Patents by Inventor Holger F. Evele

Holger F. Evele 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).

  • Reflective porcelain enamel coating compositions
    Patent number: 6004894
    Abstract: The present invention provides a porcelain enamel coating composition for use in forming a coating composition upon a metal substrate having an infrared reflectivity of at least 50% at 2.5 .mu.-microns measured with a Perkin Elmer Lambda 19 UV/VIS/NIR spectrometer with a labsphere RSA-PE 19 reflectance spectroscopy accessory. The coating composition comprises a glass component and a separate and distinct addition of cerium oxide. Preferably, the coating composition comprises from about 0.20% to about 3.0% by weight of the cerium oxide.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: December 21, 1999
    Assignee: Ferro Corporation
    Inventors: William D. Faust, Holger F. Evele