Patents by Inventor Boyd B. Black

Boyd B. Black 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 with a retained jack element
    Patent number: 7753144
    Abstract: A drill bit having a bit body intermediate a shank and a working face having at least one cutting insert. A bore is formed in the working face co-axial within an axis of rotation of the drill bit. A jack element is retained within the bore by a retaining element that intrudes a diameter of the bore.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: July 13, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Francis Leany, Joe Fox, Tyson J. Wilde, Boyd B. Black