ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,075, issued on Feb. 17, was assigned to Mettler-Toledo Thornton Inc. (Billerica, Mass.).

"Bioburden analyzer with ultraviolet enhancement" was invented by Robert J McLean (Manchester, N.H.), Anthony C. Bevilacqua Jr. (Medford, Mass.), Kim Perkins (Phoenix) and Anjan Reijnders (Groton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Bioburden analysis devices and related systems and methods are disclosed which utilize ultraviolet (UV) irradiation to enhance accuracy of results. A light source producing UV light is positioned along a passageway for a fluid flow upstream of a laser subsystem. The laser subsystem includes a laser which excites part...