ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,582, issued on Dec. 23, was assigned to Karsten Manufacturing Corp. (Phoenix).

"Golf club heads with energy storage characteristics" was invented by Martin R. Jertson (Phoenix), Eric J. Morales (Laveen, Ariz.), Cory S. Bacon (Cave Creek, Ariz.), Calvin Wang (Chandler, Ariz.), Xiaojian Chen (Phoenix), Ryan M. Stokke (Anthem, Ariz.) and Travis D. Milleman (Portland, Ore.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of golf club heads with energy storage characteristics are presented herein. In some embodiments, a golf club head comprises a hollow body comprising a strikeface, a heel region, a toe region opposite the heel region, a sole, ...