Patent awarded to Pro-Or from the United States Patent and Trademark Office for its PGM recovery

PRO-OR has announced that the United States Patent and Trademark Office (USPTO), the U.S. intellectual property protection organization affiliated with the United States Department of Commerce has granted a patent for the innovative technological process for the recovery of platinum group metal (PGM) from ore and / or concentrates as PGM-rich used automobile catalytic converters and other.