Patents by Inventor Susan C. C. Chen

Susan C. C. Chen 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).

  • Ionizing radiation dose monitor using silicon-on-sapphire transistor
    Patent number: 4431920
    Abstract: A reusable solid state device is disclosed which monitors ionizing radiat. The device is a silicon-on-sapphire n-channel MOS transistor having a back-channel leakage current which is proportional to total radiation dose. To return the monitor to its original reusable state, the drain-to-source transistor bias is reduced to zero while irradiating the device to an appropriate dose level.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: February 14, 1984
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Joseph R. Srour, Orlie L. Curtis, Siegfried Othmer, Susan C. C. Chen