ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,178, issued on Sept. 16, was assigned to CATALER Corp. (Kakegawa, Japan).
"Ammonia oxidation catalyst device" was invented by Yoshinori Yamashita (Kakegawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ammonia oxidation catalyst device, including a substrate, a first catalyst coat layer and a second catalyst coat layer, wherein: the first catalyst coat layer includes inorganic oxide particles and a catalytic noble metal supported on the inorganic oxide particles; the second catalyst coat layer includes an NOx selective reduction catalyst and a proton zeolite H-Zeolite; the first catalyst coat layer is present on the substrate; and the se...