Patents by Inventor Jocher Praefke

Jocher Praefke 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 PREPARING ETHYL TERT-BUTYL ETHER USING ETHANOL DEWATERED BY A MEMBRANE PROCESS
    Publication number: 20080187974
    Abstract: A process for preparing ethyl tert-butyl ether (ETBE) using low-water ethanol obtained by membrane dewatering at least two streams of relatively water-rich ethanol that have a different water content. by dewatering at membranes.
    Type: Application
    Filed: April 7, 2008
    Publication date: August 7, 2008
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Armin RIX, Frank Hoper, Jocher Praefke, Wilfried Bueschken