Patents by Inventor Gudrun Zschaschler

Gudrun Zschaschler 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 of making a vessel having a wall surface having a barrier coating
    Patent number: 5900285
    Abstract: A plastic vessel has a barrier coating comprising sequentially arranged barrier layers of organic polymer and of inorganic oxides, nitrides or oxynitrides. The barrier coating preferably has at least two inorganic barrier layers. The thickness of the inorganic barrier layers lies between 2 and 300 nm and the thickness of the organic barrier layer lies between 2 and 1000 nm. The total thickness of the layer packet should not exceed 0.1 mm.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: May 4, 1999
    Assignee: Schott Glaswerke
    Inventors: Marten Walther, Martin Heming, Michael Spallek, Gudrun Zschaschler
  • Vessel of plastic having a barrier coating and a method of producing the vessel
    Patent number: 5736207
    Abstract: A plastic vessel has a barrier coating comprising sequentially arranged barrier layers of organic polymer and of inorganic oxides, nitrides or oxynitrides. The barrier coating preferably has at least two inorganic barrier layers. The thickness of the inorganic barrier layers lies between 2 and 300 nm and the thickness of the organic barrier layer lies between 2 and 1000 nm. The total thickness of the layer packet should not exceed 0.1 mm.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: April 7, 1998
    Assignee: Schott Glaswerke
    Inventors: Marten Walther, Martin Heming, Michael Spallek, Gudrun Zschaschler