Patents by Inventor Darrish W. Barnette

Darrish W. Barnette 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).

  • Sodium removal, from brines
    Patent number: 4929588
    Abstract: A method for removing 99% of the sodium ions from a natural or industrial brine containing dissolved salts of metals of Group 1A of the periodic chart and in which brine sodium ions are not the predominant metal ions by contacting the brine at pH 11 to 12 with an ion exchanger selected from crystalline antimonic acid and polyantimonic acid, and removing from contact with the ion exchanger the brine with greater than 99% of the sodium ions removed.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: May 29, 1990
    Assignee: Lithium Corporation of America
    Inventors: Teresita C. Frianeza-Kullberg, Darrish W. Barnette
  • Sodium removal from brines
    Patent number: 4859343
    Abstract: A method for removing 99% of the sodium ions from a natural or industrial brine containing dissolved salts of metals of Group 1A of the periodic chart and in which brine sodium ions are not the predominant metal ions by contacting the brine at pH 11 to 12 with an ion exchanger selected from crystalline antimonic acid and polyantimonic acid, and removing from contact with the ion exchanger the brine with greater than 99% of the sodium ions removed.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: August 22, 1989
    Assignee: Lithium Corporation of America
    Inventors: Teresita C. Frianeza-Kullberg, Darrish W. Barnette