Patents by Inventor Yolanda L. Vidal

Yolanda L. Vidal 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).

  • Process for obtaining an antigenic reagent useful for the indirect determination of Salmonella typhi
    Patent number: 5405754
    Abstract: The invention described herein consists of a process for preparing an antigenic reagent useful for the indirect determination of Salmonella typhi, the organism that is the causal agent of typhoid fever (TF). The invention consists on the following steps: to grow Salmonella typhi in a culture medium, characterized by containing a free-iron chelator, which generates a specific S. typhi outer membrane protein (OMP) pattern, OMPs that are used as a selective antigen for the detection of specific serum antibodies, by an immunoassay technique (ELISA).
    Type: Grant
    Filed: March 21, 1991
    Date of Patent: April 11, 1995
    Assignee: Universidad Nacional Autonoma de Mexico
    Inventors: Edmundo Calva-Mercado, Guillermo M. Ruiz Palacios, Antonio V. Rodriguez, Yolanda L. Vidal