Patents by Inventor Hyeong Su Sim

Hyeong Su Sim 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).

  • 2,5-pyridinedicarboxylic acid derivatives
    Patent number: 6306860
    Abstract: Anti-viral agents of formula (1) have been identified. Their preparation method is described. These 2,5-pyridinedicarboxylic acid derivatives or their pharmaceutically acceptable salts are useful in countering the proliferation of viruses such as hepatitis B virus and human immunodeficiency virus.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: October 23, 2001
    Assignee: Dong Wha Pharm. Inc. Co., Ltd.
    Inventors: Sung Joon Yoon, Sang Wook Lee, Hyeong Su Sim, Yong Kyun Park, Wang Yong Yang, Jong Woo Kim, Jae Jin Han, Je In Yoon, Sang Jin Park, Hee Jeoung Park, Dong Hyuk Sin, Hwan Bong Chang
  • Terephthalamide derivatives
    Patent number: 5922871
    Abstract: The present invention relates to novel terephthalamide derivatives and in particular to novel terephthalamide derivatives of the following formula 1, its pharmaceutically acceptable salts as antiviral agents having remarkable inhibitory actions against the proliferation of various viruses including HIV and HBV, and preparing method thereof ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same as defined in the detailed description of the present invention.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: July 13, 1999
    Assignee: Dongwha Pharmaceutical Ind. Co., Ltd.
    Inventors: Sung Joon Yoon, Yong Ho Chung, Sang Wook Lee, Hyeong Su Sim, Yong Kyun Park, Jong Woo Kim, Yong Huh, Jae In Yoon, Sang Jin Park