Patents by Inventor Sandy Skinner

Sandy Skinner 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).

  • Signal processing in downhole equipment
    Patent number: 8344904
    Abstract: A method of transmitting power and/or data between downhole equipment and a surface through a circuit including an alternating current (AC) powered motor and its associated power cable for powering the downhole equipment is disclosed, where the data is transmitted at frequencies outside the normal operating ranges that are thought acceptable. Associated circuitry and apparatus for performing the method are disclosed.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: January 1, 2013
    Assignee: Zenith Oilfield Technology Limited
    Inventors: Sandy Skinner, Michael Manning
  • SIGNAL PROCESSING IN DOWNHOLE EQUIPMENT
    Publication number: 20100194585
    Abstract: A method of transmitting power and/or data between downhole equipment and a surface through a circuit including an alternating current (AC) powered motor and its associated power cable for powering the downhole equipment is disclosed, where the data is transmitted at frequencies outside the normal operating ranges that are thought acceptable. Associated circuitry and apparatus for performing the method are disclosed.
    Type: Application
    Filed: February 19, 2008
    Publication date: August 5, 2010
    Inventors: Sandy Skinner, Michael Manning