Patents by Inventor Alain Piasco

Alain Piasco 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).

  • 19-nor-pregnene derivatives and pharmaceuticals containing such derivatives
    Patent number: 6180803
    Abstract: The invention relates to compounds of the formula: in which R1, R2, R3, R4, R5, R6, n and X are as defined in the specification, and to pharmaceutical compositions containing them. These compounds are excellent progestogens which are devoid of residual androgenic activity.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: January 30, 2001
    Assignee: Laboratoire Theramex
    Inventors: Alain Piasco, Jean Lafay, R{acute over (e)}mi Delansorne, Jacques Paris, Jean-Claude Pascal
  • 3-keto-nor-pregnenes substituted in the 6-position and treatment of menopause
    Patent number: 5795884
    Abstract: A 3-keto-19-nor-pregnene of the formula ##STR1## wherein R is selected from the group consisting of hydroxy, acyloxy of an organic carboxylic acid, lower alkoxy, halogen and lower alkyl, R' is selected from the group consisting of hydrogen and halogen, or R and R' together form oxygen, R.sub.3 is selected from the group consisting of methyl, --OH and lower acyloxy of an organic carboxylic acid and the dotted line is an optional double bond in the 6,7-position useful for treating the symptoms of menopause in females.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: August 18, 1998
    Assignee: Laboratoire Theramex SA
    Inventors: Robert Bucourt, Alain Piasco, Claude Tchernatinsky
  • Derivatives of 19-nor progesterone; process for producing them and the pharmaceutical compositions incorporating them
    Patent number: 5223492
    Abstract: This invention relates to the field of chemistry and more precisely to the field of medicinal Chemistry.It has specifically as subject matter the compounds of general formula I ##STR1## wherein R is a hydrogen, a lower alkyl radical a methoxymethyl, a tetrahydropyranyl or the acyl residue of an organic carboxylic.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: June 29, 1993
    Inventors: Nejib M. Nasraoui, Alain Piasco