Patents by Inventor Tong-Wei GUAN

Tong-Wei GUAN 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).

  • METHODS FOR PREPARING DEOXYCHOLIC ACID
    Publication number: 20190077826
    Abstract: The present invention discloses method for preparing deoxycholic acid (DCA) or an ester thereof or a pharmaceutically acceptable salt thereof. Said compounds may be applied to remove a fat deposition.
    Type: Application
    Filed: November 8, 2018
    Publication date: March 14, 2019
    Applicant: NORATECH PHARMACEUTICALS, INC.
    Inventors: Cheng-Gang LIN, Li GUI, Pan CHEN, Zhi-Xuan WANG, Tong-Wei GUAN, Yuan-Yuan YIN, Yu-Ling LU
  • Methods for preparing deoxycholic acid
    Patent number: 10160782
    Abstract: The present invention discloses method for preparing deoxycholic acid (DCA) or an ester thereof or a pharmaceutically acceptable salt thereof. Said compounds may be applied to remove a fat deposition.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: December 25, 2018
    Assignee: NORATECH PHARMACEUTICALS, INC.
    Inventors: Cheng-Gang Lin, Li Gui, Pan Chen, Zhi-Xuan Wang, Tong-Wei Guan, Yuan-Yuan Yin, Yu-Ling Lu
  • METHODS FOR PREPARING DEOXYCHOLIC ACID
    Publication number: 20180111960
    Abstract: The present invention discloses method for preparing deoxycholic acid (DCA) or an ester thereof or a pharmaceutically acceptable salt thereof. Said compounds may be applied to remove a fat deposition.
    Type: Application
    Filed: February 26, 2016
    Publication date: April 26, 2018
    Applicant: NORATECH PHARMACEUTICALS, INC.
    Inventors: Cheng-Gang LIN, Li GUI, Pan CHEN, Zhi-Xuan WANG, Tong-Wei GUAN, Yuan-Yuan YIN, Yu-Ling LU