Patents by Inventor Gustav Gimpel

Gustav Gimpel 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 purification of organic compounds contaminated by dissolved metal compounds
    Patent number: 5367104
    Abstract: Process for the purification of organic compounds contaminated by dissolved metal compounds.The present invention relates to a process for the purification of organic compounds contaminated by dissolved metal compounds, by bringing the contaminated organic compound into contact with an ion exchanger resin, the functional group of which contains both a secondary amine group and a phosphonate salt radical and/or a phosphonic acid radical.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: November 22, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ernst I. Leupold, Udo Dettmeier, Gustav Gimpel, Walter Reimann