ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,008, issued on May 6, was assigned to Vitro Flat Glass LLC (Cheswick, Pa.).
"Burn-off protective coating" was invented by Farzad Fareed (Gibsonia, Pa.), Adam D. Polcyn (Pittsburgh) and Erin A. Casci (Pittsburgh).
According to the abstract* released by the U.S. Patent & Trademark Office: "A protected substrate includes a planar substrate having a surface and a burn-off temporary protective layer positioned over at least a portion of the surface. The burn-off temporary protective layer includes a wax, a polyolefin, a polyester, a polycarbonate, a polyether, or some combination thereof. The burn-off temporary protective layer is removable by a heat treatment process that does not su...