US Patent Issued to Wilson Sporting Goods on March 24 for "Ball bat having variable wall thickness" (California, Illinois Inventors)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,884, issued on March 24, was assigned to Wilson Sporting Goods Co. (Chicago).

"Ball bat having variable wall thickness" was invented by John P. Steel (Carmichael, Calif.), Ninad Trifale (Chicago), Robert A. Lairmore (Oceanside, Calif.), James M. Earley (Roseville, Calif.), Jeremy H. Yim (Rocklin, Calif.) and Sean P. Griffin (Chicago).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ball bat may include a handle portion and a barrel portion extending away from the handle portion to an end cap. The barrel portion has an outer wall formed from aluminum and includes at least two and no greater than four inwardly projecting circumferential humps spaced b...