ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,579, issued on Dec. 30, was assigned to JOHNSON MATTHEY PLC (London).
"Humic acid assisted metal nanoparticle synthesis for three-way catalysis application" was invented by Qinghe Zheng (Wayne, Pa.), Jing Lu (Wayne, Pa.) and Michael Howard (Wayne, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing a catalyst article, the method comprising: providing a complex of a humic acid or derivative thereof, and a PGM; providing a support material; applying the complex to the support material to form a loaded support material; disposing the loaded support material on a substrate; and heating the loaded support material to form nanopar...