ALEXANDRIA, Va., July 3 -- United States Patent no. 12,343,801, issued on July 1, was assigned to Johnson Matthey Hydrogen Technologies Ltd. (London).
"Nanoparticles and preparation method" was invented by Nicoleta Muresan (Reading, Great Britain) and Geoffrey Spikes (Reading, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention concerns methods of forming metal-containing nanoparticles or oxide thereof, especially metal alloy nanoparticles. The method the steps of providing at least two different kinds of transition metal ion by providing at least two kinds of metal ion-containing compound; a heating step in which the at least two metal ion-containing compounds are subjected to...