ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,917, issued on April 22, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).
"Coextruded polymeric article and method of making the same" was invented by Michael B. Runge (Stillwater, Minn.), Vasav Sahni (St. Paul, Minn.), Ronald W. Ausen (St. Paul, Minn.), Scott M. Tapio (Falcon Heights, Minn.) and William J. Kopecky (Hudson, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system including a polymeric sheet. The polymeric sheet comprises a base sheet having a first surface and a second surface opposite the first surface and a multiplicity of spaced rails projecting from the first surface of the base sheet. The rails comprise a stem...