Patents by Inventor Hans Wienand

Hans Wienand 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).

  • Refractory batch, in particular for the production of a shaped body, and process for producing the shaped body
    Patent number: 6645425
    Abstract: The invention relates to a refractory batch containing at least one refractory metal oxide component, at least one binder component, such as resin or pitch, if appropriate antioxidants, at least one carbon carrier, such as soot and/or graphite, and reinforcement fibers which are formed from a stainless steel material, which at the temperatures of use forms a coat of the refractory metal oxide on its surface, and to a shaped body made from the batch and to a process for producing the shaped body.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: November 11, 2003
    Assignee: Refractechnik Holding GmbH
    Inventors: Hans Wienand, Helge Jansen, Peter Bartha