ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,200, issued on Oct. 21, was assigned to PRINCE MOHAMMAD BIN FAHD UNIVERSITY (Dhahran, Saudi Arabia).

"Stacked disk powder feed system" was invented by Mushtaq Khan (Dhahran, Saudi Arabia), Muhammad Asad (Dhahran, Saudi Arabia) and Muhammad Imran Khan (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A feeder system includes a donut-ring-shaped first wheel having a first groove recessed below its top surface, with a first hopper positioned above to receive material. A first conduit connects the hopper bottom to the groove, defining a feeding path. A mixer unit receives materials, connected to the first groove via a first suction h...