US Patent Issued to Johnson Matthey on July 1 for "Catalyst article having high local rhodium concentration" (British, American, Thai Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,343,707, issued on July 1, was assigned to Johnson Matthey PLC (London).

"Catalyst article having high local rhodium concentration" was invented by Wolfgang Strehlau (Bangkok), Dongxia Liu (Wayne, Pa.), Andrew Armitage (Royston, Great Britain), Amy Kolpin (Reading, Great Britain) and Michael Howard (Wayne, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising support material particles; at least some of the support material particles are rhodium-supporting sup...