Patents by Inventor Albert H. M. T. Van Heertum

Albert H. M. T. Van Heertum 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).

  • Piperazine derivatives
    Patent number: 4250176
    Abstract: Novel 1-substituted 4-(diarylmethyl)piperazine derivatives having antianaphylactic and antihistaminic properties, in which the 1-substituent is optionally substituted 2(3H) benzimidazol-2-one, 2(3H) benzothiazol-2-one, or 2(3H) benzoxazol-2-one.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: February 10, 1981
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Jan Vandenberk, Ludo E. J. Kennis, Marcel J. M. C. Van der Aa, Albert H. M. T. Van Heertum