ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,552, issued on May 20, was assigned to Johnson Matthey PLC (London).

"Exhaust gas joule heater" was invented by Carlos Fonte (Royston, Great Britain), Gregory Gregori (Royston, Great Britain), Nigel Jones (Royston, Great Britain), Chris Morgan (Royston, Great Britain), Daniel Oakes (Royston, Great Britain) and Timothy O'Connell (Royson, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for the catalytic treatment of gas having a casing and a catalytic article within the casing wherein the catalytic article comprises a ceramic honeycomb monolith which hosts a metallic track containing at least one least one metal, metal alloy,...