Patents by Inventor Vartan Ghazarossian

Vartan Ghazarossian 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).

  • Assay method employing fluorescent cell incorporative dye
    Patent number: 4748129
    Abstract: A method is provided for determining the presence in a sample of a member of a specific binding pair ("sbp member") consisting of ligand and its homologous receptor. The sample is combined in an aqueous medium with (1) a complementary sbp member wherein at least the sbp member or the complementary sbp member is bound to the surface of a cell and (2) a fuorescent agent capable of being incorporated into the cell. The presence of the sbp member is indicated by a change in fluorescence of the unseparated cell suspension as a result of agglutination of the cells.The present invention has particular application to blood typing, for example, for the determination of the presence of blood group antigens A, B, AB, O, and D (Rh.sub.o) and antibodies to such antigens.
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: May 31, 1988
    Assignee: Snytex (U.S.A.) Inc.
    Inventors: Chiu C. Chang, Vartan Ghazarossian, Edwin F. Ullman