ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,269, issued on Aug. 19, was assigned to Scania CV AB (Sodertalje, Sweden).

"Control device and method for deriving engine-out NOx concentration" was invented by Christer Lundberg (Ronninge, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control device and a method for deriving an engine-out NOx concentration in an exhaust system comprising a SCR catalyst, a dosing device for dosing a reductant, a first NOx sensor arranged downstream of the dosing device and a second NOx sensor arranged downstream the SCR catalyst. The method comprises deriving engine-out NOx concentration based on a first concentration reading obtained from the first NOx se...