Patents by Inventor James G. Liebau

James G. Liebau 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).

  • Selective equalization radiography
    Patent number: 5070519
    Abstract: An equalization radiography system automatically identifies the lung field in a pre-scan and then carries out an imaging scan in which it equalizes the X-ray exposure but only outside the lung field.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: December 3, 1991
    Assignee: Hologic, Inc.
    Inventors: Jay A. Stein, Donald B. Plewes, Russell J. Gershman, James G. Liebau, John N. Williams