Patents by Inventor Benshun Chen

Benshun Chen 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).

  • Preparation method of Rosuvastatin calcium and its intermediates
    Patent number: 8765947
    Abstract: A preparation method of rosuvastatin calcium (Formula 1), which can be used for the production of medicament lowering the levels of LDL-cholesterol and triglycerides in vivo, is provided. Such preparation method is suitable for industrial production. Furthermore, the intermediate crystallines used in the preparation method are provided.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: July 1, 2014
    Assignee: Changzhou Pharmaceutical Factory
    Inventors: Benshun Chen, Bing Wang, Xiaofeng Jin, Lin Zou
  • Preparation method of rosuvastatin calcium and its intermediates
    Patent number: 8653265
    Abstract: A preparation method of rosuvastatin calcium (Formula 1), which can be used for the production of medicament lowering the levels of LDL-cholesterol and triglycerides in vivo, is provided. Such preparation method is suitable for industrial production. Furthermore, the intermediate crystallines used in the preparation method are provided.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: February 18, 2014
    Assignee: Changzhou Pharmaceutical Factory
    Inventors: Benshun Chen, Bing Wang, Xiaofeng Jin, Lin Zou
  • PREPARATION METHOD OF ROSUVASTATIN CALCIUM AND ITS INTERMEDIATES
    Publication number: 20110124864
    Abstract: A preparation method of rosuvastatin calcium (Formula 1), which can be used for the production of medicament lowering the levels of LDL-cholesterol and triglycerides in vivo, is provided. Such preparation method is suitable for industrial production. Furthermore, the intermediate crystallines used in the preparation method are provided.
    Type: Application
    Filed: May 27, 2009
    Publication date: May 26, 2011
    Applicant: CHANGZHOU PHARMACEUTICAL FACTORY
    Inventor: Benshun Chen