Patents by Inventor Robert A. Liebelt

Robert A. Liebelt 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).

  • Patent number: 5460970
    Abstract: A chromatographic method used to detect chronic alcohol usage and alcoholism and to monitor alcohol rehabilitation treatment; the method provides improved resolution of the Hb A.sub.1-AcH peak from the contiguous Hb A.sub.1c peak by means of a polyaspartic acid chromatographic column and a nonlinear buffer gradient; the resulting Hb A.sub.1-AcH peak is then evaluated to determine chronic alcohol usage which is indicative of alcoholism and which can be used to monitor alcohol rehabilitation treatment.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: October 24, 1995
    Assignee: Summa Health System
    Inventors: Edward B. Truitt, Jr., Susan E. Hazelett, Robert A. Liebelt