US Patent Issued to 3M Innovative Properties on June 16 for "Shaped optical films and methods of shaping optical films" (Minnesota Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,415, issued on June 16, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Shaped optical films and methods of shaping optical films" was invented by Robert M. Jennings (Shoreview, Minn.), William T. Fay (Woodbury, Minn.), Jo A. Etter (Stillwater, Minn.), Arthur L. Kotz (Woodbury, Minn.) and David J. W. Aastuen (Shoreview, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical film includes a plurality of polymeric layers shaped along orthogonal first and second directions. A first curve being an intersection of the optical film with a first plane orthogonal to the second direction and to a reference plane has a best-fit first...