Patents by Inventor Hoang G. Nguyen

Hoang G. Nguyen 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).

  • Transducer of the half-wave type with a piezoelectric polymer active element
    Patent number: 4473769
    Abstract: The invention relates to electromechanical transducers of the half-wave type in which the active element is a foil of piezoelectric polymer surrounded by electrodes.The invention provides a transducer in which the vibrating structure comprises, integral with the active piezoelectric polymer foil, at least one passive foil serving as a support for the electrodes.
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: September 25, 1984
    Assignee: Thomson-CSF
    Inventor: Hoang G. Nguyen