Patents by Inventor Frederick A. Elder

Frederick A. Elder 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).

  • Processes for preparing chalcogenide alloys
    Patent number: 5035857
    Abstract: A process for the preparation of chalcogenide alloys which comprises crystallizing a chalcogenide alloy, grinding and pelletizing the crystallized product, and evaporating the alloy on, for example, a supporting substrate to form a photoreceptor.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: July 30, 1991
    Assignee: Xerox Corporation
    Inventors: Lawrence E. Kowalczyk, Santokh S. Badesha, Paul F. Zukoski, Monroe J. Hordon, Steven M. Sterling, Barry A. Lees, Frederick A. Elder, Roger W. LaForce
  • Processes for preparing chalcogenide alloys
    Patent number: 5002734
    Abstract: A process for the preparation of chalcogenide alloys which comprises crystallizing a chalcogenide alloy, grinding and pelletizing the crystallized product, and evaporating the alloy on, for example, a supporting substrate to form a photoreceptor.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: March 26, 1991
    Assignee: Xerox Corporation
    Inventors: Lawrence E. Kowalczyk, Santokh S. Badesha, Paul F. Zukoski, Monroe J. Hordon, Steven M. Sterling, Barry A. Lees, Frederick A. Elder, Roger W. LaForce