ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,731, issued on Sept. 16, was assigned to Westwater Resources Inc. (Centennial, Colo.).
"Methods for purifying graphite" was invented by Cevat W. Er (Centennial, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to methods for purifying graphite comprising the steps of caustic roasting, acid leaching, and thermal treatment."
The patent was filed on Aug. 26, 2021, under Application No. 17/412,642.
*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=12415731&OS=1...