Patents by Inventor Bong Y. Lee

Bong Y. Lee 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).

  • Dihydropyridine derivatives
    Patent number: 5089624
    Abstract: The present invention relates to 1,4-dihydropyridine of the formula(I) ##STR1## wherein R.sup.1 represents a phenyl group which may be substituted by one or two substituents selected from halogeno, nitro, trifluoromethyl and difluoromethoxy group, or 2,1,3-benzoxadiazole-4-yl group, R.sup.2 represents a lower alkyl or phenyl group, R.sup.3 represents a lower alkyl group and Y represents an oxygen or sulfur atom.The compounds of the formula(I) can be employed for treatment or prevention of cardiovascular diseases.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: February 18, 1992
    Assignee: Yuhan Corporation
    Inventors: Choong S. Kim, Jung J. Suh, Bong Y. Lee, Chang S. Kim, Jong W. Lee, Byung C. Kim, Byung H. Han