Patents by Inventor Stephen J. Riggi

Stephen J. Riggi 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).

  • 1-Cyano-3-(fluoroalkyl)guanidines for lowering blood pressure
    Patent number: 4524152
    Abstract: 1-Cyano-3-(fluoroalkyl)guanidines of the formula: ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 are the same or different members of the class of hydrogen, fluorine, lower alkyl or lower alkenyl provided that at least one member is fluorine or fluoro-substituted alkyl or alkenyl. These compounds are useful for their biological properties, e.g. in treating elevated blood pressure and Parkinson's disease.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: June 18, 1985
    Assignee: Pennwalt Corporation
    Inventors: Stephen J. Riggi, Robert N. Haszeldine