Patents by Inventor Axel Giehr

Axel Giehr 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).

  • Process for the reprocessing of carbon containing wastes
    Patent number: 4982027
    Abstract: This invention relates to an improved process for the reprocessing of carbon containing wastes by pretreating the same thermally in the presence or absence of hydrogen, followed by hydrogenation of the pretreated material at elevated temperature and at least 200 bar hydrogen pressure.
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: January 1, 1991
    Assignee: Rheinische Braunkohlenwerke AG
    Inventors: Joachim Korff, Axel Giehr, Karl-Heinz Keim, Kurt Erdt