ALEXANDRIA, Va., May 5 -- United States Patent no. 12,620,503, issued on May 5, was assigned to Mettler-Toledo LLC (Columbus, Ohio).

"Rolling radiation shield" was invented by Michael Evans (Land O Lakes, Fla.), Steven Guindine (Lutz, Fla.), Alisher Khodjaniyazov (Land O Lakes, Fla.), Gabriel Malestein (Spring Hill, Fla.) and Christopher Sisemore (Land O Lakes, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rolling radiation shield and related systems and methods for providing radiation shielding at an imaging machine are disclosed. An imaging device is located within a housing which also accommodates a conveyor for moving objects through the housing and within imaging distance of the imagining device...