Patents by Inventor Robert Hettier

Robert Hettier 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).

  • Glass-metal feedthrough
    Patent number: 11217440
    Abstract: A glass-metal feedthrough consists of an external conductor, a glass material and an internal conductor. The internal conductor has a coefficient of expansion ?internal, the glass material has a coefficient of expansion ?glass, and the external conductor has a coefficient of expansion ?external. The coefficient of expansion of the internal conductor ?internal is greater than the coefficient of expansion of the glass material ?glass and the coefficient of expansion of the external conductor ?external is at least 2 ppm/K, such as at least 4 ppm/K, greater than the coefficient of expansion of the glass material ?glass in the temperature range of 20° C. to the glass transformation temperature.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: January 4, 2022
    Assignee: Schott AG
    Inventor: Robert Hettier