ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,936, issued on Aug. 19, was assigned to Eastman Chemical Co. (Kingsport, Tenn.).
"HMI display covers having low birefringence" was invented by Marcus David Shelby (Fall Branch, Tenn.), Robert E. McCrary (Kingsport, Tenn.), Thomas Joseph Pecorini (Kingsport, Tenn.), Michael Gage Armstrong (Johnson City, Tenn.), Douglas Weldon Carico (Kingsport, Tenn.) and Michael Eugene Donelson (Kingsport, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an optically clear protective cover plate for Human Machine Interface (HMI) touch panel displays wherein the cover plate is formed from a thermoplastic polymer comprising a high melt flow polycarbona...