ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,611, issued on Jan. 13, was assigned to Sumitomo Rubber Industries Ltd. (Kobe, Japan).
"Golf club head" was invented by Anthony Munson (Huntington Beach, Calif.), Jacob Lambeth (Irvine, Calif.) and Dustin Brekke (Fountain Valley, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An iron-type golf club head includes a striking face comprising a face center and a variable face thickness such that the striking face has a perimeter region proximate an outer boundary of the striking face and a maximum thickness of the striking face located in the perimeter region. A shell of the golf club head includes a crown, a sole opposite the crown, a heel, a to...