Patents Assigned to Ulterra Drilling Technologies
  • Universal joint
    Patent number: 10508493
    Abstract: A universal joint for use in a downhole drill string includes a planetary gear to convert eccentric rotation in the drill string to axial rotation.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: December 17, 2019
    Assignee: Ulterra Drilling Technologies
    Inventors: Jason Maw, Beau J. St. Pierre, Christopher M. Casad