Patents by Inventor Tad Ell

Tad Ell 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: D636492
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: April 19, 2011
    Assignee: Phonak AG
    Inventors: Paul Aquilina, Tad Ell, Li Li