ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,556, issued on May 27, was assigned to PAVONIS DIAGNOSTICS INC. (Edmonton, Canada).
"Optical interference diagnostic apparatus and methods of use" was invented by Matthew R. Nickel (Leduc, Canada) and Hillary M. Sweet (Leduc, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "An improved thin film optical interference apparatus, methods of use and of manufacture are provided, the apparatus comprising means for generating optical interference colours directly on the surface of a single layer of anodized metal. The interference colours generated by the presently improved apparatus can be used to indicate the presence of at least one organic compoun...