Patents by Inventor Umar Khan Mohammed

Umar Khan Mohammed 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 Escitalopram
    Patent number: 7939680
    Abstract: The present invention relates to an improved process for the preparation of Escitalopram of the Formula (I), which comprises, isolation of Diol compound as an oxalate salt, resolution of Diol compound and cyclization of resolved compound of Formula (VII). The present invention provides a process to obtain pure Diol compound by preparing its Oxalate salt, which is useful for resolution of enantiomers.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: May 10, 2011
    Assignee: Aurobindo Pharma Ltd.
    Inventors: Vipin Kumar Kaushik, Umar Khan Mohammed, Sivakumaran Meenakshisunderam
  • process for the preparation of escitalopram
    Publication number: 20090099375
    Abstract: The present invention relates to an improved process for the preparation of Escitalopram of the Formula (I), which comprises, isolation of Diol compound as an oxalate salt, resolution of Diol compound and cyclization of resolved compound of Formula (VII). The present invention provides a process to obtain pure Diol compound by preparing its Oxalate salt, which is useful for resolution of enantiomers.
    Type: Application
    Filed: July 20, 2006
    Publication date: April 16, 2009
    Inventors: Vipin Kumar Kaushik, Umar Khan Mohammed, Sivakumaran Meenakshisunderam