Patents by Inventor Aizheng Chen

Aizheng Chen 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).

  • Publication number: 20200246493
    Abstract: Disclosed is a method of preparing a drug-iodinated oil dispersion by high-pressure dissolution. In the invention, drug molecules are dissolved in and thoroughly mixed with iodinated oil under high pressure and rapid stirring. After the depressurization, the drug molecules are dispersed in the iodinated oil to prepare a uniformly-mixed drug-iodinated oil dispersion. The drug-iodinated oil dispersion prepared herein, compared to the drug-iodinated oil suspension and emulsion, has advantages of controllable morphology, long-term stability and slow drug-releasing rate, moreover, the drug molecules do not negatively affect the iodinated oil in physicochemical properties such as viscosity. In the liver cancer treatment, the prepared drug-iodinated oil dispersion is firstly injected through the hepatic arteries to perform the embolization, and the drug molecules are slowly released for a sustained treatment. The invention provides a good reference for the therapy combined with iodinated oil embolization.
    Type: Application
    Filed: September 24, 2019
    Publication date: August 6, 2020
    Inventors: Gang LIU, Chengchao CHU, Jing ZHU, Yang ZHANG, Aizheng CHEN, Biaoqi CHEN
  • Patent number: 9138705
    Abstract: A solute is precipitated from a solution of a solute, a solvent, and a non-solvent by preparing the solution and introducing the solution into a precipitation chamber contain a supercritical fluid.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: September 22, 2015
    Assignee: HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Yi Li, Footim Chau, Aizheng Chen, Junyan Hu, Tsuiyan Lau
  • Publication number: 20120130066
    Abstract: A solute is precipitated from a solution of a solute, a solvent and a non-solvent by preparing the solutions and introducing the solution into a precipitation chamber contain a supercritical fluid.
    Type: Application
    Filed: November 22, 2010
    Publication date: May 24, 2012
    Applicant: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Yi Li, Footim Chau, Aizheng Chen, Junyan Hu, Tsuiyan Lau