Patents by Inventor Wilhelmina H. Upchurch, legal representative

Wilhelmina H. Upchurch, legal representative 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).

  • Catalyst for treatment and control of post-combustion emissions
    Patent number: 7371358
    Abstract: The present invention utilizes two precious metals with two to five different metal-oxides in a layered matrix to convert CO, HCs, and NOx to CO2, and N2 by oxidation of two components and reduction of the other in a moderately high temperature gaseous environment containing excess oxygen.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: May 13, 2008
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Wilhelmina H. Upchurch, legal representative, David R. Schryer, Billy T. Upchurch