Patents by Inventor Robert Magiera

Robert Magiera 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 preparation of anhydrous sodium sulfide
    Patent number: 6503474
    Abstract: A process is disclosed for the preparation of anhydrous sodium sulfide by heating sodium sulfide having a water content of from 38 to 40% in a contact drier in vacuo, the temperature of the solid to be dried being increased from approximately 20° C. at the solid inlet to ≧180° C. at the solid outlet.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: January 7, 2003
    Assignee: Degussa AG
    Inventors: Robert Magiera, Hans Christian Alt, Gerhard Rasig, Jörg Münzenberg, Christoph Batz-Sohn, Ralf Goedecke, Ulrich Deschler, Volker Knapp, Karl-Heinz Rützel