Patents by Inventor Seung H. Cheon

Seung H. Cheon 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).

  • 5-Aryl-substituted-2,3-dihydro-imidazo(1,2-a)furo- and thieno pyridines
    Patent number: 5141932
    Abstract: The invention discloses certain 5-aryl-substituted-2,3-dihydro-imidazo[1,2-a]furo- and thieno pyridines useful as PAF receptor antagonists and for treating tumors, pharmaceutical compositions containing said compounds as an active ingredient thereof and a method of using such compositions for inhibiting PAF-mediated bronchoconstriction and extravasation, for controlling hyperreactive airways, for protecting against endotoxin-induced hypotension and death and for treating tumors.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: August 25, 1992
    Assignee: Sandoz Pharmaceuticals Corp.
    Inventors: William J. Houlihan, Seung H. Cheon
  • 5-aryl-substituted-2,3-dihydro-imidazo[1,2-a]furo- and thieno pyridines
    Patent number: 4992428
    Abstract: The invention discloses certain 5-aryl-substituted,2,3-dihydro-imidazo[1,2-a]furo- and thieno pyridines useful as PAF receptor antagonists and for treating tumors, pharmaceutical compositions containing said compounds as an active ingredient thereof and a method of using such compositions for inhibiting PAF-mediated bronchoconstriction and extravasation, for controlling hyperreactive airways, for protecting against endotoxin-induced hypotension and death and for treating tumors.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: February 12, 1991
    Assignee: Sandoz Pharm. Corp.
    Inventors: William J. Houlihan, Seung H. Cheon
  • 6-aryl-substituted-4H-thieno(2,3-e)(1,2,4)triazolo(3,4-c)(1,4)diazepines
    Patent number: 4914096
    Abstract: The invention discloses certain 6-aryl-substituted-4H-thieno[2,3-e][1,2,4]triazolo[3,4-c][1,4]diazepines useful as PAF inhibitors, pharmaceutical compositions containing said compounds as an active ingredient thereof and a method of using such compositions for inhibiting PAF-induced blood platelet aggregation, PAF-mediated bronchoconstriction and extravasation, PAF-induced hypotension, PAF-induced ischemic bowel disease and PAF-mediated, endotoxin induced lung injury, for controlling hyperreactive airways and for protecting against endotoxin-induced hypotension and death.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: April 3, 1990
    Assignee: Sandoz Pharmaceuticals Corp.
    Inventors: William J. Houlihan, Seung H. Cheon