Patents by Inventor Wenbing Dai

Wenbing Dai 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).

  • Liquid compositions of insoluble drugs and preparation methods thereof
    Patent number: 9339553
    Abstract: A liquid composition of an insoluble medicament and a preparation method thereof are disclosed. The composition includes insoluble medicament, oil for injection, phospholipid, and solvent; the percentage by weight of each component is as follows: insoluble medicament 0.01-10%, oil for injection 0%-20%, phospholipid 10-80%, solvent 20-89%. The preparation method for the composition includes the following steps: dissolving an insoluble medicament into solvent or oil for injection or a mixture thereof firstly, and then adding other components, and mixing uniformly; or dissolving an insoluble medicament into a mixture of other components, and mixing uniformly; or dissolving an insoluble medicament into part of solvent firstly, and then adding into a mixed solvent of other components and the remaining solvent, and mixing uniformly.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: May 17, 2016
    Assignee: PEKING UNIVERSITY
    Inventors: Qiang Zhang, Wenbing Dai, Jiancheng Wang, Xuan Zhang
  • Liquid Compositions of Insoluble Drugs and Preparation Methods Thereof
    Publication number: 20130156853
    Abstract: A liquid composition of an insoluble medicament and a preparation method thereof are disclosed. The composition includes insoluble medicament, oil for injection, phospholipid, and solvent; the percentage by weight of each component is as follows: insoluble medicament 0.01-10%, oil for injection 0%-20%, phospholipid 10-80%, solvent 20-89%. The preparation method for the composition includes the following steps: dissolving an insoluble medicament into solvent or oil for injection or a mixture thereof firstly, and then adding other components, and mixing uniformly; or dissolving an insoluble medicament into a mixture of other components, and mixing uniformly; or dissolving an insoluble medicament into part of solvent firstly, and then adding into a mixed solvent of other components and the remaining solvent, and mixing uniformly.
    Type: Application
    Filed: August 31, 2011
    Publication date: June 20, 2013
    Applicant: PEKING UNIVERSITY
    Inventors: Qiang Zhang, Wenbing Dai, Jiancheng Wang, Xuan Zhang