Patents by Inventor Jörg Schielke

Jörg Schielke 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).

  • SiO2-glass bulb with at least one current lead-in, process for producing a gas-tight connection between them, and their use in a gas-discharge lamp
    Patent number: 6525475
    Abstract: An SiO2-glass bulb with at least one current lead-in made of a gas-tight composite material, such that the composite material consists of a noble metal with a melting point >1,700° C. and SiO2 and is at least partially coated with a layer of SiO2. The noble metal and the SiO2 are homogeneously distributed in the composite material. The noble metal content of the composite material is ≧10 vol. % to ≦50 vol. %, and the SiO2 coating covers the composite material at least in the region of the connection with the SiO2-glass bulb.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: February 25, 2003
    Assignee: W. C. Heraeus GmbH & Co. KG
    Inventors: Friedhold Schölz, David Lupton, Jörg Schielke, Holger Zingg