Patents by Inventor Kwasi A. Ohemeng

Kwasi A. Ohemeng 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).

  • Method for the treatment of malaria
    Patent number: 5206236
    Abstract: A method for treating malaria which comprises to an afflicted host patient a therapeutically effective amount of a compound have the structure of formula I: ##STR1## wherein X is O or NH; R.sub.1 is H or two R.sub.1 groups on the same amidine group together represents --(CH.sub.2).sub.m --, wherein m=2, 3 or 4; R.sub.2 is H, NH.sub.2, Cl, NO.sub.2 ; R.sub.3 is H, CH.sub.3 or CH.sub.2 CH.sub.3 and n=2-6 or a pharmaceutically acceptable salt thereof provided that when X is O, both R.sub.2 and both R.sub.3 can not be H.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: April 27, 1993
    Inventors: Richard R. Tidwell, J. Dieter Geratz, James E. Hall, Dennis E. Kyle, Max Grogl, Kwasi A. Ohemeng
  • Method for treating leishmaniasis
    Patent number: 5202320
    Abstract: This invention relates to a method for treating leishmaniasis which comprises administering to an afflicted host patient, a therapeutically effective amount of a compound having the following structure; ##STR1## wherein X is O or NH; R.sub.1 is H or two R.sub.1 of the same amidine group together represent --(CH.sub.2).sub.m -- wherein m=2, 3 or 4; R.sub.2 is H, NH.sub.2, OCH.sub.3, Cl or NO.sub.2 ; R.sub.3 is H, CH.sub.3 or CH.sub.2 CH.sub.3 and n=2-6 or a pharmaceutical acceptable salt thereof provided that X is O both R.sub.2 and both R.sub.3 cannot be H.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: April 13, 1993
    Inventors: Richard R. Tidwell, J. Dieter Geratz, James E. Hall, Dennis E. Kyle, Max Grogl, Kwasi A. Ohemeng
  • Methods for treating Giardia lamblia
    Patent number: 4963589
    Abstract: This invention relates to a method for treating giardiasis with an aromatic diamidine compound.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: October 16, 1990
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Richard R. Tidwell, Dieter J. Geratz, Kwasi A. Ohemeng
  • Diamidines and bis(imidazolines) for the treatment of and prophylaxis against pneumocystis carinii pneumonia
    Patent number: 4933347
    Abstract: Certain new diamidine and bis(imidazoline) compounds having activity against Pneumocystis carinii pneumonia are disclosed along with formulations and methods for treating Pneumocystis carinii pneumonia employing said compounds.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: June 12, 1990
    Assignee: University of North Carolina at Chapel Hill
    Inventors: Richard R. Tidwell, Dieter J. Geratz, Kwasi A. Ohemeng, James E. Hall