Patents by Inventor Anne E. Roberts

Anne E. Roberts 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).

  • Aluminum sheet products having improved fatigue crack growth resistance and methods of making same
    Patent number: 6562154
    Abstract: Aluminum sheet products having highly anisotropic grain microstructures and highly textured crystallographic microstructures are disclosed. The products exhibit improved strength and improved resistance to fatigue crack growth, as well as other advantageous properties such as improved combinations of strength and fracture toughness. The sheet products are useful for aerospace and other applications, particularly aircraft fuselages.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: May 13, 2003
    Assignee: Aloca Inc.
    Inventors: Roberto J. Rioja, Robert W. Westerlund, Anne E. Roberts, Dhruba J. Chakrabarti, Diana K. Denzer, Anthony Morales, Paul E. Magnusen, Gregory B. Venema