Patents by Inventor Jay E. Purdy

Jay E. Purdy 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).

  • Transfection of enteric parasites
    Patent number: 5891634
    Abstract: The invention provides methods for expressing foreign genes in enteric protozoa. This transfection system was established using a gene ligated to the 5' and 3' flanking DNA regions of a protein-encoding gene from an enteric protozoa. The present invention also provides such transformed enteric protozoa, vaccines produced therefrom and foreign or altered proteins expressed in the same. The ability to introduce and express genes in amebae will now permit both genetic analysis and modification of the virulence of this organism, which remains a serious threat to world health and will facilitate basic research towards the control of this parasite.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: April 6, 1999
    Assignee: The University of Virginia Patent Foundation
    Inventors: William A. Petri, Jr., R. Randolph Vines, Jay E. Purdy, Barbara J. Mann
  • Transfection of enteric parasites
    Patent number: 5665565
    Abstract: The invention provides methods for expressing foreign genes in enteric protozoa. This transfection system was established using a gene ligated to the 5' and 3' flanking DNA regions of a protein-encoding gene from an enteric protozoa. The present invention also provides such transformed enteric protozoa, vaccines produced therefrom and foreign or altered proteins expressed in the same. The ability to introduce and express genes in amebae will now permit both genetic analysis and modification of the virulence of this organism, which remains a serious threat to world health and will facilitate basic research towards the control of this parasite.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: September 9, 1997
    Assignee: The University of Virginia Patent Foundation
    Inventors: William A. Petri, Jr., R. Randolph Vines, Jay E. Purdy, Barbara J. Mann