Patents by Inventor Klaus R. Letsch

Klaus R. Letsch 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).

  • Vacuum carafe
    Patent number: 4754888
    Abstract: A thermos carafe with an inner container surrounded by a casing, whereby the inner container and the casing at the top have an opening which can be closed by a plug. The plug and/or the opening are shaped in such a way that it is possible to fill and empty the inner container, while the plug is left in the opening.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: July 5, 1988
    Assignee: S.A.P. Scandinavian American Partnership
    Inventors: Klaus R. Letsch, Michael C. Letsch