Patents by Inventor David J. Wolfe

David J. Wolfe 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 for making duplicate xeroradiographic images
    Patent number: 4583489
    Abstract: A xerographic system which makes two, or more, copies for each exposure by developing the image twice. This can be done by either providing two developing, drying and transfer stations within the system, or by reversing the direction of the exposed plate so that it is processed twice by these stations. This technique is possible because a large part of the image remains on the plate after the first development cycle.
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: April 22, 1986
    Assignee: Xerox Corporation
    Inventors: Thomas L. Thourson, David J. Wolfe