Patents by Inventor David Ivey

David Ivey 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).

  • Folding spanner wrench
    Patent number: D337492
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: July 20, 1993
    Assignee: Ryan Engineering & Design Co., Inc.
    Inventors: Bobby W. Ryan, David Ivey, Thomas D. Sullivan