Patents by Inventor Seon Yeong Jeon

Seon Yeong Jeon 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).

  • Patent number: 7767832
    Abstract: Disclosed herein is a method of producing an optically active thiophene-based compound using a simulated moving bed adsorption separation process, and more specifically, a method of continuously separating a racemic thiophene-based compound into its optically active thiophene-based compounds having high purity, through optical resolution using the simulated moving bed process. According to the method of the current invention, a racemic mixture of a thiophene-based compound can be continuously separated into its optically active thiophene-based compounds having high purity, which is an intermediate of optically active dorzolamide acting as a topical therapeutic agent for glaucoma, using a simulated moving bed adsorption separation technique, thereby increasing industrial usability.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: August 3, 2010
    Assignee: SK Holdings Co., Ltd.
    Inventors: Jae Suk Koh, Chun Young Kim, Byoung In Lee, Sang Soo Lee, Seong Jun Lee, Jong Ho Lim, Seon Yeong Jeon, Jun Bae Hong
  • Publication number: 20090234140
    Abstract: Disclosed herein is a method of producing an optically active thiophene-based compound using a simulated moving bed adsorption separation process, and more specifically, a method of continuously separating a racemic thiophene-based compound into its optically active thiophene-based compounds having high purity, through optical resolution using the simulated moving bed process. According to the method of the current invention, a racemic mixture of a thiophene-based compound can be continuously separated into its optically active thiophene-based compounds having high purity, which is an intermediate of optically active dorzolamide acting as a topical therapeutic agent for glaucoma, using a simulated moving bed adsorption separation technique, thereby increasing industrial usability.
    Type: Application
    Filed: December 20, 2004
    Publication date: September 17, 2009
    Applicant: SK CORPORATION
    Inventors: Jae Suk Koh, Chun Young Kim, Byoung In Lee, Sang Soo Lee, Seong Jun Lee, Jong Ho Lim, Seon Yeong Jeon, Jun Bae Hong