Patents by Inventor Dirk Alfermann

Dirk Alfermann 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).

  • Publication number: 20120043136
    Abstract: The invention relates to a drilling rig (10) for deep well drilling for the onshore sector, comprising at least one drilling device (30), wherein the drilling rig (10) is designed to be movable with respect to the land surface. The object of the invention is to provide a drilling rig (10) with which a multiplicity of wells can be drilled at short distances apart with short set-up times. This object is achieved in that the auxiliary units (50 to 59) required for the drilling are arranged substantially inside the drilling rig (10), and in that the position of the drilling device (30) inside the drilling rig (10) is movable with respect to the drilling rig (10).
    Type: Application
    Filed: August 15, 2008
    Publication date: February 23, 2012
    Inventor: Dirk Alfermann