ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,560, issued on June 23, was assigned to Karsten Manufacturing Corp. (Phoenix).

"Golf club face with roughness characteristics for more consistent performance in wet and dry conditions" was invented by Daniel Ura Hernandez (Phoenix) and Erik M. Henrikson (Phoenix).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wedge-type golf club head comprises unique surface roughness structures that improve spin in wet conditions by providing a system of peaks and valleys that grip the ball and relocate water from the hitting surface. The hitting surface can be characterized by statistical measurements such as average surface roughness (Sa), skewness (Ssk), root ...