Patents by Inventor Joachim Sieckmann

Joachim Sieckmann 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 production of a product with high carbon content from waste soot
    Patent number: 4209323
    Abstract: Hydrous soot material containing a hydrocarbon is formed into molded articles which are then coked to form a high carbon content product.
    Type: Grant
    Filed: May 31, 1978
    Date of Patent: June 24, 1980
    Assignee: Verkaufsgesellschaft fur Teererzeugnisse
    Inventors: Heinz Echterhoff, Wilfried Gemmeke, Karl H. Koch, Erich Raulf, Joachim Sieckmann