Patents by Inventor Joy E. Tiffin

Joy E. Tiffin 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).

  • Tab top can opener
    Patent number: D278024
    Type: Grant
    Filed: April 12, 1983
    Date of Patent: March 19, 1985
    Assignee: The Ron Hoffman Group, Inc.
    Inventors: Ronald J. Hoffman, Joy E. Tiffin, Paula L. Kovarik, Susan C. Moinester, Thomas H. Miller