ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,162, issued on Oct. 6, was assigned to ACUSHNET COMPANY (Fairhaven, Mass.).

"Variable bounce and heel relief for irons" was invented by Joshua G. Breier (Vista, Calif.), Marni D. Ines (San Marcos, Calif.) and Joseph John Van Wezenbeeck (Oceanside, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A golf club head with an improved sole profile is disclosed herein. More specifically, the present invention discloses various types of irons, including wedges, having a toe portion, a heel portion, and a center portion therebetween, in which a camber radius of a sole as measured from a front to a back of the golf club head changes moving from the toe po...