Elemetal is pleased to bring the news that it has received notification that the patent application in the United States has been granted for the hydrometallurgical process to recover metals from bottom ashes, the residue from waste to energy facilities. The patent, with application number 13/500,485, has a standard term of 20 years from the effective date of 6 October 2009 (being the date of original filing of the PCT Application from which the United States patent is derived).
