ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,584, issued on Dec. 23, was assigned to Karsten Manufacturing Corp. (Phoenix).

"Golf club head or other ball striking device having impact-influencing body features" was invented by Joshua M. Boggs (Aledo, Texas), Kevin Harper (Fort Worth, Texas), Eric A. Larson (Arlington, Texas), Michael T. Prichard (Portland, Ore.), Hiromitsu Akiyama (Tokyo) and Yoshimasa Fujita (Ping-Tung Hsien, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ball striking device, such as a golf club head, has a face with a striking surface configured for striking a ball and a channel extending across a portion of the sole. The channel may be recessed from adjacent surfa...