Patents by Inventor Chang Ji Zheng

Chang Ji 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).

  • Antibacterial pharmaceutical composition comprising extract and active compounds isolated therefrom
    Patent number: 8574556
    Abstract: The present invention relates to an antibacterial pharmaceutical composition comprising an Aceriphyllum rossii extract, and aceriphyllic acid A and 3-oxo-12-oleanen-27-oic acid isolated therefrom. The Aceriphyllum rossii extract of the present invention, and aceriphyllic acid A and 3-oxo-12-oleanen-27-oic acid isolated therefrom have strong antibacterial activities against Staphylococcus aureus, methicillin-resistant S. aureus, quinolone-resistant S. aureus, Acinetobacter calcoaceticus, Micrococcus luteus, Bacillus subtilis or Streptococcus mutans, Propionibacterium acnes, thereby being used for the prevention or treatment of pathogenic bacterial and resistant bacterial infections, cariogenic bacterial and acne bacterial infections.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: November 5, 2013
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Won Gon Kim, Chang Ji Zheng, Ki Young Kim, Mi Jin Sohn
  • ANTIBACTERIAL PHARMACEUTICAL COMPOSITION COMPRISING ACERIPHYLLUM ROSSII EXTRACT AND ACTIVE COMPOUNDS ISOLATED THEREFROM
    Publication number: 20110223118
    Abstract: The present invention relates to an antibacterial pharmaceutical composition comprising an Aceriphyllum rossii extract, and aceriphyllic acid A and 3-oxo-12-oleanen-27-oic acid isolated therefrom. The Aceriphyllum rossii extract of the present invention, and aceriphyllic acid A and 3-oxo-12-oleanen-27-oic acid isolated therefrom have strong antibacterial activities against Staphylococcus aureus, methicillin-resistant S. aureus, quinolone-resistant S. aureus, Acinetobacter calcoaceticus, Micrococcus luteus, Bacillus subtilis or Streptococcus mutans, Propionibacterium acnes, thereby being used for the prevention or treatment of pathogenic bacterial and resistant bacterial infections, cariogenic bacterial and acne bacterial infections.
    Type: Application
    Filed: November 12, 2008
    Publication date: September 15, 2011
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Won Gon Kim, Chang Ji Zheng, Ki Young Kim, Mi Jin Sohn