Patents by Inventor Michael Liehrr

Michael Liehrr 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).

  • Coating system transparent to light and reflecting thermal radiation
    Patent number: 5976683
    Abstract: A system for coating a substrate with a thin film which has a high transmissivity in the visible spectrum and a high reflectivity in the thermal radiation spectrum. The film coating has at least one carbon layer crystallized with a diamond structure and doped with foreign atoms, the carbon layer being electrically conductive depending upon the doping concentration cA of the foreign atoms and having low radiation emissivity in the thermal radiation spectrum.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: November 2, 1999
    Assignee: Leybold Systems GmbH
    Inventors: Michael Liehrr, Hans-Georg Lotz