Patents by Inventor Peter Gerlach

Peter Gerlach 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 pulling a silicon single crystal
    Patent number: 5487354
    Abstract: A method for pulling a silicon single crystal has the single crystal being pulled at a speed defined as maximum pulling speed in the vertical direction with respect to a silicon melt held in a crucible. The value of the maximum pulling speed is approximately proportional to the axial temperature gradient in the growing single crystal.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: January 30, 1996
    Assignee: Wacker-Chemitronic Gesellschaft fuer Eletronik-Grundstoffe mbH
    Inventors: Wilfried von Ammon, Erich Dornberger, Hans Oelkrug, Peter Gerlach, Franz Segieth