ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,739, issued on Feb. 10, was assigned to Johnson Matthey PLC (London).
"Method for manufacturing gasoline particulate filter" was invented by Brenda Benet Rajkumar (Royston, Great Britain), Ketan Chavda (Royston, Great Britain), Lucy Clowes (Royston, Great Britain), Olivia Dunseath (Reading, Great Britain) and Mark Walton (Royston, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for the manufacture of a gasoline particulate filter (GPF) for the treatment of an exhaust gas is disclosed. The method comprises (i) forming a washcoat slurry; (ii) coating a wall-flow filter substrate with the washcoat slurry to form a washcoated subst...