Patents by Inventor James O. Sinkinson

James O. Sinkinson 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).

  • BACKUP CUTTING ELEMENTS ON NON-CONCENTRIC REAMING TOOLS
    Publication number: 20110005841
    Abstract: An apparatus for reaming or enlarging a borehole comprising a bi-center drill bit having backup cutters thereon.
    Type: Application
    Filed: July 7, 2009
    Publication date: January 13, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Matthew S. Wood, James O. Sinkinson