Patents by Inventor Martin Zell

Martin Zell 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: D302240
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: July 18, 1989
    Inventor: Martin Zell