Patents by Inventor Walter John Sloan

Walter John Sloan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Carbonate reduction
    Patent number: 4049519
    Abstract: Reduction of carbonate concentrations in cyanide-containing electroplating baths and congeneric solutions using an electrolytic cell, equipped with cation permselective membranes, by the selective addition of hydrogen ions whereby the carbonate ions are converted, in sequence, to bicarbonate ions and then to carbonic acid which decomposes to water and carbon dioxide.
    Type: Grant
    Filed: October 6, 1976
    Date of Patent: September 20, 1977
    Inventor: Walter John Sloan