Patents by Inventor Ju-Yeon Moon

Ju-Yeon Moon 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).

  • Solid-phase extraction method of steroid hormones by entrapped ?-cyclodextrin polymers
    Patent number: 7951890
    Abstract: Provided is a method for selective extraction of steroid compounds using entrapped ?-cyclodextrin polymers. Particularly, steroid hormones can be effectively selected from a biological sample by selectively extracting steroid compounds using entrapped ?-cyclodextrin polymers, prepared by adding epichlorohydrin to ?-cyclodextrin to prepare a polymer in a gel state, entrapping the polymer and pulverizing the products without using an additional device required in conventional solid-phase extraction.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: May 31, 2011
    Assignee: Korea Institute of Science and Technology
    Inventors: Man Ho Choi, Dong Hyun Kim, Bong Chul Chung, Ju-Yeon Moon
  • Entrapped ?-cyclodextrin polymer and a method of preparing the same
    Patent number: 7745558
    Abstract: Provided are entrapped ?-cyclodextrin polymers and a method of preparing the same. Particularly, entrapped ?-cyclodextrin polymers are prepared by adding epichlorohydrin to ?-cyclodextrin to prepare a polymer in a gel state, entrapping the polymer by entrapment of metal ions on the surface of the polymer and pulverizing the entrapped polymer to prepare powders. According to the entrapped ?-cyclodextrin polymers, steroid hormones contained in a biological sample can be simply extracted without using an additional device required in conventional solid-phase extraction.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: June 29, 2010
    Assignee: Korea Institute of Science and Technology
    Inventors: Man Ho Choi, Dong Hyun Kim, Bong Chul Chung, Ju-Yeon Moon
  • Solid-Phase Extraction Method of Steroid Hormones by Entrapped Beta-Cyclodextrin Polymers
    Publication number: 20080207931
    Abstract: Provided is a method for selective extraction of steroid compounds using entrapped ?-cyclodextrin polymers. Particularly, steroid hormones can be effectively selected from a biological sample by selectively extracting steroid compounds using entrapped ?-cyclodextrin polymers, prepared by adding epichlorohydrin to ?-cyclodextrin to prepare a polymer in a gel state, entrapping the polymer and pulverizing the products without using an additional device required in conventional solid-phase extraction.
    Type: Application
    Filed: November 29, 2007
    Publication date: August 28, 2008
    Inventors: Man Ho Choi, Dong Hyun Kim, Bong Chul Chung, Ju-Yeon Moon
  • Entrapped Beta-Cyclodextrin Polymer and a Method of Preparing the Same
    Publication number: 20080194784
    Abstract: Provided are entrapped ?-cyclodextrin polymers and a method of preparing the same. Particularly, entrapped ?-cyclodextrin polymers are prepared by adding epichlorohydrin to ?-cyclodextrin to prepare a polymer in a gel state, entrapping the polymer by entrapment of metal ions on the surface of the polymer and pulverizing the entrapped polymer to prepare powders. According to the entrapped ?-cyclodextrin polymers, steroid hormones contained in a biological sample can be simply extracted without using an additional device required in conventional solid-phase extraction.
    Type: Application
    Filed: November 29, 2007
    Publication date: August 14, 2008
    Inventors: Man Ho Choi, Dong Hyun Kim, Bong Chul Chung, Ju-Yeon Moon