Patents by Inventor Francisco J. Lopez-Tapia

Francisco J. Lopez-Tapia 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).

  • Pyrimidinedione, pyrimidinetrione, triazinedione and tetrahydroquinazolinedione derivatives as .alpha..sub.1 -adrenergic receptor antagonists
    Patent number: 5859014
    Abstract: Compounds of Formula I: ##STR1## where R.sup.5 is a group selected from Formulae (a), (b), (c) and (d): ##STR2## and the pharmaceutically acceptable salts and N-oxides thereof, are .alpha..sub.1 -adrenergic receptor antagonists useful for the treatment of diseases involving directly or indirectly an obstruction of the lower urinary tract, such as benign prostatic hyperplasia.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: January 12, 1999
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Gary W. Bantle, Todd R. Elworthy, Angel Guzman, Saul Jaime-Figueroa, Francisco J. Lopez-Tapia, David J. Morgans, Jr., Arturo Perez-Medrano, Jurg R. Pfister, Eric B. Sjogren, Francisco X. Talamas