Patents by Inventor Elie Pollak

Elie Pollak 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).

  • Devices for reading the quantities of electrical charges borne by a dielectric
    Patent number: 4673885
    Abstract: The invention relates to a device for reading the quantities of electrical charges borne by a dielectric sheet using a probe scanning the charged surface of the sheet and connected to an electronic circuit adapted to measure the quantities of charges induced on said probe. This electronic circuit comprises an operational transimpedance amplifier and an analog integrator reset to zero periodically by suitable circuitry.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: June 16, 1987
    Inventors: Jacques Lewiner, Georges Charpak, Elie Pollak