Patents by Inventor Leeyan Huang

Leeyan Huang 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).

  • Substituted hexahydrobenzopyran derivatives as angiotensin II antagonists
    Patent number: 5276054
    Abstract: Substituted hexahydrobenzopyran derivatives of the Formulae A, B, or C are useful as angiotensin II antagonists: ##STR1##
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: January 4, 1994
    Assignee: Merck & Co., Inc.
    Inventors: Maria T. Diez, Michael A. Goetz, Robert A. Giacobbe, Otto D. Hensens, Leeyan Huang, Isabel Martin, E. Tracy T. Jones, Siobhan Stevens-Miles, Yu L. Kong
  • Dopamine .beta.-hydroxylase inhibitors
    Patent number: 4487761
    Abstract: Two fermentation isolates, C.sub.7 H.sub.9 NO.sub.4 and C.sub.6 H.sub.7 NO.sub.3, presumably trihydroxy, methyl-pyridine derivatives, are inhibitors of dopamine .beta.-hydroxylase. These natural product compounds are produced by fermentation of Streptoverticillium hiroshimense and each may prove useful as antihypertensive agents.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: December 11, 1984
    Assignee: Merck & Co., Inc.
    Inventors: Lucille J. Cole, Leeyan Huang, Jerrold M. Liesch