Patents by Inventor Hae Ran Yun

Hae Ran Yun 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).

  • Arylsulfonylimidazolone derivatives as an antitumor agent
    Patent number: 5932742
    Abstract: The present invention relates to a novel arylsulfonylimidazolone derivative represented by the following formula (I) which shows a superior antineoplastic activity in contrast to the known sulfonylurea antitumor agents as well as little side effect: ##STR1## and its pharmaceutically acceptable salt and stereoisomer, in which - -, R.sub.1, and R.sub.2 are as defined in the specification.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: August 3, 1999
    Assignee: Dong Wha Pharm. Ind. Co., Ltd.
    Inventors: Sung June Yoon, Yong Ho Chung, Moon Sun Lee, Dong Rack Choi, Jung A Lee, Hee Soon Lee, Hae Ran Yun, Dug Keun Lee, Eun Yi Moon, Hyun Sook Hwang, Chung Ha Choi, Sang Hun Jung
  • Arylsulfonylimidazolone derivatives as an antitumor agent
    Patent number: 5929103
    Abstract: The present invention relates to a novel arylsulfonylimidazolone derivative represented by the following formula (I) which shows a superior antineoplastic activity in contrast to the known sulfonylurea antitumor agents as well as little side effect: ##STR1## and its pharmaceutically acceptable salt and stereoisomer, in which ----, R.sub.1, and R.sub.2 are as defined in the specification.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: July 27, 1999
    Assignee: Dong Wha Pharm. Ind. Co., Ltd.
    Inventors: Sung June Yoon, Yong Ho Chung, Moon Sun Lee, Dong Rack Choi, Jung A Lee, Hee Soon Lee, Hae Ran Yun, Dug Keun Lee, Eun Yi Moon, Hyun Sook Hwang, Chung Ha Choi, Sang Hun Jung