ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,160, issued on Dec. 2, was assigned to Danmarks Tekniske Universitet (Kgs. Lyngby, Denmark).

"Grating reflector" was invented by Kresten Yvind (Kgs. Lyngby, Denmark), Arnhold Simonsen (Kgs. Lyngby, Denmark), Gyeong Cheol Park (Kgs. Lyngby, Denmark) and Thor Ansbaek (Kgs. Lyngby, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "A grating reflector. The grating reflector includes a mesh structure defining a mesh plane and having a thickness normal thereto. The mesh structure includes parallel bars and parallel crossbars, which extend along a direction orthogonal to the bars. The bars and crossbars define a 2D grid of elongated holes, each extendi...