Patents by Inventor Darrell Vantreese

Darrell Vantreese 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).

  • INTEGRATED CAST MATRIX SLEEVE API CONNECTION BIT BODY AND METHOD OF USING AND MANUFACTURING THE SAME
    Publication number: 20110000718
    Abstract: A drill bit including a bit body and an upper portion, wherein the bit body and the upper portion are comprised of a matrix material, and wherein the upper portion includes a threaded connection comprised of a machineable matrix material is disclosed.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 6, 2011
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Steve Bankes, Gary Chunn, Tommy Gene Ray, Darrell Vantreese, Kenneth Scholwinski