Patents by Inventor Robert Lehmensiek

Robert Lehmensiek 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).

  • Antenna system
    Patent number: 7034768
    Abstract: An underground telemetry system having an antenna system having at least one metallic radiating element having a single or a dual top loaded folded monopole configuration and disposed within a metallic housing and having RF electronics to self-calibrate and tune the input impedance of the antenna elements.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: April 25, 2006
    Assignee: Gas Technology Institute
    Inventors: Leendert Johannes du Toit, Robert Lehmensiek
  • Antenna system
    Publication number: 20050062665
    Abstract: An underground telemetry system having an antenna system having at least one metallic radiating element having a single or a dual top loaded folded monopole configuration and disposed within a metallic housing and having RF electronics to self-calibrate and tune the input impedance of the antenna elements.
    Type: Application
    Filed: July 21, 2004
    Publication date: March 24, 2005
    Inventors: Leendert du Toit, Robert Lehmensiek