 American Resources Corporation NASDAQ:AREC said it has secured the exclusive worldwide rights for a new provisional patent filed by the companys technology and research partner, Purdue University, for the isolation and purification of battery-grade materials using multi-mode chromatography for all feedstocks. The provisional patent was filed on March 25, 2022, by the Purdue Research Foundation to establish and protect the companys versatile multi-dimension and multi-mode chromatography methods for producing high-purity lithium, cobalt, nickel, and manganese salts with high yields from all feedstocks including end-of-life batteries, the company said. 