ALEXANDRIA, Va., Oct. 26 -- Air Products and Chemicals, Allentown, Pennsylvania, has been assigned a patent (9,795,915) developed by four co-inventors for "heater arrangement for TEPSA system." The co-inventors are Mohammad Ali Kalbassi, Weybridge, United Kingdom, April Emma Louise O'Meara, Walton-on-Thames, United Kingdom, Christopher James Raiswell, Crewe, United Kingdom, and Ian Robert Zone, Addlestone, United Kingdom. The abstract states: "The present invention relates to a temperature enhan . . .