ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,122, issued on Sept. 9, was assigned to Rapiscan Systems Inc. (Torrance, Calif.).

"Sensitivity traps for electronic trace detection having explosives or narcotics embedded in a plasticized polymer matrix" was invented by Udo H. Verkerk (Toronto), Vladimir Romanov (Pelham, N.H.), Hartwig Schmidt (Tewksbury, Mass.), Stefan Lukow (Windham, N.H.), Robert MacRae (Ayer, Mass.) and Zachary Andersen (Andover, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the present specification provide methods and systems for sensitivity traps that contain a polymer matrix made from an inert polymer material for encapsulation of trace amounts of exp...