Patents by Inventor Chia-Hwa Chang

Chia-Hwa Chang 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).

  • Lactobacilli expressing biologically active polypeptides and uses thereof
    Patent number: 7833791
    Abstract: The present invention relates to Lactobacillus species recombinantly altered to express a biologically active protein. The invention also related to methods of providing the bacteria to the vagina.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: November 16, 2010
    Assignee: Osel, Inc.
    Inventors: Chia-Hwa Chang, David A. Simpson, Theresa Li-Yun Chang, Qiang Xu, John A. Lewicki
  • Surface expression of biologically active proteins in bacteria
    Patent number: 7754467
    Abstract: Methods and compositions for targeting heterologous polypeptides to bacterial cell walls are provided.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: July 13, 2010
    Assignee: Osel, Inc.
    Inventors: Chia-Hwa Chang, Xiaowen Liu, John A. Lewicki, Qiang Xu
  • LACTOBACILLI EXPRESSING BIOLOGICALLY ACTIVE POLYPEPTIDES AND USES THEREOF
    Publication number: 20090148408
    Abstract: The present invention relates to Lactobacillus species recombinantly altered to express a biologically active protein. The invention also related to methods of providing the bacteria to the vagina.
    Type: Application
    Filed: November 9, 2007
    Publication date: June 11, 2009
    Applicant: Osel, Inc.
    Inventors: Chia-Hwa Chang, David A. Simpson, Theresa Li-Yun Chang, Qiang Xu, John A. Lewicki
  • Lactobacilli expressing biologically active polypeptides and uses thereof
    Patent number: 7312076
    Abstract: The present invention relates to Lactobacillus species recombinantly altered to express a biologically active protein. The invention also related to methods of providing the bacteria to the vagina.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: December 25, 2007
    Assignee: Osel, Inc.
    Inventors: Chia-Hwa Chang, David A. Simpson, Theresa Li-Yun Chang, Qiang Xu, John A. Lewicki
  • LACTOBACILLI EXPRESSING BIOLOGICALLY ACTIVE POLYPEPTIDES AND USES THEREOF
    Publication number: 20070117197
    Abstract: The present invention relates to Lactobacillus species recombinantly altered to express a biologically active protein. The invention also related to methods of providing the bacteria to the vagina.
    Type: Application
    Filed: January 5, 2007
    Publication date: May 24, 2007
    Applicant: Osel, Inc.
    Inventors: Chia-Hwa Chang, David Simpson, Theresa Chang, Qiang Xu, John Lewicki
  • Lactobacilli expressing biologically active polypeptides and uses thereof
    Patent number: 7179458
    Abstract: The present invention relates to Lactobacillus species recombinantly altered to express a biologically active protein. The invention also related to methods of providing the bacteria to the vagina.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: February 20, 2007
    Assignee: Osel, Inc.
    Inventors: Chia-Hwa Chang, David A. Simpson, Theresa Li-Yun Chang, Qiang Xu, John A. Lewicki
  • Surface expression of biologically active proteins in bacteria
    Publication number: 20050003510
    Abstract: Methods and compositions for targeting heterologous polypeptides to bacterial cell walls are provided.
    Type: Application
    Filed: January 28, 2004
    Publication date: January 6, 2005
    Applicant: OSEL, INC.
    Inventors: Chia-Hwa Chang, Xiaowen Liu, John Lewicki, Qiang Xu
  • Lactobacilli expressing biologically active polypeptides and uses thereof
    Publication number: 20030228297
    Abstract: The present invention relates to Lactobacillus species recombinantly altered to express a biologically active protein. The invention also related to methods of providing the bacteria to the vagina.
    Type: Application
    Filed: March 6, 2003
    Publication date: December 11, 2003
    Applicant: Osel, Inc.
    Inventors: Chia-Hwa Chang, David A. Simpson, Theresa Li-Yun Chang, Qiang Xu, John A. Lewicki