Patents by Inventor Christi Gober Willison

Christi Gober Willison 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).

  • Process for manufacture of semipermeable silicon nitride membranes
    Patent number: 6660648
    Abstract: A new class of semipermeable membranes, and techniques for their fabrication, have been developed. These membranes, formed by appropriate etching of a deposited silicon nitride layer, are robust, easily manufacturable, and compatible with a wide range of silicon micromachining techniques.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: December 9, 2003
    Assignee: Sandia Corporation
    Inventors: Paul Charles Galambos, Randy J. Shul, Christi Gober Willison