ALEXANDRIA, Va., May 26 -- United States Patent no. 12,638,820, issued on May 26, was assigned to PIZZATO ELETTRICA S.R.L. (Marostica, Italy).

"Multilevel detection device for safety apparatuses for the control of industrial machines or plants" was invented by Giuseppe Pizzato (Marostica, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A detection device for safety apparatuses for the control of industrial machines or plants comprises a reading head adapted to be associated with the receiving device of the safety apparatus to receive a presence signal provided with the identification code following the positioning of one of the movable actuators at a predetermined minimum distance from said reading head...