Patents by Inventor Donald A. Wessel

Donald A. Wessel 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).

  • Wafer carrier transport system interface
    Patent number: 4723799
    Abstract: The invention comprises a two, three or four short pin engagement system for engaging a wafer carrier for transporting semiconductor wafers by means of a three axis robotic transportation system for the purpose of processing semiconductor wafers in a factory. The multiple pin assembly allows a large reduction in travel distance with respect to prior art long rod engagement supports.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: February 9, 1988
    Assignee: Wollmann Engineering, Inc.
    Inventors: Andrew F. Wollmann, Donald A. Wessel