Patents by Inventor J. Mark Gronseth

J. Mark Gronseth 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).

  • Vertical positioning system for drilling boreholes
    Patent number: 5857530
    Abstract: A borehole drilling system has a well tubing actuator with a well tubing connector on a working end of the well tubing actuator, a transducer responsive to longitudinal movement of the working end of the well tubing actuator and a control system for the well tubing actuator to provide controlled longitudinal movement of the well tubing connector using a selected drilling program and feedback from the transducer. Plural lengths of well tubing are connected to the well tubing connector, with a jet drilling apparatus connected to the downhole end of the well tubing. An underreamer apparatus may be attached to the bottom hole end of the well tubing. Coiled tubing may be attached to the bottom hole end of the well tubing and directed through a whipstock.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: January 12, 1999
    Assignee: University Technologies International Inc.
    Inventor: J. Mark Gronseth