Patents by Inventor Daniel D. Petersen

Daniel D. Petersen 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).

  • Solid freeform fabrication apparatus and methods
    Patent number: 7168935
    Abstract: An apparatus for formation of a three dimensional object comprising a sealed container; an electron beam subsystem capable of directing energy within said container; a positioning subsystem contained within said container; a wire feed subsystem contained within said container; an instrumentation subsystem electronically connected to said electron beam subsystem, positioning subsystem, and wire feed subsystem; and a power distribution subsystem electrically connected to said electron beam subsystem, positioning subsystem, wire feed subsystem, and said instrumentation subsystem.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: January 30, 2007
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Karen M. Taminger, J. Kevin Watson, Robert A. Hafley, Daniel D. Petersen