ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,516, issued on April 8, was assigned to Siemens Mobility GmbH (Munich).

"Method for operating an air conditioning system for a vehicle, and air conditioning system arrangement" was invented by Alexander Hildebrandt (Bochum, Germany) and Gerhard Reiss (Krefeld, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for operating an air conditioning system for a vehicle for transporting persons. The air conditioning system, depending on the current number of passengers in a passenger compartment of the vehicle (level of occupation), controls a fresh air volume flow to be introduced into the passenger compartment from outside the vehicle in or...