Patents by Inventor Jae-Won Yu

Jae-Won Yu 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).

  • Method for the preparation of polymeric micelle via phase separation of block copolymer
    Patent number: 7550157
    Abstract: A method for preparing a biodegradable polymeric micellar composition using liquid polyethylene glycol as a phase separation medium. The present invention also provides an efficient method to effectively incorporate a hydrophobic drug into a polymeric micelle in a polyethylene glycol separating medium.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: June 23, 2009
    Assignee: Samyang Corporation
    Inventors: Min-Hyo Seo, Yil-Woong Yi, Jae-Won Yu
  • Stable polymeric micelle-type drug composition and method for the preparation thereof
    Patent number: 7217770
    Abstract: A biocompatible stable composition containing a hydrophobic drug, such as paclitaxel. The composition, which forms a syringeable polymeric micellar solution in aqueous or body fluids, is a freeze-dried product comprising a hydrophobic drug, i.e. paclitaxel, and an amphiphilic block copolymer wherein a hydrophobic group having affinity or attraction with the hydrophobic drug, such as paclitaxel, is incorporated on its end.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: May 15, 2007
    Assignee: Samyang Corporation
    Inventors: Min-Hyo Seo, Yil-Woong Yi, Jae-Won Yu
  • Method for the preparation of polymeric micelle via phase separation of block copolymer
    Publication number: 20030180363
    Abstract: A method for preparing a biodegradable polymeric micellar composition using liquid polyethylene glycol as a phase separation medium. The present invention also provides an efficient method to effectively incorporate a hydrophobic drug into a polymeric micelle in a polyethylene glycol separating medium.
    Type: Application
    Filed: November 12, 2002
    Publication date: September 25, 2003
    Inventors: Min-Hyo Seo, Yil-Woong Yi, Jae-Won Yu
  • Stable polymeric micelle-type drug composition and method for the preparation thereof
    Publication number: 20030143184
    Abstract: The invention is directed to a biocompatible stable composition containing a hydrophobic drug, such as paclitaxel. The composition, which forms a syringeable polymeric micellar solution in aqueous or body fluids, is a freeze-dried product comprising a hydrophobic drug, i.e. paclitaxel, and an amphiphilic block copolymer wherein a hydrophobic group having affinity or attraction with the hydrophobic drug, such as paclitaxel, is incorporated on its end. The invention provides a shelf life of longer than three years in a sterilized container, stability of longer than three days in infusion fluid, has minimal side effects and shows improved bioavailability.
    Type: Application
    Filed: November 15, 2002
    Publication date: July 31, 2003
    Inventors: Min-Hyo Seo, Yil-Woong Yi, Jae-Won Yu