ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,624, issued on Feb. 10, was assigned to Topgolf Sweden AB (Danderyd, Sweden).
"Determining spin based on club parameters" was invented by Ludvig Jansson (Bromma, Sweden), Simon Johansson (Vasteras, Sweden) and Kent Bertilsson (Skogas, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus for determining spin of a golf ball in flight. At least a portion of an observed trajectory of the golf ball and one or more parameters associated with the trajectory are obtained. The parameters are selected from launch angle, ball speed, club speed and ball carry. Two or more spin candidates are obtained for the golf ball. Each spin candidate...