ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,525, issued on March 3, was assigned to FlatFrog Laboratories AB (Lund, Sweden).

"Touch device" was invented by Aleksander Kocovski (Malmo, Sweden), Hakan Bergstrom (Torna-Hallestad, Sweden) and Jens Thorvinger (Lund, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "An assembly for holding and controlling curvature of a glass plate for an optical touch sensitive system is described. The assembly comprising a first frame element extending in a first plane and configured to extend at least partially around a panel; at least one second frame element extending in a second plane and forming a support portion for the plate, and at least one spacing e...