ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,217,931, issued on Feb. 4, was assigned to University of Kansas (Lawrence, Kan.) and Kansas State University Research Foundation (Manhattan, Kan.).

"Graphene based substrates for imaging" was invented by Eduardo Rosa-Molinar (Lawrence, Kan.), Noraida Martinez-Rivera (Lawrence, Kan.), Prem Singh Thapa-Chetri (Lawrence, Kan.), WenJun Xiang (Manhattan, Kan.) and Suprem Ranjan Das (Manhattan, Kan.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are articles comprising substrate and graphene coating that are configured to support a sample for electron or optical microscopy. Also disclosed are methods of making the same and methods of using the same i...