Patents by Inventor Hans Hein Steger

Hans Hein Steger 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).

  • Solvent extraction process
    Patent number: 7214256
    Abstract: A circuit configuration for a metal solvent extraction plant comprising: A) an extraction section for extracting metal ions from an aqueous leach solution containing the metal ions with an organic solvent solution containing at least one metal extraction reagent, wherein the extraction section consists of three countercurrent extraction stages; and B) a stripping section consisting of one stripping stage for stripping the metal ions from the metal extraction reagent.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: May 8, 2007
    Assignee: Cognis Corporation
    Inventors: Gary A. Kordosky, Hans Hein Steger
  • Solvent extraction process
    Publication number: 20040103756
    Abstract: A circuit configuration for a metal solvent extraction plant comprising:
    Type: Application
    Filed: July 31, 2003
    Publication date: June 3, 2004
    Inventors: Gary A. Kordosky, Hans Hein Steger