Patents by Inventor Elke Kinzel

Elke Kinzel 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).

  • Method for preparing high-purity propylene carbonate and for simultaneously making passivated electrodes
    Patent number: 5437775
    Abstract: This invention relates to a method for preparing high-purity propylene carbonate and for simultaneously making passivated electrodes, wherein optionally prepurified propylene carbonate is exposed in a cell to an electric field between bare electrodes.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: August 1, 1995
    Assignee: Huls Aktiengesellschaft
    Inventors: Wolfgang Dittrich, Herbert Hill, Elke Kinzel