US Patent Issued to Johnson Matthey on Sept. 29 for "Multi-layer TWC formulations with optimalized PGM loadings" (British, American Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,510, issued on Sept. 29, was assigned to Johnson Matthey PLC (London).

"Multi-layer TWC formulations with optimalized PGM loadings" was invented by Dongxia Liu (Wayne, Pa.), Maria C. Vlachou (Reading, Great Britain), Amy Louise Kolpin (Reading, Great Britain) and Peter Charles Stonehouse (Wayne, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end, an outlet end with an axial length L; a first catalytic region comprising a first palladium component; a second catalytic region comprising a second rhodium component; a third catalytic region comprising a third pal...