ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,267, issued on Oct. 28, was assigned to International Engine Intellectual Property Co. LLC (Lisle, Ill.).
"DEF quality sensor integrated into a DEF tank with replaceable control circuitry" was invented by Paul Boon Charintranond (Palatine, Ill.), Navtej Singh (Arlington Heights, Ill.) and John Anthony Williams (Palatine, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A DEF quality sensor integrated into a DEF tank with removable control circuitry preferably includes a housing and control circuitry. The housing preferably includes a base housing portion and a detachable cover. A sensor opening is formed through a bottom of the DEF tank to receiv...