZUNI INTERNATIONAL Co. LTD. (Taichung, Taiwan).
"Explosion-proof hitting ball and training device including the same" was invented by Li-Lan Wu (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An explosion-proof hitting ball and a training device including the same are provided, wherein the explosion-proof hitting ball includes: a tubular member made of plastic material and including an outer wall; and a ball member made of explosion-proof material and including a tubular wall and a ball wall, the tubular wall and the ball wall being transverse and connected to each other to form a chamber, th...