Patents by Inventor Eduardo de Freitas Couto Rosa

Eduardo de Freitas Couto Rosa 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).

  • Aircraft exhaust valves
    Patent number: 4867116
    Abstract: A spark-ignited internal combustion engine exhaust valve having on critical surfaces thereof, e.g. on the stem where exhaust gases impinge, an aluminide from the group of nickel and titanium aluminides.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: September 19, 1989
    Assignee: Inco Alloys International, Inc.
    Inventors: Eduardo de Freitas Couto Rosa, Gaylord D. Smith