Patents by Inventor Eric August Pierre Devuyst

Eric August Pierre Devuyst 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).

  • Copper recovery from sulfate solutions containing nickel and cobalt
    Patent number: 4118221
    Abstract: Copper is separated from nickel present therewith in a sulfate solution by neutralizing to precipitate all the copper and some nickel as basic compounds, and thereafter reducing the copper in the basic compounds to elemental form through formation of cuprous sulfite and thermal dissociation of the latter.
    Type: Grant
    Filed: October 7, 1977
    Date of Patent: October 3, 1978
    Assignee: The International Nickel Company, Inc.
    Inventors: Victor Alexander Ettel, Eric August Pierre Devuyst