Patents by Inventor Frederick W. Du Vall

Frederick W. Du Vall 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).

  • Nozzle assembly
    Patent number: 4666084
    Abstract: A nozzle assembly capable of controlling the hot exhaust gases which flow om the burning solid rocket propellant.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: May 19, 1987
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ronald B. Mitchell, Frederick W. Du Vall