MUMBAI, India, July 31 -- Intellectual Property India has published a patent application (202617063880 A) filed by Johnson Matthey Public Limited Company on May 20, 2026, for Multi-Layer Twc Formulations With Optimalized Pgm Loadings.
Inventors include Liu, Dongxia; Vlachou, Maria C.; Kolpin, Amy Louise; and Stonehouse, Peter Charles.
The application for the patent was published on July 24, 2026, under issue no. 30/2026.
Abstract: 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 palladium component; wherein the first catalytic region is adjacent to the second catalytic region; and wherein the first palladium component and the second rhodium component have a weight ratio of from 3:1 to 19:1, based on element.
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