US Patent Issued to Acushnet on Nov. 25 for "Golf balls having core layers with individual hardness gradients" (Massachusetts, Rhode Island Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,840, issued on Nov. 25, was assigned to Acushnet Co. (Fairhaven, Mass.).

"Golf balls having core layers with individual hardness gradients" was invented by Erin McDermott (Providence, R.I.), Manjari Kuntimaddi (Raynham, Mass.) and Dennis Britton (North Dartmouth, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Golf balls having core layers with individual hardness gradients are provided. The cores have at least one layer with an increased "positive" hardness gradient (or a "hard-to-soft" hardness) where the outer surface of the core is harder than the center. The increased positive hardness gradient can be achieved by introducing a water-releas...