Patents by Inventor Donald J. Leone

Donald J. Leone 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).

  • Spinner
    Patent number: 3990814
    Abstract: The spinner for a fan jet engine is constructed from a metallic material having sufficient strength so that it serves as a structural support affording stiffness to the rim of the fan disc.
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: November 9, 1976
    Assignee: United Technologies Corporation
    Inventor: Donald J. Leone