Patents by Inventor Terry D. Mackey

Terry D. Mackey 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).

  • Sheet retainer
    Patent number: D425127
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: May 16, 2000
    Assignee: Key Group, Inc.
    Inventor: Terry D. Mackey
  • Rolled sheet retainer
    Patent number: D426577
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: June 13, 2000
    Assignee: Key Group, Inc.
    Inventors: Terry D. Mackey, Catherine M. Murphy