Patents by Inventor David Frazier

David Frazier 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).

  • Emulsifier system for tertiary oil recovery
    Patent number: 4313835
    Abstract: A new emulsifier system for use in the tertiary recovery of oil comprises a mixture of an alcohol having no more than 12 carbon atoms and a surfactant comprising a neutralized, oxidized solvent extracted oil.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: February 2, 1982
    Assignee: The Standard Oil Company
    Inventors: Harvey E. Alford, David Frazier