Patents by Inventor Rex C. Niven

Rex C. Niven 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).

  • Electric fence monitoring system with energizer, responder and receiver
    Patent number: 4297633
    Abstract: Electric fences have been used for many years to control the movement of animals but where these fences have spanned large distances it has been very difficult to ensure that the fence is effective at the perimeters of the distance without continual supervision of the fence. The invention relates to a monitor which has one or more responders, preferably located at remote points of the fence which can transmit a return signal to a receiver at a convenient point to indicate the effectiveness of the fence.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: October 27, 1981
    Assignee: The University of Melbourne
    Inventors: John C. McCutchan, Rex C. Niven