Patents by Inventor Yeon Woo Ryu

Yeon Woo 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).

  • Esterase, its DNA, its overexpression and production of optically active aryl propionic acids using the same
    Patent number: 7223582
    Abstract: The present invention relates to an esterase, its DNA, its overexpression and a method for preparing an optically active aryl propionic acid of formula (1) using the same in high yield, wherein R1 represents an aryl group; and R2 represents a hydrogen atom.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: May 29, 2007
    Assignee: Korea Research Institute of BioScience and Biotechnology
    Inventors: Bong Hyun Chung, Eun Gyo Lee, Moon Sun Hahm, Yeon Woo Ryu, Han Seung Lee
  • Esterase, its DNA, its overexpression and production of optically active aryl propionic acids using the same
    Publication number: 20040219594
    Abstract: The present invention relates to an esterase, its DNA, its overexpression and a method for preparing an optically active aryl propionic acid of formula (1) using the same in high yield, 1
    Type: Application
    Filed: June 3, 2004
    Publication date: November 4, 2004
    Inventors: Bong Hyun Chung, Eun Gyo Lee, Moon Sun Hahm, Yeon Woo Ryu, Han Seung Lee
  • Esterase, its DNA, its overexpression and production of optically active aryl propionic acids using the same
    Publication number: 20040161832
    Abstract: The present invention relates to an esterase, its DNA, its overexpression and a method for preparing an optically active aryl propionic acid of formula (1) using the same in high yield, 1
    Type: Application
    Filed: April 9, 2002
    Publication date: August 19, 2004
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Bong Hyun Chung, Eun Gyo Lee, Moon Sun Hahm, Yeon Woo Ryu, Han Seung Lee
  • Esterase, its DNA, its overexpression and production of optically active aryl propionic acids using the same
    Publication number: 20030170835
    Abstract: The present invention relates to an esterase, its DNA, its overexpression and a method for preparing an optically active aryl propionic acid of formula (1) using the same in high yield, 1
    Type: Application
    Filed: April 9, 2002
    Publication date: September 11, 2003
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Bong Hyun Chung, Eun Gyo Lee, Moon Sun Hahm, Yeon Woo Ryu, Han Seung Lee
  • Fermentation process for preparing erythritol by a high salt tolerant mutant of Candida sp.
    Publication number: 20010055796
    Abstract: A fermentation process for preparing a high yield erythritol using a salt tolerant mutant of Candida sp. [Candida magnoliae SR101:KCCM-10160]. More specifically, the present invention relates to a process for preparing erythritol under optimal fermentation conditions for maximal erythritol production by optimizing the environmental conditions of culture, including medium component, pH, temperature, aeration rate and agitation speed.
    Type: Application
    Filed: August 17, 2001
    Publication date: December 27, 2001
    Applicant: Bolak Co. Ltd.
    Inventors: Jin Ho Seo, Yeon Woo Ryu, Soo Ryun Jung, Sang Yong Kim
  • Fermentation process for preparing erythritol by a high salt tolerant mutant of Candida sp.
    Patent number: 6287830
    Abstract: A fermentation process for preparing a high yield erythritol using a salt tolerant mutant of Candida sp. [Candida magnoliae SR101:KCCM-10160]. More specifically, the present invention relates to a process for preparing erytlritol under optimal fermentation conditions for maximal erythritol production by optimizing the environmental conditions of culture, including medium component, pH, temperature, aeration rate and agitation speed.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: September 11, 2001
    Assignee: Bolak, Co., Ltd.
    Inventors: Jin Ho Seo, Yeon Woo Ryu, Soo Ryun Jung, Sang Yong Kim