Patents by Inventor Qingson Tian

Qingson Tian 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).

  • Agomelatine and pharmaceutical compositions thereof
    Patent number: 9029420
    Abstract: Agomelatine crystal, which is a drug for treating depression, and pharmaceutical compositions thereof are provided. The X-ray powder diffraction spectra of such agomelatine crystal, which is irradiated by Cu-K? and showed by 2?(degree), has characteristic diffraction peaks at 12.84, 13.84, 16.14, 18.56, 19.12, 20.86, 21.20, 23.84; its IR absorption pattern has characteristic absorption peaks at about 3234, 3060, 2940, 1638, 1511, 1436, 1249, 1215, 1184, 1032, 908, 828, 755, 588 cm-1, and its DSC endothermic transition temperature is 97.6° C. The use of the agomelatine crystal as an active ingredient in preparing a medicament for the treatment of depression is also provided.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: May 12, 2015
    Assignee: Tianjin Taipu Pharmaceutical Science & Technology Development Co., Ltd.
    Inventors: Jianqiang Zhu, Qingson Tian, Jian Zhao
  • AGOMELATINE AND PHARMACEUTICAL COMPOSITIONS THEREOF
    Publication number: 20120252901
    Abstract: Agomelatine crystal, which is a drug for treating depression, and pharmaceutical compositions thereof are provided. The X-ray powder diffraction spectra of such agomelatine crystal, which is irradiated by Cu-K? and showed by 2?(degree), has characteristic diffraction peaks at 12.84, 13.84, 16.14, 18.56, 19.12, 20.86, 21.20, 23.84; its IR absorption pattern has characteristic absorption peaks at about 3234, 3060, 2940, 1638, 1511, 1436, 1249, 1215, 1184, 1032, 908, 828, 755, 588 cm-1, and its DSC endothermic transition temperature is 97.6° C. The use of the agomelatine crystal as an active ingredient in preparing a medicament for the treatment of depression is also provided.
    Type: Application
    Filed: December 13, 2010
    Publication date: October 4, 2012
    Applicant: TIANJIN TAIPU PHARMACEUTICAL SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD
    Inventors: Jianqiang Zhu, Qingson Tian, Jian Zhao