Patents by Inventor Gary Hefner

Gary Hefner 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).

  • Drill bit tip
    Patent number: D544892
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: June 19, 2007
    Assignee: Forest City Tool, Inc.
    Inventors: Anthony R. Watson, Brian Teague, Gary Hefner