Patents by Inventor Giancarlo Biffi

Giancarlo Biffi 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 bosentan
    Patent number: 9233936
    Abstract: The invention concerns a new process for the preparation of bosentan or bosentan monohydrate by reaction of compound of Formula II with ethylene glycol in the presence of potassium bases and the potassium salt of bosentan.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: January 12, 2016
    Assignee: SIFAVITOR S.R.L.
    Inventors: Giancarlo Biffi, Lazzaro Feliciani, Enrico Viscardi
  • PROCESS FOR THE PREPARATION OF BOSENTAN
    Publication number: 20120041200
    Abstract: The invention concerns a new process for the preparation of bosentan or bosentan monohydrate by reaction of compound of Formula II with ethylene glycol in the presence of potassium bases and the potassium salt of bosentan.
    Type: Application
    Filed: March 3, 2010
    Publication date: February 16, 2012
    Inventors: Giancarlo Biffi, Lazzaro Feliciani, Enrico Viscardi
  • PROCESS FOR THE PREPARATION OF PROSTAGLANDIN DERIVATIVES
    Publication number: 20120016136
    Abstract: The invention concerns a new process for the preparation of prostaglandin derivatives, in particular prostaglandin F2? derivatives, for example bimatoprost, latanoprost and travoprost, the new intermediates of said process and their use in the preparation of prostagblandin derivatives.
    Type: Application
    Filed: February 18, 2010
    Publication date: January 19, 2012
    Inventors: Giancarlo Biffi, Alessandro D'Alfonso, Lazzaro Feliciani, Alessio Porta, Giovanni Vidari, Enrico Viscardi, Giuseppe Zanoni
  • ESTERIFICATION PROCESS OF PROSTAGLANDINS AND ANALOGUES THEREOF
    Publication number: 20110124064
    Abstract: The invention relates to a process for enzymatically catalyzed esterification of prostaglandins or analogues thereof.
    Type: Application
    Filed: May 8, 2009
    Publication date: May 26, 2011
    Inventors: Giancarlo Biffi, Lazzaro Feliciani, Alessandro D'Alfonso, Alessio Porta, Giuseppe Zanoni