ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,476, issued on Dec. 30, was assigned to SpinDr Sports LLC (Austin, Texas).
"Non-spherical and mass shifted athletic training ball" was invented by Jamie Southern Wiggins (Leander, Texas) and Mark G. Wiggins (Leander, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A non-spherical training ball for training a pitcher to throw a ball with proper technique is provided. The training ball has a hollow body having a spherical surface forming a spherical cap having a height greater than the radius of the sphere from which the spherical cap is formed and a substantially planar surface forming the spherical cap plane. Sidewalls form the hollow cavity of...