ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,947, issued on April 7, was assigned to FCA US LLC (Auburn Hills, Mich.).

"System and method of monitor quality of a refrigerant in a cooling system" was invented by Alexander J. George (Whitmore Lake, Mich.) and Michael Wiland (Washington Township, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigerant quality sensor includes an elongated sensor housing comprising a first end wall and a second end wall and at least one side wall extending between the first end wall and the second end wall. A refrigerant inlet and a refrigerant outlet are disposed in the at least one side wall. A light source is disposed at the first end wall. A photosen...