Patents by Inventor Julia Ditkovitch

Julia Ditkovitch 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).

  • Letrozole production process
    Patent number: 7538230
    Abstract: Provided is a method for preparing letrozole, which includes reacting an activated bis-(4-cyanophenyl)-methane with a triazole to produce letrozole, and, optionally, purifying the letrozole. Also provided are highly pure letrozole, and a method of purifying letrozole, which method includes precipitating letrozole, e.g., by selective precipitation from a reaction mixture and/or by subjecting the letrozole to one or more crystallizations.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: May 26, 2009
    Assignee: Chemagis Ltd.
    Inventors: Oded Friedman, Boris Freger, Olga Etlin, Julia Ditkovitch, Edna Danon, Yana Seryi, Guy Davidi, Oded Arad, Joseph Kaspi
  • Letrozole production process
    Publication number: 20070112202
    Abstract: Provided is a method for preparing letrozole, which includes reacting an activated bis-(4-cyanophenyl)-methane with a triazole to produce letrozole, and, optionally, purifying the letrozole. Also provided are highly pure letrozole, and a method of purifying letrozole, which method includes precipitating letrozole, e.g., by selective precipitation from a reaction mixture and/or by subjecting the letrozole to one or more crystallizations.
    Type: Application
    Filed: November 14, 2005
    Publication date: May 17, 2007
    Applicant: CHEMAGIS LTD.
    Inventors: Oded Friedman, Boris Freger, Olga Etlin, Julia Ditkovitch, Edna Danon, Yana Seryi, Guy Davidi, Oded Arad, Joseph Kaspi