ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,232, issued on July 14, was assigned to GOOGLE LLC (Mountain View, Calif.).

"Hybrid cast and mold for a waveguide optical combiner with diminished sink marks and improved aspect ratio" was invented by Eliezer Glik (San Diego), Bernard C. Kress (Redwood City, Calif.) and Kang Luo (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical component includes a waveguide combiner that has one or more optical components composed of a polymer and at least partially formed via a first casting process, a transparent body formed via a second casting process, the transparent body composed of a polymer and having a first working surface and an...