US Patent Issued to JOHNSON MATTHEY on March 18 for "Transition metal incorporated alumina for improved three way catalysts" (Japanese Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,683, issued on March 18, was assigned to JOHNSON MATTHEY PLC (London).

"Transition metal incorporated alumina for improved three way catalysts" was invented by Shuhei Nagaoka (Tochigi, Japan) and Xiaorui Zhang (Tochigi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first PGM component and a first alumina, wh...