Patents by Inventor Jeoung Hyun Ryu

Jeoung Hyun Ryu 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).

  • Purification method of lactone compounds containing unsaturated alkyl group by extraction with silver ion solution
    Patent number: 8193345
    Abstract: The present invention relates to a method for separating and purifying a lactone compound with an unsaturated alkyl group from a lactone compound with a saturated alkyl group which is an analog thereof. More specifically, the present invention relates to a method for effectively separating a lactone compound with an unsaturated alkyl group such as FK506 at high purity by extraction with a silver ion (Ag+) solution without use of column chromatography.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: June 5, 2012
    Assignee: Genotech Corp.
    Inventors: Jae Jong Kim, Si Kyu Lim, Mi Ok Lee, Sang Myoun Lim, Bo-mi Lee, Dong Hwan Kim, Keum Soon Lee, Jeoung Hyun Ryu
  • PURIFICATION METHOD OF LACTONE COMPOUNDS CONTAINING UNSATURATED ALKYL GROUP BY EXTRACTION WITH SILVER ION SOLUTION
    Publication number: 20110172413
    Abstract: The present invention relates to a method for separating and purifying a lactone compound with an unsaturated alkyl group from a lactone compound with a saturated alkyl group which is an analog thereof. More specifically, the present invention relates to a method for effectively separating a lactone compound with an unsaturated alkyl group such as FK506 at high purity by extraction with a silver ion (Ag+) solution without use of column chromatography.
    Type: Application
    Filed: March 18, 2011
    Publication date: July 14, 2011
    Applicant: GENOTECH CO., LTD
    Inventors: Jae Jong Kim, Si Kyu Lim, Mi Ok Lee, Sang Myoun Lim, Bo-mi Lee, Dong Hwan Kim, Keum Soon Lee, Jeoung Hyun Ryu