US Patent Issued to 3M Innovative Properties on Sept. 15 for "Passive radiative cooling film for antennas" (Swedish, American Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,628, issued on Sept. 15, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Passive radiative cooling film for antennas" was invented by Timothy J. Hebrink (Scandia, Minn.), Pontus S.B. Broddner (Sundbyberg, Sweden), John P. Baetzold (North St. Paul, Minn.), Derek J. Dehn (Maplewood, Minn.) and Charles A. Hill (St. Paul, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cooling film for use in passively cooling an antenna includes an antisoiling layer secured to a first major surface of a reflective microporous layer. The reflective microporous layer comprises a first fluoropolymer and is diffusely reflective of electromagnetic r...