ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,470, issued on Jan. 13, was assigned to INVENTIO AG (Hergiswil, Switzerland).
"Elevator system" was invented by Romeo Lo Jacono (Gravesano, Switzerland), Gilles Trottmann (Meierskappel, Switzerland), Nilesh Thombare (Maharashtra, India) and Erich Butler (Ebikon, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "An elevator system has an elevator car with a roof on which roof a balustrade is arranged as a fall protection for delimiting an accessible inner region on the roof. The balustrade includes a guide rail engagement means via which the balustrade can be brought into engagement with a guide rail by a latching mechanism for a secure posi...