Patents by Inventor Chongjun Yuan

Chongjun Yuan 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).

  • Isoflavone derivatives of tectorigenin, the preparation thereof and the antiviral medicine containing the same as an effective constituent
    Patent number: 7902253
    Abstract: An isoflavone derivative of tectorigenin compound as shown in formula (II), its preparation method and the antiviral medicine containing it as an effective constituent. The compound structure is shown as follows: Where:: R1 is H, NH2 or SO3M; R2 is OR?; R3 is H or —CH2NR?; where R? is H, —CH2COONa or —CH2CH2NMe2; NR? is or —NMe2; M is H, Na, K or N+H (CH2CH2OH)3.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: March 8, 2011
    Assignees: Chengdu Dikang Pharmaceutical Institute, Sichuan Dikang Sci-Tech Pharmaceutical Co., Ltd.
    Inventors: Xuemin Xu, Chongjun Yuan, Jia Wang, Shangbin Qi, Hai Yin, Yanming Zeng
  • Isoflavone derivatives of tectoridin, the preparation thereof and the anti-virus medicines containing the same as an effective constituents
    Publication number: 20070123566
    Abstract: An isoflavone derivative of tectorigenin compound as shown in formula (II), its preparation method and the antiviral medicine containing it as an effective constituent. The compound structure is shown as follows: Where:: R1 is H, NH2 or SO3M; R2 is OR?; R3 is H or —CH2NR?; where R? is H, —CH2COONa or —CH2CH2NMe2; NR? is or —NMe2; M is H, Na, K or N+H (CH2CH2OH)3.
    Type: Application
    Filed: May 14, 2004
    Publication date: May 31, 2007
    Applicants: CHENGDU DIKANG PHARMACEUTICAL INSTITUTE, SICHUAN DIKANG SCI-TECH PHARMACEUTICAL CO., LTD.
    Inventors: Xuemin Xu, Chongjun Yuan, Jia Wang, Shangbin Oi, Hai Yin, Yanming Zeng