Patents by Inventor Jean Lapie

Jean Lapie 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).

  • Generator for controlling an ultrasonic transducer
    Patent number: 3938071
    Abstract: A generator for controlling a transducer by means of sinusoidal wave trains is constituted by the association in series of a generator for producing wave trains formed by a whole number of half-cycles of periodic signals and of a filter which is tuned to the frequency of the periodic signals.
    Type: Grant
    Filed: June 5, 1974
    Date of Patent: February 10, 1976
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Roger Berger, Claude Estienne, Jean Lapie