ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,247, issued on Oct. 21, was assigned to INVENTIO AG (Hergiswil, Switzerland).

"Inspection control system for an elevator system and method for switching an elevator system between a normal mode and an inspection mode" was invented by Frank Olivier Roussel (Lucerne, Switzerland) and Markus Walker (Ziefen, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "Inspection control system switches elevator system between normal and inspection modes and includes: operating device and at least one emergency stop switch in elevator shaft for deactivating normal and/or inspection mode, for preventing and/or interrupting movement of car. In inspection mod...