ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,713, issued on March 24, was assigned to INVENTIO AG (Hergiswil, Switzerland).
"Extendable evacuation bridge for an elevator" was invented by Stefan Weber (Niederwil, Switzerland), Longhong Wang (Shanghai), Zhihui Zhang (Shanghai), Janey Wang (Shanghai) and Marco Caplazi (Beinwil, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "An evacuation bridge for bridging a horizontal gap between two elevator cars of an elevator system in an emergency situation includes: a support structure having a base plate and at least one side part, wherein the base plate is attachable at its ends to evacuation openings of the elevator cars to form a walkway b...