Patents by Inventor Cook-Hee Kim

Cook-Hee Kim 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).

  • Methods for purifying erythropoietin analogs having lower isoelectric point
    Patent number: 9994627
    Abstract: The present invention relates to a method for purifying an erythropoietin analog having a low isoelectric point below 4 by adding an N-linked sugar chain with high purity. In accordance with the present invention, the erythropoietin analog having an isoelectric point below 4, which is an isoform having more sialic acid residues, can be effectively purified via three-step chromatographic processes in short time at lower cost.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: June 12, 2018
    Assignee: CHONG KUN DANG PHARMACEUTICAL CORP.
    Inventors: Yeo-Wook Koh, Sang-Yong Lee, Cook-Hee Kim, Seung-Hui Lee, Ha-Na Kim, Su-Yon Kim, Jin-Hyun Seong, Yong-Hyun Cho
  • METHODS FOR PURIFYING ERYTHROPOIETIN ANALOGS HAVING LOWER ISOELECTRIC POINT
    Publication number: 20140243510
    Abstract: The present invention relates to a method for purifying an erythropoietin analog having a low isoelectric point below 4 by adding an N-linked sugar chain with high purity. In accordance with the present invention, the erythropoietin analog having an isoelectric point below 4, which is an isoform having more sialic acid residues, can be effectively purified via three-step chromatographic processes in short time at lower cost.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 28, 2014
    Applicant: CHONG KUN DANG PHARMACEUTICAL CORP.
    Inventors: Yeo-Wook Koh, Sang-Yong Lee, Cook-Hee Kim, Seung-Hui Lee, Ha-Na Kim, Su-Yon Kim, Jin-Hyun Seong, Yong-Hyun Cho