Patents by Inventor Lothar Siewerdt

Lothar Siewerdt 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).

  • High voltage cable
    Patent number: 4294504
    Abstract: A high voltage cable wherein each conductive element comprises a flexible inner conductor, an insulating sheath within which the inner conductor moves freely, a flexible outer conductor encasing the insulating sheath and an insulating jacket which encases the outer and inner conductors. The cable may consist of one conductive element or a plurality of conductive elements distributed symmetrically in groups over a circular cross-sectional area.
    Type: Grant
    Filed: July 13, 1979
    Date of Patent: October 13, 1981
    Assignee: Kernforschungszentrum Karlsruhe GmbH
    Inventor: Lothar Siewerdt