Patents by Inventor Ann M. Gulau

Ann M. Gulau 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).

  • Rhenium-bound tungsten carbide composites
    Patent number: 5476531
    Abstract: Rhenium metal is used as the sole binder metal in preparing hard metals based upon tungsten carbide, titanium carbide or hafnium carbide. The resultant hard metals can be used in conventional applications such as cutting tools.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: December 19, 1995
    Assignee: The Dow Chemical Company
    Inventors: Edward E. Timm, Ann M. Gulau