Patents by Inventor Silvia Piuri

Silvia Piuri 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).

  • PROCESS FOR THE PREPARATION OF DROSPIRENONE
    Publication number: 20120264723
    Abstract: A process is described for the preparation of drospirenone, a synthetic steroid with progestogenic, antimineralocorticoid and antiandrogenic activity, useful for preparing pharmaceutical compositions with contraceptive action; comprising the oxidation of 17?-(3-hydroxypropyl)-6?,7?,15?,16?-dimethylene-5?-androstane-3?,5,17?-triol.
    Type: Application
    Filed: May 30, 2012
    Publication date: October 18, 2012
    Inventors: Francesca COSTANTINO, Roberto LENNA, Silvia PIURI
  • Process for the preparation of drospirenone
    Patent number: 8227596
    Abstract: A process is described for the preparation of drospirenone, a synthetic steroid with progestogenic, antimineralocorticoid and antiandrogenic activity, useful for preparing pharmaceutical compositions with contraceptive action by the oxidation of 17?-(3-hydroxypropyl)-6?,7?,15?, 16?-dimethylene-5?-androstane-3?,5,17?-triol.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: July 24, 2012
    Assignee: Industriale Chimica S.R.L.
    Inventors: Francesca Costantino, Roberto Lenna, Silvia Piuri
  • PROCESS FOR THE PREPARATION OF DROSPIRENONE
    Publication number: 20100331291
    Abstract: A process is described for the preparation of drospirenone, a synthetic steroid with progestogenic, antimineralocorticoid and antiandrogenic activity, useful for preparing pharmaceutical compositions with contraceptive action by the oxidation of 17?-(3-hydroxypropyl)-6?,7?,15?, 16?-dimethylene-5?-androstane-3?,5,17?-triol.
    Type: Application
    Filed: August 4, 2010
    Publication date: December 30, 2010
    Inventors: Francesca COSTANTINO, Roberto LENNA, Silvia PIURI
  • Process for the preparation of drospirenone
    Patent number: 7585971
    Abstract: A process is described for preparing drospirenone, a synthetic steroid with progestogenic, antimineralocorticoid and antiandrogenic activity, useful for the preparation of pharmaceutical compositions with contraceptive action, starting from 5,6?-epoxy-7?-hydroxy-15?,16?-methylene-3?-pivaloyloxy-5?-androstan-17-one.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: September 8, 2009
    Assignee: Industriale Chimica S.R.L.
    Inventors: Francesca Costantino, Roberto Lenna, Silvia Piuri
  • Process For The Preparation Of Drospirenone
    Publication number: 20080207575
    Abstract: A process is described for the preparation of drospirenone, a synthetic steroid with progestogenic, antimineralocorticoid and antiandrogenic activity, useful for preparing pharmaceutical compositions with contraceptive action; comprising the oxidation of 17?-(3-hydroxypropyl)-6?,7?,15?,16?-dimethylene-5?-androstane-3?,5,17?-triol.
    Type: Application
    Filed: November 14, 2005
    Publication date: August 28, 2008
    Inventors: Francesca Costantino, Roberto Lenna, Silvia Piuri
  • Process for the preparation of drospirenone
    Publication number: 20050192450
    Abstract: A process is described for preparing drospirenone, a synthetic steroid with progestogenic, antimineralocorticoid and antiandrogenic activity, useful for the preparation of pharmaceutical compositions with contraceptive action, starting from 5,6?-epoxy-7?-hydroxy-15?,16?-methylene-3?-pivaloyloxy-5?-androstan-17-one.
    Type: Application
    Filed: February 28, 2005
    Publication date: September 1, 2005
    Inventors: Francesca Costantino, Roberto Lenna, Silvia Piuri