Patents by Inventor Dirk Willuhn

Dirk Willuhn 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).

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    Patent number: D357675
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: April 25, 1995
    Assignee: International Business Machines Corporation
    Inventors: Wolfgang Guber, Wolfgang Fischer, Dirk Willuhn, Ulrich Hengstler, Berthold Gerber, Jan Barthel, Wilfried Bruegmann