Patents by Inventor Limin Zheng

Limin Zheng 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).

  • Methods to produce high levels of C. difficile toxins
    Patent number: 6939548
    Abstract: The present invention relates to the field of medical immunology and further to pharmaceutical compositions, methods of making and methods of use of vaccines. More specifically this invention relates to recombinant proteins derived from the genes encoding Clostridium difficile toxin A and toxin B, and their use in an active vaccine against C. difficile.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: September 6, 2005
    Assignee: Techlab, Inc.
    Inventors: Tracy D. Wilkins, David M. Lyerly, J. Scott Moncrief, Limin Zheng, Carol Phelps
  • Recombinant toxin A/toxin B vaccine against Clostridium difficile
    Patent number: 6733760
    Abstract: The present invention relates to the field of medical immunology and further to pharmaceutical compositions, methods of making and methods of use of vaccines. More specifically this invention relates to recombinant proteins derived from the genes encoding Clostridium difficile toxin A and toxin B, and their use in an active vaccine against C. difficile.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: May 11, 2004
    Assignee: Techlab, Inc.
    Inventors: Tracy D. Wilkins, David M. Lyerly, J. Scott Moncrief, Limin Zheng, Carol Phelps
  • Methods to produce high levels of C. difficile toxins
    Publication number: 20030129198
    Abstract: The present invention relates to the field of medical immunology and further to pharmaceutical compositions, methods of making and methods of use of vaccines. More specifically this invention relates to recombinant proteins derived from the genes encoding Clostridium difficile toxin A and toxin B, and their use in an active vaccine against C. difficile.
    Type: Application
    Filed: August 15, 2002
    Publication date: July 10, 2003
    Inventors: Tracy D. Wilkins, David M. Lyerly, J. Scott Moncrief, Limin Zheng, Carol Phelps