US Patent Issued to 3M Innovative Properties on March 18 for "Optical film including infrared reflector and multilayer reflective polarizer with crystalline low index layers" (Minnesota Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,702, issued on March 18, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Optical film including infrared reflector and multilayer reflective polarizer with crystalline low index layers" was invented by Adam D. Haag (Woodbury, Minn.), Matthew B. Johnson (Woodbury, Minn.), Carl A. Stover (St. Paul, Minn.) and Timothy J. Nevitt (Red Wing, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Optical films are described. In particular, optical films including a reflective polarizer portion and an infrared portion, with no adhesive between these two portions, are described. These optical films may be particularly suitable for combiner ap...