Patents by Inventor Ruina Shi

Ruina Shi 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).

  • HIGH-PURITY FEBUXOSTAT AND THE METHOD FOR PREPARATION
    Publication number: 20110282069
    Abstract: A febuxostat which purity is not less than 99.0%, method for preparation thereof, and pharmaceutical composition thereof. The method for preparation includes recrystallizing febuxostat in a mixed solvent. The said pharmaceutical composition can be used in manufacture of medicaments for treating diseases associated with hyperuricemia.
    Type: Application
    Filed: January 20, 2010
    Publication date: November 17, 2011
    Applicant: CHONGQING PHARMACEUTICAL RESEARCH INSTITUTE CO/. LTD.
    Inventors: Xingguo Zhou, Xuemin Tang, Ruina Shi, Wenrun Ye, Jie Luo, Jie Deng, Bin Fan