ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,804, issued on March 3, was assigned to Vitro Flat Glass LLC (Cheswick, Pa.).

"Solar control coatings with quadruple metallic layers" was invented by Patrick Fisher (Pittsburgh), Paul A. Medwick (Wexford, Pa.), Adam D. Polcyn (Pittsburgh) and Andrew Wagner (Pittsburgh).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coated article includes a substrate, a first dielectric layer, a first metallic layer, a second dielectric layer, a second metallic layer, a third dielectric layer, a third metallic layer, a fourth dielectric layer, a fourth metallic layer and a fifth dielectric layer. At least one of the metallic layers is a discontinuous metallic layer...