Patents Assigned to GPK Products, Inc.
  • Locator plug system
    Patent number: 7391324
    Abstract: A locator plug system for efficiently locating utility services that utilize a plug. The locator plug system includes a plug for a utility service and an electronic marker attached to the plug. The electronic marker may be attached to the plug or formed integrally within the plug.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: June 24, 2008
    Assignee: GPK Products, Inc.
    Inventors: Tim A. Pflugrath, Mike J. Lothspeich