Patents by Inventor Shen Jingshan

Shen Jingshan 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).

  • Isoquinolinium compounds useful in the preparation of cisatracurium and associated intermediates
    Patent number: 8357807
    Abstract: The present invention provides novel isoquinolinium compounds, methods of producing the isoquinolinium compounds, and methods for converting them into cisatracurium, e.g., cisatracurium besylate. The isoquinolinium compounds of the present invention can be obtained in the form of solids, which can be purified using simple techniques and can be used to afford pure cisatracurium besylate without HPLC purification.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: January 22, 2013
    Assignee: CHEMAGIS Ltd.
    Inventors: Vladimir Naddaka, Shen Jingshan, Oded Arad, Guo Hongli, Ofer Sharon, Eyal Klopfer, Shady Saeed
  • Process for producing cisatracurium compounds and associated intermediates
    Patent number: 8293912
    Abstract: The present invention provides processes for producing isoquinolinium compounds, and for converting them into cisatracurium salts, e.g.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: October 23, 2012
    Assignee: Chemagis Ltd.
    Inventors: Vladimir Naddaka, Shen Jingshan, Oded Arad, Guo Hongli, Ofer Sharon, Eyal Klopfer, Shady Saeed
  • PROCESS FOR PRODUCING CISATRACURIUM COMPOUNDS AND ASSOCIATED INTERMEDIATES
    Publication number: 20100184988
    Abstract: The present invention provides processes for producing isoquinolinium compounds, and for converting them into cisatracurium salts, e.g.
    Type: Application
    Filed: May 1, 2008
    Publication date: July 22, 2010
    Applicant: CHEMAGIS LTD.
    Inventors: Vladimir Naddaka, Shen Jingshan, Oded Arad, Guo Hongli, Ofer Sharon, Eyal Klopfer, Shady Saeed
  • NOVEL ISOQUINOLINIUM COMPOUNDS USEFUL IN THE PREPARATION OF CISATRACURIUM AND ASSOCIATED INTERMEDIATES
    Publication number: 20100168431
    Abstract: The present invention provides novel isoquinolinium compounds, methods of producing the isoquinolinium compounds, and methods for converting them into cisatracurium, e.g., cisatracurium besylate.
    Type: Application
    Filed: May 1, 2008
    Publication date: July 1, 2010
    Applicant: Chemagis Ltd.
    Inventors: Vladimir Naddaka, Shen Jingshan, Oded Arad, Guo Hongli, Ofer Sharon, Eyal Klopfer, Shady Saeed