Patent 7790012 was granted and assigned to Calera on September, 2010 by the United States Patent and Trademark Office.
A low-energy method and system of forming hydroxide ions in an electrochemical cell. On applying a low voltage across the anode and cathode, hydroxide ions form in the electrolyte containing the cathode, protons form at the anode but a gas e.g. chlorine or oxygen does not form at the anode.