Patents by Inventor Donald Hennessy

Donald Hennessy 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).

  • Patent number: D418175
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: December 28, 1999
    Inventor: Donald Hennessy