Patents by Inventor Jufang Yan

Jufang Yan 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).

  • Use of ursolic acid saponin,oleanolic acid saponin in preparation of increasing leucocytes and/or platelet medicine
    Patent number: 8394776
    Abstract: The invention provides the use of ursolic acid saponin and oleanolic acid saponin of formula (I) in preparing medicaments for increasing leucocytes and/or platelets. The invention also provides a pharmaceutical composition containing the same compound. The invention utilizes the cheap and accessible ursolic acid and oleanolic acid which are widely present in natural plants as raw materials, introduces monosaccharyls or oligosaccharyls by structural modification. It is proved by pharmacological tests that the compound of formula (I) have an activity of obviously increasing leucocytes and/or platelets.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: March 12, 2013
    Assignee: Chengdu Di'Ao Jiuhong Pharmaceutical Factor
    Inventors: Bing Guang, Junjian Liu, Guangxin Dong, Xiangyang Peng, Xiaoxia Gong, Zhen Huang, Meirong Zhou, Wei Zhan, Jufang Yan, Yu Huang, Dongguang Qin, Jianxin Ji, Bogang Li
  • USE OF URSOLIC ACID SAPONIN,OLEANOLIC ACID SAPONIN IN PREPARATION OF INCREASING LEUCOCYTES AND/OR PLATELET MEDICINE
    Publication number: 20100197898
    Abstract: The invention provides the use of ursolic acid saponin and oleanolic acid saponin of formula (I) in preparing medicaments for increasing leucocytes and/or platelets. The invention also provides a pharmaceutical composition containing the same compound. The invention utilizes the cheap and accessible ursolic acid and oleanolic acid which are widely present in natural plants as raw materials, introduces monosaccharyls or oligosaccharyls by structural modification. It is proved by pharmacological tests that the compound of formula (I) have an activity of obviously increasing leucocytes and/or platelets.
    Type: Application
    Filed: January 16, 2008
    Publication date: August 5, 2010
    Applicant: Chengdu Di'Ao Jiuhong Pharmaceutical Factory
    Inventors: Bing Guang, Junjian Liu, Guangxin Dong, xiangyang Peng, xiaoxia Gong, zhen Huang, Meirong Zhou, Wei Zhan, Jufang Yan, Yu Huang, Dongguang Qin, jianxin Jl, Bogang Li