Patents by Inventor Andreas Westerfeld

Andreas Westerfeld 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).

  • Method for producing a flat steel product provided with a metal protective layer by way of hot dip coating
    Patent number: 9096919
    Abstract: Optimal wetting and adhesion of the hot-dip coating by way of pre-oxidation in a DFF pre-heating furnace and humidification of the annealing atmosphere in a holding zone is achieved in a hot dip galvanised flat steel product.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: August 4, 2015
    Assignee: ThyssenKrupp Steel Europe AG
    Inventors: Marc Blumenau, Oliver Brehm, Michael Peters, Rudolf Schoenenberg, Andreas Westerfeld, Martin Norden
  • Method for Producing a Flat Steel Product Provided with a Metal Protective Layer by Way of Hot Dip Coating
    Publication number: 20140251505
    Abstract: Optimal wetting and adhesion of the hot-dip coating by way of pre-oxidation in a DFF pre-heating furnace and humidification of the annealing atmosphere in a holding zone is achieved in a hot dip galvanised flat steel product.
    Type: Application
    Filed: July 5, 2012
    Publication date: September 11, 2014
    Applicant: THYSSENKRUPP STEEL EUROPE AG
    Inventors: Marc Blumenau, Oliver Brehm, Michael Peters, Rudolf Schoenenberg, Andreas Westerfeld, Martin Norden