Patents by Inventor Robert G. Silvers

Robert G. Silvers 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).

  • 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 The grout line is withdrawn at a point where it is desired to introduce grout into the bore in the earth.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