Patents by Inventor David Niebuhr dos Santos

David Niebuhr dos Santos 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).

  • Telephone apparatus
    Patent number: D511153
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: November 1, 2005
    Assignee: Siemens Ltda.
    Inventor: David Niebuhr dos Santos