Patents by Inventor Henry F. Frazier

Henry F. 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).

  • Emulsion and method of making same
    Patent number: 4475953
    Abstract: The invention relates to an emulsion and a method of making same based on adding water to a sulfur reaction product, the latter being prepared by reacting certain first and second hydrocarbons with elemental sulfur.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: October 9, 1984
    Assignee: Southwest Research Institute
    Inventors: Allen C. Ludwig, Larry W. Wolter, Henry F. Frazier
  • Sulfur compounds and method of making same
    Patent number: 4290816
    Abstract: Elemental sulfur is reacted in a certain manner with at least first and second hydrocarbons to form an asphalt-like material.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: September 22, 1981
    Assignee: Southwest Research Institute
    Inventors: Allen C. Ludwig, John M. Dale, Henry F. Frazier
  • Sulfur compounds and method of making same
    Patent number: RE31575
    Abstract: Elemental sulfur is reacted in a certain manner with at least first and second hydrocarbons to form an asphalt-like material.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: May 1, 1984
    Assignee: Southwest Research Institute
    Inventors: Allen C. Ludwig, John M. Dale, Henry F. Frazier