Patents by Inventor Sang Sup Jew

Sang Sup Jew 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).

  • Liver protection or treatment agents comprising asiatic acid derivatives as the active component
    Patent number: 6274559
    Abstract: Compositions and methods of treating or preventing hepatotoxicity utilizing asiatic acid derivatives of Formula 1 are disclosed.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: August 14, 2001
    Assignee: Dong Kook Pharmaceutical Co., Ltd.
    Inventors: Sang Sup Jew, Hyeung Geun Park, Hee Doo Kim, Young Hoon Jung, Young Choong Kim, Hong Pyo Kim, Mi Kyeong Lee, Hee Sung Choi, Eung Seok Lee, Chi Hyoung Yoo, Doo Yeon Lim, Jeong Hoon Kim, Hee Man Kim
  • Camptothecin compounds and a method of preparation thereof
    Patent number: 6265413
    Abstract: Camptothecin derivatives and pharmaceutically acceptable salts thereof, its manufacturing method and an antineoplastic agent containing it. The camptothecin derivatives are modified in B-ring and E-ring and show improved water solubility and enhanced antineoplastic effect.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: July 24, 2001
    Assignee: Chong Kun Dang Corp.
    Inventors: Sang Sup Jew, Hee Soon Lee, Joon Kyum Kim, Kwang Dae Ok, Kyeong Hoi Cha, Myoung Goo Kim, Kwang Kyun Lee, Jong Min Kim, Hee Jin Kim, Jeong Mi Hah
  • Intermediates for the synthesis of camptothecin derivatives
    Patent number: 6177568
    Abstract: Intermediates for the synthesis of camptothecin of the formula II wherein: R1 is —(CH2)2NR1R2, where R1 is an amino protecting group and R2 is C2-C5 alkyl, hydroxyethyl or acetoxyethyl group, and of the formula III wherein: n is 1 or 2; R3 is hydrogen or —OR4, where R4 is hydrogen, —COR5, —CONHR6 or CH2OR7, where R5 is methyl or —CH2OCH3, R6 is isopropyl, phenyl or —CH2CH2Cl, and R7 is methyl, ethyl or —CH2CH2OCH3; with the proviso that when n is 2, R3 is not hydrogen.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: January 23, 2001
    Assignee: Chong Kun Dang Corp.
    Inventors: Sang Sup Jew, Hee Soon Lee, Joon Kyum Kim, Kwang Dae Ok, Kyeong Hoi Cha, Myoung Goo Kim, Kwang Kyun Lee, Jong Min Kim, Hee Jin Kim, Jeong Mi Hah
  • Medicines for treating dementia or cognitive disorder, which comprises asiatic acid derivatives
    Patent number: 6169112
    Abstract: Disclosed is the use of 2-oxoasiatic acid in the treatment of dementia or cognitive disorders.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: January 2, 2001
    Assignee: Dong Kook Pharmaceutical Co., Ltd.
    Inventors: Sang Sup Jew, Hyeung Geun Park, Hee Doo Kim, Young Hoon Jung, Young Choong Kim, So Ra Kim, Sung Ki Seo, Tae Gyu Nam, Ducky Han, Chi Hyoung Yoo, Doo Yeon Lim, Jeong Hoon Kim, Hee Man Kim, Jae Ho Park, Pil Jong Shim, Ju Eun Jung, Hee Young Beom
  • Asiatic acid derivatives having modified A-ring
    Patent number: 6071898
    Abstract: Asiatic acid derivatives having a modified A-ring, as represented by formula 1 are disclosed. ##STR1## Pharmaceutical compositions and methods of treating cancer and hepatotoxicity utilizing compounds of formula 1 are also disclosed.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: June 6, 2000
    Assignee: Dong Kook Pharmaceutical Co., Ltd.
    Inventors: Sang Sup Jew, Hyeung Geun Park, Hee Doo Kim, Young Hoon Jung, Young Choong Kim, Hong Pyo Kim, Mi Kyeong Lee, Hee Sung Choi, Eung Seok Lee, Chi Hyoung Yoo, Doo Yeon Lim, Jeong Hoon Kim, Hee Man Kim, Sung Ki Seo, Tae Gyu Nam, Ducky Han, Pil Jong Shim, Ju Eun Jung, Hee Young Beom
  • 2-hydroxypropionic acid derivative and its manufacturing method
    Patent number: 6030993
    Abstract: This invention relates to a novel 2-hydroxypropionic acid derivative and its manufacturing method. Based on its mechanism to inhibit the CPT I, 2-hydroxypropionic acid derivative of this invention has blood glucose lowering effects so that the derivative may be effectively used as an antidiabetic agent having remarkable antidiabetic activity and fewer side effects.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: February 29, 2000
    Assignees: Sang Sup JEW, Kwang Ho KO, Bak Kwang KIM
    Inventors: Sang Sup Jew, Suk Ku Kang, Deuk Joon Kim, Won Ki Kim, Hwa Jung Kim, Chang Kiu Moon, Jeong Hill Park, Young Ger Suh, Bong Jin Lee, Jee Woo Lee, Ki Hwa Jung, Moon Woo Chun, Hoon Huh, Eung Seok Lee, Hyung Ook Kim, Eun Kyung Kim, Sung Jin Kim, Jae Hoon Cheong, Kwang Ho Ko, Bak Kwang Kim
  • Oxirane carboxylic acid derivative and its manufacturing method
    Patent number: 6013666
    Abstract: This invention relates to a novel oxirane carboxylic acid derivative and thereof manufacturing method. Based on thereof mechanism to inhibit the CPT I, oxirane carboxylic acid derivative of this invention has blood glucose lowering effects so that the derivative may be effectively used as an antidiabetic agent having remarkable antidiabetic activity and less side effects.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: January 11, 2000
    Assignees: Sang Sup Jew, Kang Ho Kang, Bak Kwang Kim
    Inventors: Sang Sup Jew, Suk Ku Kang, Deuk Joon Kim, Won Ki Kim, Hwa Jung Kim, Chang Kiu Moon, Jeong Hill Park, Young Ger Suh, Bong Jin Lee, Jee Woo Lee, Ki Hwa Jung, Moon Woo Chun, Hoon Huh, Eung Seok Lee, Hyung Ook Kim, Eun Kyung Kim, Sung Jin Kim, Jae Hoon Cheong, Kwang Ho Ko, Bak Kwang Kim
  • Asiatic acid derivatives its manufacturing method and dermatological agent containing it
    Patent number: 5834437
    Abstract: The object of the present invention is to provide asiatic acid derivatives, its pharmaceutically acceptable salts or esters.Asiatic acid, its trisaccharide asiaticoside and mddecassic acid, extracted from Centella asiatica have been used for a long time in the management of skin scars and chronic ulcers. In this invention, asiatic acid derivatives synthesized from asiatic acid show excellent wound-healing properties.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: November 10, 1998
    Assignee: Dong Kook Pharmaceutical Co., Ltd.
    Inventors: Sang-Sup Jew, Hee-Doo Kim, Young-Hoon Jung, Eun-Hee Park, Sung-Ki Seo, Tae-Gyu Nam, Duc-Ky Hahn, Jae-Ho Park, Pil-Jong Sim, Min-Jung Lim, Kyung-Haw Lim