Patents by Inventor Cao Yunzhen

Cao Yunzhen 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 detecting antibodies to human immunodeficiency virus
    Patent number: 5122446
    Abstract: Disclosed herein is a method of screening mammals for antibodies to viral agents by collecting a urine sample from a mammal to be tested and assaying the sample for antibodies directed against the specific viral agent.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: June 16, 1992
    Assignee: New York University
    Inventors: Alvin Friedman-Kien, Cao Yunzhen, William Borkowsky