Patents by Inventor Hyun-Ki Paeng

Hyun-Ki Paeng 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 of producing teicoplanin
    Patent number: 7192743
    Abstract: Disclosed is a method of producing teicoplanin. The method includes purifying teicoplanin from a culture broth, obtained by culturing microorganisms capable of producing teicoplanin by a porous adsorption resin under selective elution conditions and recovering highly pure teicoplanin using activated carbon and/or ultrafiltration. In this regard, the method can further include ultrafiltration as pre-treatment before the culture broth is adsorbed into the porous adsorption resin so as to increase the purity of teicoplanin.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: March 20, 2007
    Assignee: Dong Kook Pharmaceutical Co., Ltd.
    Inventors: Deok-Joong Youn, Ho-Myeung Ryu, Kang-Hee Lee, Dae-Sung Lim, In-Kyu Lee, Sung-Woo Kim, Hyun-Ki Paeng, Kyung-Hoi Cha
  • Method of producing teicoplanin
    Publication number: 20050245481
    Abstract: Disclosed is a method of producing teicoplanin. The method includes purifying teicoplanin from a culture broth, obtained by culturing microorganisms capable of producing teicoplanin by a porous adsorption resin under selective elution conditions and recovering highly pure teicoplanin using activated carbon and/or ultrafiltration. In this regard, the method can further include ultrafiltration as pre-treatment before the culture broth is adsorbed into the porous adsorption resin so as to increase the purity of teicoplanin.
    Type: Application
    Filed: April 15, 2005
    Publication date: November 3, 2005
    Applicant: DONG KOOK PHARMACEUTICAL CO., LTD.
    Inventors: Deok-Joong Youn, Ho-Myeung Ryu, Kang-Hee Lee, Dae-Sung Lim, In-Kyu Lee, Sung-Woo Kim, Hyun-Ki Paeng, Kyung-Hoi Cha