Patents Assigned to Geothermal Professionals ltd
  • Geothermal drilling device and method
    Patent number: 8307530
    Abstract: A system for introducing a geothermal system having a geothermal line and a releasable grout line into a bore in the earth is described. The grout line is withdrawn at a point where it is desired to introduce grout into the bore in the earth.
    Type: Grant
    Filed: June 13, 2010
    Date of Patent: November 13, 2012
    Assignee: Geothermal Professionals ltd
    Inventors: Kevin E. Neff, Robert G. Silvers