Patents by Inventor Frieder Gnad

Frieder Gnad 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 manufacture of dabigatran etexilate
    Patent number: 8993770
    Abstract: An improved process for preparing dabigatran etexilate, as well as analogous compounds of formula 7, is described.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: March 31, 2015
    Assignee: Boehringer Ingelheim International GbmH
    Inventors: Frieder Gnad, Stefan Schmitt, Hermann Mueller-Boetticher, Helmut Heitger, Seigfried Meineck, Rolf Dach, Ingo Heddesheimer
  • PROCESS FOR THE MANUFACTURE OF DABIGATRAN ETEXILATE
    Publication number: 20130158270
    Abstract: An improved process for preparing dabigatran etexilate, as well as analogous compounds of formula 7, is described.
    Type: Application
    Filed: February 15, 2013
    Publication date: June 20, 2013
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Frieder GNAD, Stefan SCHMITT, Hermann MUELLER-BOETTICHER, Helmut HEITGER, Seigfried MEINECK, Rolf DACH, Ingo HEDDESHEIMER
  • Process for the manufacture of dabigatran etexilate
    Patent number: 8399678
    Abstract: An improved process for preparing dabigatran etexilate, as well as analogous compounds of formula 7, is described.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: March 19, 2013
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Frieder Gnad, Stefan Schmitt, Hermann Mueller-Boetticher, Helmut Heitger, Siegfried Meineck, Rolf Dach, Ingo Heddesheimer
  • PROCESS FOR THE MANUFACTURE OF DABIGATRAN ETEXILATE
    Publication number: 20110275824
    Abstract: An improved process for preparing dabigatran etexilate, as well as analogous compounds of formula 7, is described.
    Type: Application
    Filed: November 4, 2010
    Publication date: November 10, 2011
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Frieder GNAD, Stefan SCHMITT, Hermann MUELLER-BOETTICHER, Helmut HEITGER, Siegfried MEINECK, Rolf DACH, Ingo HEDDESHEIMER