Patents by Inventor Andre D. Chevrier

Andre D. Chevrier 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).

  • Ultrasonic testing using synthetic impulses
    Patent number: 6343510
    Abstract: An ultrasonic testing method and apparatus which includes synthesizing impulse response images using specially constructed waveforms. The apparatus includes a waveform generator, transducers for transmitting and receiving the ultrasonic signals and a digital signal processor or computer for efficiently processing the captured signal data to form the desired impulse response signals.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: February 5, 2002
    Assignee: VN Instruments Limited
    Inventors: Ian A. Neeson, Leon C. Vandervalk, Andre D. Chevrier