ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,708,329, issued on Aug. 18, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).
"Optical film for oxygen saturation sensing" was invented by Zhiping Liu (Guangzhou, China), Fan Long (Guangzhou, China), John A. Wheatley (Stillwater, Minn.), Bharat R. Acharya (Woodbury, Minn.), Ryan T. Fabick (Shoreview, Minn.), Zhe Hu (Suzhou City, China) and Edward J. Kivel (Stillwater, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A display system for sensing a user body portion, including a display panel configured to form an image for viewing by the user, an optical reflector having a plurality of polymeric layers, and at least one optical sensor f...