Patents by Inventor Michael J. Hennigan

Michael J. Hennigan 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).

  • Memo pad holder
    Patent number: D290024
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: May 26, 1987
    Assignee: The Wolff Marketing Group Inc.
    Inventors: Michael J. Hennigan, Stephen H. Wolff