Patents by Inventor Adalbert Cramer

Adalbert Cramer 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).

  • Lactic acid extraction and purification process
    Patent number: 5641406
    Abstract: The subject of the invention is a process for extracting pure lactic acid from fermentation liquors by ion exchange chromatography on a strongly acidic cation exchanger, preferably in H.sup.+ form. In a first step, the NH.sub.4 lactate coming from the fermentation is converted into the free acid by genuine ion exchange. This conversion is preferably effected on a weakly acidic cation exchanger in H.sup.+ form.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: June 24, 1997
    Assignee: Vogelbusch Gesellschaft m.b.H.
    Inventors: Schahroch Sarhaddar, Anton Scheibl, Emmerich Berghofer, Adalbert Cramer