Patents by Inventor Duzhang Zhu

Duzhang Zhu 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).

  • Patent number: 7658931
    Abstract: Mutant cholera holotoxins having single or double amino acid substitutions or insertions have reduced toxicity compared to the wild-type cholera holotoxin. The mutant cholera holotoxins are useful as adjuvants in antigenic compositions to enhance the immune response in a vertebrate host to a selected antigen from a pathogenic bacterium, virus, fungus, or parasite, a cancer cell, a tumor cell, an allergen, or a self-molecule.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: February 9, 2010
    Assignees: Wyeth Holdings Corporation, The United States of America, as represented by the Uniformed Services University of Health Sciences
    Inventors: Bruce A. Green, Randall K. Holmes, Michael G. Jobling, Duzhang Zhu
  • Publication number: 20080311144
    Abstract: Mutant cholera holotoxins having single or double amino acid substitutions or insertions have reduced toxicity compared to the wild-type cholera holotoxin. The mutant cholera holotoxins are useful as adjuvants in antigenic compositions to enhance the immune response in a vertebrate host to a selected antigen from a pathogenic bacterium, virus, fungus, or parasite, a cancer cell, a tumor cell, an allergen, or a self-molecule.
    Type: Application
    Filed: December 19, 2007
    Publication date: December 18, 2008
    Applicants: Wyeth Holdings Corporation, The Gov. of the USA, as represented by the Uniformed Services University of Health Sciences
    Inventors: Bruce A. Green, Randall K. Holmes, Michael G. Jobling, Duzhang Zhu
  • Publication number: 20080213303
    Abstract: Mutant cholera holotoxins comprising a cholera toxin subunit A having single amino acid substitutions in the amino acid positions 16 or 72 or a double amino acid substitution in the amino acid positions 16 and 68 or 68 and 72 have reduced toxicity compared to the wild-type cholera holotoxin. The mutant cholera holotoxins are useful as adjuvants in immunogenic compositions to enhance the immune response in a vertebrate host to a selected antigen from a pathogenic bacterium, virus, fungus, or parasite, a cancer cell, a tumor cell, an allergen, or a self-molecule.
    Type: Application
    Filed: October 22, 2007
    Publication date: September 4, 2008
    Applicants: Wyeth Holdings Corporation, The Regents of the University of Colorado, A Body Corporate Health Science Center
    Inventors: Bruce A. Green, Randall K. Holmes, Michael G. Jobling, Duzhang Zhu
  • Patent number: 7361355
    Abstract: Mutant cholera holotoxins comprising a cholera toxin subunit A having single amino acid substitutions in the amino acid positions 16 or 72 or a double amino acid substitution in the amino acid positions 16 and 68 or 68 and 72 have reduced toxicity compared to the wild-type cholera holotoxin. The mutant cholera holotoxins are useful as adjuvants in immunogenic compositions to enhance the immune response in a vertebrate host to a selected antigen from a pathogenic bacterium, virus, fungus, or parasite, a cancer cell, a tumor cell, an allergen, or a self-molecule.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: April 22, 2008
    Assignees: Wyeth Holdings Corporation, The Regents of the University of Colorado, A Body Corporate
    Inventors: Bruce A. Green, Randall K. Holmes, Michael G. Jobling, Duzhang Zhu
  • Patent number: 7332174
    Abstract: Mutant cholera holotoxins having single or double amino acid substitutions or insertions have reduced toxicity compared to the wild-type cholera holotoxin. The mutant cholera holotoxins are useful as adjuvants in antigenic compositions to enhance the immune response in a vertebrate host to a selected antigen from a pathogenic bacterium, virus, fungus, or parasite, a cancer cell, a tumor cell, an allergen, or a self-molecule.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: February 19, 2008
    Assignees: Wyeth Holdings Corporation, The United States of America as represented by the Uniformed Services University of Health Sciences
    Inventors: Bruce A. Green, Randall K. Holmes, Michael G. Jobling, Duzhang Zhu
  • Patent number: 7285281
    Abstract: Mutant cholera holotoxins comprising a cholera toxin subunit A having single amino acid substitutions in the amino acid positions 16 or 72 or a double amino acid substitution in the amino acid positions 16 and 68 or 68 and 72 have reduced toxicity compared to the wild-type cholera holotoxin. The mutant cholera holotoxins are useful as adjuvants in immunogenic compositions to enhance the immune response in a vertebrate host to a selected antigen from a pathogenic bacterium, virus, fungus, or parasite, a cancer cell, a tumor cell, an allergen, or a self-molecule.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: October 23, 2007
    Assignees: Wyeth Holdings Corporation, The Regents of the University of Colorado, A Body Corporate
    Inventors: Bruce A. Green, Randall K. Holmes, Michael G. Jobling, Duzhang Zhu
  • Publication number: 20070122428
    Abstract: Mutant cholera holotoxins having single or double amino acid substitutions or insertions have reduced toxicity compared to the wild-type cholera holotoxin. The mutant cholera holotoxins are useful as adjuvants in antigenic compositions to enhance the immune response in a vertebrate host to a selected antigen from a pathogenic bacterium, virus, fungus, or parasite, a cancer cell, a tumor cell, an allergen, or a self-molecule.
    Type: Application
    Filed: December 22, 2006
    Publication date: May 31, 2007
    Applicants: Wyeth Holdings Corporation, University of Health Sciences
    Inventors: Bruce Green, Randall Holmes, Michael Jobling, Duzhang Zhu
  • Publication number: 20070116715
    Abstract: Mutant cholera holotoxins comprising a cholera toxin subunit A having single amino acid substitutions in the amino acid positions 16 or 72 or a double amino acid substitution in the amino acid positions 16 and 68 or 68 and 72 have reduced toxicity compared to the wild-type cholera holotoxin. The mutant cholera holotoxins are useful as adjuvants in immunogenic compositions to enhance the immune response in a vertebrate host to a selected antigen from a pathogenic bacterium, virus, fungus, or parasite, a cancer cell, a tumor cell, an allergen, or a self-molecule.
    Type: Application
    Filed: December 15, 2006
    Publication date: May 24, 2007
    Applicants: Wyeth, University of Colorado
    Inventors: Bruce Green, Randall Holmes, Michael Jobling, Duzhang Zhu
  • Publication number: 20040181036
    Abstract: Mutant cholera holotoxins comprising a cholera toxin subunit A having single amino acid substitutions in the amino acid positions 16 or 72 or a double amino acid substitution in the amino acid positions 16 and 68 or 68 and 72 have reduced toxicity compared to the wild-type cholera holotoxin. The mutant cholera holotoxins are useful as adjuvants in immunogenic compositions to enhance the immune response in a vertebrate host to a selected antigen from a pathogenic bacterium, virus, fungus, or parasite, a cancer cell, a tumor cell, an allergen, or a self-molecule.
    Type: Application
    Filed: December 4, 2003
    Publication date: September 16, 2004
    Inventors: Bruce A Green, Randall K. Holmes, Michael G. Jobling, Duzhang Zhu
  • Publication number: 20040176571
    Abstract: Mutant cholera holotoxins having single or double amino acid substitutions or insertions have reduced toxicity compared to the wild-type cholera holotoxin. The mutant cholera holotoxins are useful as adjuvants in antigenic compositions to enhance the immune response in a vertebrate host to a selected antigen from a pathogenic bacterium, virus, fungus, or parasite, a cancer cell, a tumor cell, an allergen, or a self-molecule.
    Type: Application
    Filed: December 4, 2003
    Publication date: September 9, 2004
    Applicant: Wyeth Holdings Corporation
    Inventors: Bruce A. Green, Randall K. Holmes, Michael G. Jobling, Duzhang Zhu