Patents by Inventor Paul W. Thorne

Paul W. Thorne 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).

  • Method for distinguishing return echoes from noise
    Patent number: 6819629
    Abstract: The present invention separates noise from actual return echoes of ultrasonic sound waves generated by the transducer of a sonar type fish finder by comparing the timing of generated ultrasonic pulses and received signals and disregarding signals when such timing does not match.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: November 16, 2004
    Assignee: MarCum Technologies, Inc.
    Inventors: Duane E. Cummings, Raphael J. Marzean, Paul W. Thorne
  • Method for distinguishing return echoes from noise
    Publication number: 20040202048
    Abstract: The present invention separates noise from actual return echoes of ultrasonic sound waves generated by the transducer of a sonar type fish finder by comparing the timing of generated ultrasonic pulses and received signals and disregarding signals when such timing does not match.
    Type: Application
    Filed: April 14, 2003
    Publication date: October 14, 2004
    Inventors: Duane E. Cummings, Raphael J. Marzean, Paul W. Thorne
  • Flasher-type fish finder with zoom feature
    Patent number: 6768701
    Abstract: A flasher-type fish finder is provided with a zoom feature that allows the user to select an area of interest within a body of water and then display representations of the objects located within that area of interest.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: July 27, 2004
    Inventors: Duane E. Cummings, Raphael J. Marzean, Paul W. Thorne