Patents by Inventor Chun-Feng Qiao

Chun-Feng Qiao 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).

  • Compounds from , their use in treating cancer and method of separating epimers thereof
    Patent number: 7592367
    Abstract: Three pairs of C-2 epimeric xanthones isolated from Garcinia hanburyi and method for efficiently separating the xanthone compounds into individual epimers, each of which possesses varying biological effects. The compounds are useful for their anticancer effects, particularly because they are shown to be non-substrates of the multidrug-resistance transporter. Some of the epimers have significant inhibitory effects on cytochrome P450 systems. The xanthone compounds of the present invention are gambogic acid, epigambogic acid, isogambogic acid, isoepigambogic acid, 30-hydroxygambogic acid and 30-hydroxyepigambogic acid.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: September 22, 2009
    Assignee: Hong Kong Jockey Club Institute of Chinese Medicine Ltd.
    Inventors: Quan-Bin Han, Jing-Zheng Song, Chun-Feng Qiao, Ling Yang, Hong-Xi Xu
  • NOVEL COMPOUNDS FROM GARCINIA HANBURYI, THEIR USE IN TREATING CANCER AND METHOD OF SEPARATING EPIMERS THEREOF
    Publication number: 20070149610
    Abstract: Three pairs of C-2 epimeric xanthones isolated from Garcinia hanburyi and method for efficiently separating the xanthone compounds into individual epimers, each of which possesses varying biological effects. The compounds are useful for their anticancer effects, particularly because they are shown to be non-substrates of the multidrug-resistance transporter. Some of the epimers have significant inhibitory effects on cytochrome P450 systems. The xanthone compounds of the present invention are gambogic acid, epigambogic acid, isogambogic acid, isoepigambogic acid, 30-hydroxygambogic acid and 30-hydroxyepigambogic acid.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 28, 2007
    Applicant: Hong Kong Jockey Club Institute of Chinese Medicine Limited
    Inventors: Quan-Bin HAN, Jing-Zheng SONG, Chun-Feng QIAO, Ling YANG, Hong-Xi XU
  • CHEMICAL COMPOUNDS AND THEIR USE AS THERAPEUTIC AGENT AND MEANS OF QUALITY ASSESSMENT OF HERBAL MEDICINES
    Publication number: 20070148268
    Abstract: Two novel benzofuran glycosides, named psoralenoide and isopsoralenoide, isolated and purified from the seeds of Psoralea corylifolia. The compounds are useful as therapeutic agents for diseases defined under TCM and as a more accurately means of quality control and assessment for Psoralea corylifolia, an important herbs used in TCM.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 28, 2007
    Applicant: Hong Kong Jockey Club Institute of Chinese Medicine Limted
    Inventors: Chun Feng QIAO, Quan-Bin HAN, Jing-Zheng SONG, Shi-Fu MO, Ling-Dong KONG, Hsiang-Fu KUNG, Hong-Xi XU