ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,488, issued on Dec. 30, was assigned to United States Golf Association (Liberty Corner, N.J.).
"Apparatus for measuring properties of golf putting surface" was invented by James E. Hubbell (Whitehouse Station, N.J.), Scott A. Mingay (Madison, N.J.), Matthew M. Pringle (Bordentown, N.J.) and Stephen U. States (Hillsborough, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for measuring physical properties, e.g., firmness, smoothness, trueness, green speed, of a playing surface on a golf course, includes performing measurements via a measurement apparatus. The measurement apparatus includes a spherical sensor, which in turn includes an acc...