Patents by Inventor Louis Sparfel

Louis Sparfel 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).

  • N-substituted 2-aminomethylene-1,3-indanediones for treating arterial hypertension and spasmodic conditions
    Patent number: 4758561
    Abstract: The present invention to pharmaceutical composition comprising an effective amount of products having the structural formula ##STR1## where R.sub.1 is a hydrogen atom or a lower alkyl group such as methyl or ethyl,R.sub.2 is a straight or branched cyclopropylmethyl, 2-furyl methyl, benzyl, phenyl or lower alkyl group from C.sub.1 to C.sub.4 such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertiary butyl; the NR.sub.1 R.sub.2 group can also represent a nitrogenous heterocyclic compound N(CH.sub.2).sub.n in which n can be any value between 4 and 6.The products are useful in human and veterinary therapy because of their anti-inflammatory, diuretic, bronchodilating, anticholinergic, antispasmodic and antidepressant properties.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: July 19, 1988
    Assignee: Societe Cortial, S.A.
    Inventors: Guillaume Le Baut, Louis Sparfel, Marie-Helene Creuzet, Claude Feniou, Henri Pontagnier, Gisele Prat
  • Therapeutic application of N-substituted 2-aminomethylene-1,3-indanediones
    Patent number: 4757067
    Abstract: The present invention to pharmaceutical composition comprising an effective amount of products having the structural formula ##STR1## where R.sub.1 is a hydrogen atom or a lower alkyl group such as methyl or ethyl,R.sub.2 is a straight or branched cyclopropylmethyl, 2-furyl methyl, benzyl, phenyl or lower alkyl group from C.sub.1 to C.sub.4 such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertiary butyl; the NR.sub.1 R.sub.2 group can also represent a nitrogenous heterocyclic compound N(CH.sub.2).sub.n in which n can be any value between 4 and 6.The products are useful in human and veterinary therapy because of their anti-inflammatory, diuretic, bronchodilating, anticholinergic, antispasmodic and antidepressant properties.
    Type: Grant
    Filed: January 21, 1987
    Date of Patent: July 12, 1988
    Assignee: Societe Cortial, S.A.
    Inventors: Guillaume Le Baut, Louis Sparfel, Marie-Helene Creuzet, Claude Feniou, Henri Pontagnier, Gisele Prat