Patents by Inventor Dirk Liese

Dirk Liese 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).

  • Lubricant coated sheet metal with improved deformation properties
    Patent number: 7727942
    Abstract: The invention relates to sheet metal or a sheet metal blank provided with a lubricant coating, especially an anti-corrosion oil of the Pre-Lube or Dry Lube variety. The sheet metal or sheet metal blank comprises a layer which is formed by applying a solution containing an organic phosphoric acid ester to the metal surface of the sheet metal. Sheet metal provided with said coating has excellent tribological properties.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: June 1, 2010
    Assignees: TryssenKrupp Stahl AG, Deutsche BP AG
    Inventors: Reinhard Wormuth, Dirk Liese
  • Lubricant coated sheet metal with improved deformation properties
    Publication number: 20060100112
    Abstract: The invention relates to sheet metal or a sheet metal blank provided with a lubricant coating, especially an anti-corrosion oil of the Pre-Lube or Dry Lube variety. The sheet metal or sheet metal blank comprises a layer which is formed by applying a solution containing an organic phosphoric acid ester to the metal surface of the sheet metal. Sheet metal provided with said coating has excellent tribological properties.
    Type: Application
    Filed: December 2, 2003
    Publication date: May 11, 2006
    Inventors: Reinhard Wormuth, Dirk Liese