Patents by Inventor Andrea Vanossi

Andrea Vanossi 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 preparing 11-methylene-18-methyl-estr-4-en-3, 17-dione, useful as intermediate compound for the synthesis of molecules having pharmacological activity
    Patent number: 9422326
    Abstract: There is described a process for the industrial synthesis of 11-methylene-18-methyl-estr-4-en-3,17-dione, a compound having the structure formula (I) depicted below: (Formula I) (I) useful as intermediate compound in the synthesis of the progestin compounds Desogestrel and Etonogestrel.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: August 23, 2016
    Assignee: INDUSTRIALE CHIMICA S.r.l.
    Inventors: Roberto Lenna, Edoardo Mariani, Andrea Vanossi
  • Process for the preparation of drospirenone
    Patent number: 9394334
    Abstract: It is described of a process for the preparation of drospirenone, the compound of formula 1 shown below, a synthetic steroid with progestogenic, antimineralocorticoid and antiandrogenic activity, useful for preparing pharmaceutical compositions having contraceptive action, starting from 17?-(3-hydroxypropyl)-6?,7?;15?,16?-dimethylene-5?-androstane-3?,5,17?-triol.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: July 19, 2016
    Assignee: INDUSTRIALE CHIMICA S.R.L.
    Inventors: Roberto Lenna, Andrea Vanossi
  • Process for Preparing 11-Methylene-18-Methyl-Estr-4-En-3, 17-Dione, Useful as Intermediate Compound for the Synthesis of Molecules Having Pharmacological Activity
    Publication number: 20150239925
    Abstract: There is described a process for the industrial synthesis of 11-methylene-18-methyl-estr-4-en-3,17-dione, a compound having the structure formula (I) depicted below: (Formula I) (I) useful as intermediate compound in the synthesis of the progestin compounds Desogestrel and Etonogestrel.
    Type: Application
    Filed: September 3, 2013
    Publication date: August 27, 2015
    Inventors: Roberto Lenna, Edoardo Mariani, Andrea Vanossi
  • PROCESS FOR THE PREPARATION OF DROSPIRENONE
    Publication number: 20140343275
    Abstract: It is described of a process for the preparation of drospirenone, the compound of formula 1 shown below, a synthetic steroid with progestogenic, antimineralocorticoid and antiandrogenic activity, useful for preparing pharmaceutical compositions having contraceptive action, starting from 17?-(3-hydroxypropyl)-6?,7?;15?,16?-dimethylene-5?-androstane-3?,5,17?-trioI.
    Type: Application
    Filed: November 21, 2012
    Publication date: November 20, 2014
    Inventors: Roberto Lenna, Andrea Vanossi