Patents by Inventor Dur Han Kwon

Dur Han Kwon 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).

  • Antiviral composition containing material involved in phosphatidylcholine synthesis pathway
    Patent number: 10092587
    Abstract: The present invention relates to an antiviral composition comprising any one selected from the group consisting of chlorine, phosphocholine, cytidine triphosphate, CDP-choline, phosphorylcholine, and phosphatidylcholine. The antiviral composition is harmless to the human body and exhibits an excellent inhibitory effect on virus proliferation. Therefore, it can be applied to a pharmaceutical composition for preventing or treating viral diseases as well as a health functional food, a quasi-drug composition, and a feed composition for preventing or ameliorating viral diseases.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: October 9, 2018
    Assignee: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Dur Han Kwon, Mi Jin Jang, Jae Hyoung Song, Gansukh Enkhtaivan, Sei Ryang Oh
  • ANTIVIRAL COMPOSITION CONTAINING MATERIAL INVOLVED IN PHOSPHATIDYLCHOLINE SNYTHESIS PATHWAY
    Publication number: 20170173065
    Abstract: The present invention relates to an antiviral composition comprising any one selected from the group consisting of chlorine, phosphocholine, cytidine triphosphate, CDP-choline, phosphorylcholine, and phosphatidylcholine. The antiviral composition is harmless to the human body and exhibits an excellent inhibitory effect on virus proliferation. Therefore, it can be applied to a pharmaceutical composition for preventing or treating viral diseases as well as a health functional food, a quasi-drug composition, and a feed composition for preventing or ameliorating viral diseases.
    Type: Application
    Filed: December 22, 2016
    Publication date: June 22, 2017
    Applicant: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Dur Han Kwon, Mi Jin Jang, Jae Hyoung Song, Gansukh Enkhtaivan, Sei Ryang Oh
  • Flavonoid compound having an antiviral activity
    Patent number: 7998937
    Abstract: The present invention relates to a flavonoid compound having an antiviral activity, more particularly to a flavonoid compound obtained by extracting Houttuynia cordata with methanol and separating/purifying with chromatography, a method for efficient extraction and purification of the same and an antiviral composition comprising the compound as an active ingredient.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: August 16, 2011
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Dur Han Kwon, Wha Jeong Choi, Choong Hwan Lee, Jin Hee Kim, Man Bae Kim
  • Preparation of monoclonal antibody to downstream regulated gene 2 and determination of NDRG2 using protein chip
    Patent number: 7718780
    Abstract: The present invention relates to a monoclonal antibody specific for N-myc downstream regulated gene 2 (NDRG 2) protein, a cell line producing the monoclonal antibody, a method for measuring a quantity and quality of NDRG 2 protein, and a protein chip using the same. In the present invention, NDRG 2, a cancer-related factor is specifically expressed in dendritic cells differentiated from a monocyte of human peripheral blood. Accordingly, the monoclonal antibody specific for the NDRG 2 protein, the protein chip comprising the same and the method for measuring a quantity and quality of the NDRG 2 protein by using the same can be applied to elucidate characteristics of the dendritic cell and perform a research on the NDRG 2. Therefore, the present invention may help clinically to investigate and treat intractable diseases and cancers using the dendritic cell.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: May 18, 2010
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Eun Young Song, Jae Wha Kim, Hee Gu Lee, Jong Seok Lim, Seung Chul Choi, Mi Young Cho, Kyoung Eun Baek, Jin Sook Kim, Jong Tae Kim, Do Young Yoon, Dur Han Kwon, Mi-Young Park, Young Il Yeom, Yong-Kyung Choe, Young-Jun Kim
  • Pharmaceutical composition for the prevention and treatment of liver disease comprising a lonicera caerulea L. Var. Edulis extract
    Publication number: 20100074975
    Abstract: Disclosed herein is a pharmaceutical composition having preventative and therapeutic effects on liver diseases, comprising an extract from Lonicera caerulea L. var. edulis. The composition has preventative and therapeutic effects on hepatitis, liver cirrhosis, fatty liver, and the like.
    Type: Application
    Filed: July 7, 2006
    Publication date: March 25, 2010
    Inventors: Ju Hwan Eum, Man Chul Suh, Dur Han Kwon, Byeong ku Yoon, Wha jeong Choi, Kyung mi Kwon, Chan soo Kim
  • Flavonoid Compound Having an Antiviral Activity
    Publication number: 20090171074
    Abstract: The present invention relates to a flavonoid compound having an antiviral activity, more particularly to a flavonoid compound obtained by extracting Houttuynia cordata with methanol and separating/purifying with chromatography, a method for efficient extraction and purification of the same and an antiviral composition comprising the compound as an active ingredient.
    Type: Application
    Filed: November 3, 2006
    Publication date: July 2, 2009
    Inventors: Dur Han Kwon, Wha Jeong Choi, Choong Hwan Lee, Jin Hee Kim, Man Bae Kim