Patents by Inventor Quingguo Meng

Quingguo Meng 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).

  • Patent number: 9012660
    Abstract: The present disclosure relates to 5,6,7,8-tetrahydro-6-[N,N-bis[(2-thienyl)ethyl]]amino-1-naphthol, a method for preparing the same, and use of 5,6,7,8-tetrahydro-6-[N,N-bis[(2-thienyl)ethyl]]amino-1-naphthol as a reference compound for determining an impurity in rotigotine or a preparation thereof.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: April 21, 2015
    Assignee: Shandong Luye Pharmaceutical Co., Ltd.
    Inventors: Mina Yang, Yanyan Zhao, Fengmei Zhou, Quingguo Meng, Tao Wang
  • Publication number: 20140196523
    Abstract: The present disclosure relates to 5,6,7,8-tetrahydro-6-[N,N-bis[(2-thienypethyl]]amino-1-naphthol, a method for preparing the same, and use of 5,6,7,8-tetrahydro-6-[N,N-bis[(2-thienypethyl]]amino-1-naphthol as a reference compound for determining an impurity in rotigotine or a preparation thereof.
    Type: Application
    Filed: August 6, 2012
    Publication date: July 17, 2014
    Applicant: SHANDONG LUYE PHARMACEUTICAL CO., LTD.
    Inventors: Mina Yang, Yanyan Zhao, Fengmei Zhou, Quingguo Meng, Tao Wang