Patents by Inventor Youn-Ja Kwon

Youn-Ja 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).

  • Retinoid derivatives and methods for producing said compounds and anti-cancer pharmaceutical composition comprising said compounds
    Patent number: 7166744
    Abstract: The present invention relates to a novel retinoid derivative compound represented by the formula I: wherein X, R1, R2 and R3 are as defined herein or pharmaceutically acceptalbe salts thereof. Also, the present invention relates to processes for producing the compound of the formula I and to an anti-cancer composition comprising the compound of the formula I. The compound of the formula I according to the present invention exerts high anti-cancer effects while not causing undesirable side effects.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: January 23, 2007
    Assignee: Chebigen Co., Ltd.
    Inventors: Hong-Sig Sin, Soo-Jong Um, Young-Soy Rho, Si-Ho Park, Youn-Ja Kwon, Myoung-Soon Park, Hye-Sook Han, So-Mi Kim, Dong-Myoung Kim, Deok-Kun Oh, Jong-Sup Park, Tae-Sung Bae
  • Retinol derivatives, the method of preparations and the uses thereof
    Patent number: 7030265
    Abstract: The present invention relates to novel retinol derivatives, the methods of preparation and the uses thereof. According to the present invention, retinol derivatives comprise carboester linkage between di-, tri-, polypeptide having functional group of COOH and retinol. Retinol derivatives in the present invention comprise carboester linkage between amino acid having functional group of di-COOH and retinol. Retinol derivatives comprise carboester linkage between retinol and the compounds having the function group of COOH and multiple double bonds on carbon chain. Retinol derivatives in the present invention comprise carboester linkage between retinol and the compounds having the functional group of di-COOH and one double bond. Retinol derivatives in the present invention comprise ether linkage between the compounds with OH functional group and retinol.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: April 18, 2006
    Assignee: Chebigen, Inc.
    Inventors: Hong-Sig Sin, Si-Ho Park, Young-Soy Rho, Soo-Jong Um, Youn-Ja Kwon, Myoung-Soon Park, Hye-Sook Han, Min-Sook Jung, So-Mi Kim-Cho, Dong-Myong Kim, Deok-kun Oh, Jong-Sup Park
  • Retinol derivatives, the method of preparations and the uses thereof
    Publication number: 20040023888
    Abstract: The present invention relates to novel retinol derivatives, the methods of preparation and the uses thereof. According to the present invention, retinol derivatives comprise carboester linkage between di-, tri-, polypeptide having functional group of COOH and retinol. Retinol derivatives in the present invention comprise carboester linkage between amino acid having functional group of di-COOH and retinol. Retinol derivatives comprise carboester linkage between retinol and the compounds having the function group of COOH and multiple double bonds on carbon chain. Retinol derivatives in the present invention comprise carboester linkage between retinol and the compounds having the functional group of di-COOH and one double bond. Retinol derivatives in the present invention comprise ether linkage between the compounds with OH functional group and retinol.
    Type: Application
    Filed: January 2, 2003
    Publication date: February 5, 2004
    Inventors: Hong-Sig Sin, Si-Ho Park, Young-Soy Rho, Soo-Jong Um, Youn-Ja Kwon, Myoung-Soon Park, Hye-Sook Han, Min-Sook Jung, So-Mi Kim-Cho, Dong-Myong Kim, Deok-kun Oh, Jong-Sup Park
  • Novel retinoid derivatives and methods for producing said compounds and anti-cancer pharmaceutical composition comprising said compounds
    Publication number: 20030171339
    Abstract: The present invention relates to a novel retinoid derivative compound represented by the formula I: 1
    Type: Application
    Filed: September 17, 2002
    Publication date: September 11, 2003
    Inventors: Hong-Sig Sin, Soo-Jong Um, Young-Soy Rho, Si-Ho Park, Youn-Ja Kwon, Myoung-Soon Park, Hye-Sook Han, So-Mi Kim, Dong-Myong Kim, Deon-Kun Oh, Jong-Sup Park, Tae-Sung Bae