Patents by Inventor Peter J. Quadflieg

Peter J. Quadflieg 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).

  • Method and apparatus for producing an X-ray image by means of a photoconductor
    Patent number: 4752944
    Abstract: A method and apparatus for producing an X-ray exposure by means of a photoconductor. Photoconductor defect locations which appear as artefacts in the X-ray image are eliminated by subtracting a compensated dark discharge image from the X-ray image.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: June 21, 1988
    Assignee: U.S. Philips Corporation
    Inventors: Norbert Conrads, Walter Hillen, Peter J. Quadflieg, Ulrich Schiebel