ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,616, issued on March 25, was assigned to META PLATFORMS TECHNOLOGIES LLC (Menlo Park, Calif.).

"Heliconical liquid crystal polarization hologram and device including the same" was invented by Nicholas John Diorio Jr. (Duvall, Wash.), Mengfei Wang (Woodinville, Wash.), Yuge Huang (Painted Post, N.Y.), Kai-Han Chang (Troy, Mich.), Lu Lu (Kirkland, Wash.) and Xiayu Feng (Kirkland, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device includes a plurality of electrode layers. The device also includes a birefringent medium layer disposed between the plurality of electrode layers. The device also includes at least one alignment structure disposed...