Patents by Inventor Edward W. Crompton

Edward W. Crompton 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).

  • Mobile transmitter/receiver
    Patent number: 4907290
    Abstract: A mobile transmitter/receiver is for use in a communication system comprising a plurality of fixed transmitters/receivers located at spaced apart positions in a terrestial area, each fixed transmitter/receiver operating on one or more of a plurality of radio frequency channels.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: March 6, 1990
    Assignee: Datatrak Limited
    Inventor: Edward W. Crompton