ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,457, issued on Sept. 8, was assigned to ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY (Scottsdale, Ariz.).

"Zigzag flow reactor for heterogenous thermochemical reduction" was invented by Rhushikesh Ghotkar (Tempe, Ariz.), Ryan Milcarek (Gilbert, Ariz.), Ivan Ermanoski (Tempe, Ariz.), James Miller (Albuquerque, N.M.) and Roy Hogan Jr. (Albuquerque, N.M.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure concerns reactors for reducing metal oxide particles comprising: (a) a vertical heated channel; (b) a plurality of inclined, vertically stacked metal meshes, said meshes comprising: (i) a particle opaque portion comprising ...