Patents by Inventor Qianqian TANG

Qianqian TANG 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).

  • COMPOUND AND PREPARATION METHOD THEREFOR AND USE THEREOF
    Publication number: 20220340539
    Abstract: Provided are a novel impurity compound of rotigotine behenate, rotigotine behenate or a preparation thereof containing less than 0.5 wt % of the impurity compound and use of the impurity compound as a reference substance in the impurity detection of the rotigotine behenate or the preparation thereof.
    Type: Application
    Filed: September 29, 2020
    Publication date: October 27, 2022
    Inventors: Fengmei ZHOU, Wenjuan TAN, Qianqian TANG, Jinrong WANG, Rui ZHANG, Fei YU