Patents by Inventor Terry Kirk

Terry Kirk 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).

  • Hard composite cutting insert and method of making the same
    Publication number: 20070227782
    Abstract: A hard composite cutting insert useful for cutting strata such as earth or rock that includes a body that is tough. The body contains a member that is harder than the body (i.e., has a harder region). The combination of the tough body with the harder member (or region) embedded therein provides a hard composite cutting insert with advantageous properties when used in conjunction with a bit body for impinging upon, and thereby disintegrating, the earth strata.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 4, 2007
    Inventors: Terry Kirk, Brian Nussbaum, Jon Bitler