Patents by Inventor Sharon P. Nelson

Sharon P. Nelson 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).

  • Constant velocity universal joint assembly for downhole motor
    Patent number: 5288271
    Abstract: An apparatus for use in transmitting torque between a first part rotatable about a fixed axis and a second part rotatable in a circular path about the axis, and which includes a torque bar having its ends connected to ends of the parts by universal joints.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: February 22, 1994
    Assignee: Houston Engineers, Inc.
    Inventors: Sharon P. Nelson, Billy J. Roberts