ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,541, issued on Feb. 24, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).
"Optical stack, optical system, optical detection system, and optical imaging system" was invented by Jessica E. Demay (Maplewood, Minn.), John A. Wheatley (Stillwater, Minn.), William J. Gray (Woodbury, Minn.), Johah Shaver (St. Paul, Minn.), Neil Percy (St. Paul, Minn.), Aaron M. Marcella (White Bear Lake, Minn.), Stephen M. Kennedy (St. Paul, Minn.), Zhaohui Yang (North Oaks, Minn.) and Bharat R. Acharya (Woodbury, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical stack for sensing a presence of an analyte is provided. The optical stack includes ...