Patents by Inventor Jobst Kerspe

Jobst Kerspe 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).

  • Double-wall insulated container
    Patent number: 6168040
    Abstract: A double-wall insulated container has an internal wall and an external wall enclosing an intermediate space which is under partial vacuum. A foam glass granulate fills the intermediate space and supports the walls. The walls may be metal or plastic and sealed with a vapor barrier as necessary to make the space leak-proof. The container may be styled as a Dewar flask for food or beverages, or larger to make it suitable for a household appliance such as a refrigerator.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: January 2, 2001
    Assignee: Isovac GmbH
    Inventors: Karl Heinz Sautner, Jobst Kerspe