Patents by Inventor Stefan Biethmann

Stefan Biethmann 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).

  • Procedure to mark groove traces of grooves induced by laser
    Publication number: 20030019243
    Abstract: The invention concerns a procedure to mark groove traces of laser-induced grooves of glass components by optical visualization.
    Type: Application
    Filed: June 17, 2002
    Publication date: January 30, 2003
    Inventors: Stefan Biethmann, Ludger Terstriep, Dirk Hauer, Thomas Schmidt, Hartmut Glenewinkel
  • Process for the production of prestressed or bent glass elements
    Publication number: 20010018836
    Abstract: The invention relates to a process for the production of prestressed and/or bent glass elements.
    Type: Application
    Filed: December 27, 2000
    Publication date: September 6, 2001
    Inventors: Thomas Schmidt, Frank Elstermeier, Stefan Biethmann, Christoph Hermanns, Markus Schuster