Patents by Inventor Zhen'gang ZHU

Zhen'gang ZHU 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).

  • Y-type discrete polyethylene glycol derivative and preparation method thereof
    Patent number: 10464882
    Abstract: The present invention discloses a Y-type discrete polyethylene glycol derivative, which has the advantages of determined molecular weights and the number of chain segments, and can avoid the defect of heterogeneity of a PEG derivative. In addition, the Y-type discrete polyethylene glycol derivative of the present invention may increase the water solubility of the discrete polyethylene glycol, and solve the problem of insufficient water solubility of the discrete polyethylene glycol-modified insoluble drug caused by an increase of the loading capacity.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: November 5, 2019
    Assignee: JENKEM TECHNOLOGY CO., LTD. (BEIJING)
    Inventors: Hui Zhu, Meina Lin, Xiaomeng Chen, Zhen'gang Zhu, Xuan Zhao
  • Y-TYPE DISCRETE POLYETHYLENE GLYCOL DERIVATIVE AND PREPARATION METHOD THEREOF
    Publication number: 20180044280
    Abstract: The present invention discloses a Y-type discrete polyethylene glycol derivative and a preparation method thereof, which has the advantages of determined molecular weights and the number of chain segments, and can avoid the defect of heterogeneity of a PEG derivative, meanwhile the preparation method has simple steps, mild conditions, without need for strictly anhydrous environment or performing protection and deprotection steps. In addition, the Y-type discrete polyethylene glycol derivative of the present invention may increase the water solubility of the discrete polyethylene glycol, and solve the problem of insufficient water solubility of the discrete polyethylene glycol-modified insoluble drug caused by an increase of the loading capacity.
    Type: Application
    Filed: October 23, 2017
    Publication date: February 15, 2018
    Inventors: Hui ZHU, Meina LIN, Xiaomeng CHEN, Zhen'gang ZHU, Xuan ZHAO