Patents by Inventor Lawrence M Ballas

Lawrence M Ballas 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).

  • Aminoanthraquinone derivatives to combat multidrug resistance
    Patent number: 5436243
    Abstract: Potentiating agents inhibit the development of multidrug resistance, reduce drug-resistance in drug-resistant tumors, or sensitize tumors to antineoplastic drugs, thereby potentiating the effect of antineoplastic agents. The potentiating agents are aminoanthraquinones, preferably 1,4-bis(N-substituted) amino anthraquinones, and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: July 25, 1995
    Assignees: Research Triangle Institute Duke University, Pharmaceuticals Corporation
    Inventors: Clifford W. Sachs, Robert L. Fine, Lawrence M Ballas, R. Ivy Carroll, Robert Bell