ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,016, issued on June 10, was assigned to Johnson Matthey PLC (London).

"Method of treating exhaust gas and system for same" was invented by Daniel Avis (Royston, Great Britain), Rafal Baran (Reading, Great Britain), Gavin Brown (Royston, Great Britain), Alexander Green (Royston, Great Britain), Neil Greenham (Royston, Great Britain), Matthew Harris (Royston, Great Britain), Oliver Hemming (Billingham, Great Britain), Carmelo Iacono (Reading, Great Britain), Caitlin Jenkins (Reading, Great Britain), Alanna Murphy (Royston, Great Britain) and Paul Phillips (Royston, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of treating exhau...