Patents by Inventor Stephan Rungwerth

Stephan Rungwerth 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).

  • Copper-steel composite lead wire and use in incandescent filament electric lamps
    Patent number: 5528105
    Abstract: The subject invention relates to a copper-steel composite wire suitable for use as inner lead wires in lamp applications. The subject copper-steel composite wire comprises a steel core having a thick copper cladding on the outside thereof such that the composite lead wire exhibits at least 30% IACS electrical conductivity. The application further relates to the use of the subject composite wire in incandescent lamp applications.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: June 18, 1996
    Assignee: General Electric Company
    Inventors: Walter K. Brinn, Charles W. Cox, Stephan Rungwerth, Milan R. Vukcevich