Patents by Inventor Johann Heiss

Johann Heiss 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).

  • Air separation of polysilicon
    Patent number: 6260712
    Abstract: A separation device which has at least one blower device and at least one deflector device can be used to separate large fragments of semiconductor material from small fragments of semiconductor material.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: July 17, 2001
    Assignee: Wacker-Chemie GmbH
    Inventors: Dirk Flottmann, Matthäus Schantz, Johann Heiss