US Patent Issued to Lumotive on Sept. 22 for "Metasurface devices with multilayer passivation coatings" (Washington Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,995, issued on Sept. 22, was assigned to Lumotive Inc. (Redmond, Wash.).

"Metasurface devices with multilayer passivation coatings" was invented by Erik Edward Josberger (Renton, Wash.), Lie "Larry" Zhao (Washougal, Wash.), Linda Gail Conway (Duvall, Wash.) and Gleb M. Akselrod (Kenmore, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tunable optical device includes a dielectric substrate with an array of metallic extension elements extending therefrom. The metallic extension elements are spaced closely together with subwavelength gaps between them. A multilayer passivation coating is applied to at least the opposing sidewalls and the top wa...