Patents by Inventor Fiona Geiser

Fiona Geiser 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).

  • METHOD FOR THE PREPARATION OF ESCITALOPRAM
    Publication number: 20110065938
    Abstract: A novel method is provided for the manufacture of escitalopram. The method comprises chromatographic separation of the enantiomers of citalopram or an intermediate in the production of citalopram using a chiral stationary phase such as Chiralpak™ AD or Chiralcel™ OD. Novel chiral intermediates for the synthesis of Escitalopram made by said method are also provided.
    Type: Application
    Filed: May 17, 2010
    Publication date: March 17, 2011
    Applicant: H. Lundbeck A/S
    Inventors: Michael B. Sommer, Ole Nielsen, Hans Petersen, Haleh Ahmadian, Henrik Pedersen, Peter Brosen, Fiona Geiser, James Lee, Geoffrey Cox, Olivier Dapremont, Christina Suteu, Sebastian P. Assenza, Shankar Hariharan, Usha Nair
  • Process for Purifying (-)- 9-Trans-Tetrahydrocannabinol
    Publication number: 20070276031
    Abstract: A process for separating (?)-?9-trans-tetrahydrocannabinol from a mixture of cannabinoids is disclosed. The process comprises at least one chromatographic step wherein a mobile phase passes trough a stationary phase. The stationary phase comprises a derivatised polysaccharide and the mobile phase comprises carbon dioxide.
    Type: Application
    Filed: December 17, 2004
    Publication date: November 29, 2007
    Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Fiona Geiser, John Keenan, Ronald Rossi, Albert Sanchez, John Whelan
  • Method for the preparation of escitalopram
    Publication number: 20050065207
    Abstract: A novel method is provided for the manufacture of escitalopram. The method comprises chromatographic separation of the enantiomers of citalopram or an intermediate in the production of citalopram using a chiral stationary phase such as Chiralpak™ or Chiralcel™ OD. Novel chiral intermediates for the synthesis of Escitalopram made by said method are also provided.
    Type: Application
    Filed: July 12, 2002
    Publication date: March 24, 2005
    Inventors: Michael Sommer, Ole Nielsen, Hans Petersen, Haleh Ahmadian, Henrik Pedersen, Peter Brosen, Fiona Geiser, James Lee, Geoffrey Cox, Olivier Dapremont, Christina Suteu, Sebastian Assenza, Shankar Hariharan, Usha Nair
  • Process for the production of enantiomerically pure or optically enriched sertraline-tetralone using continuous chromatography
    Patent number: 6444854
    Abstract: A process for the production of enantiomerically pure or optically enriched sertraline-tetralone from a mixture containing two enantiomers using continuous chuomatography. The chromatography comprises a liquid mobile phase comprising at least one polar solvent and a solid chiral stationary phase comprising a derivatized polysaccharide that is selected from amylosic, cellulosic, chitosan, xylan, curdlan, and inulan class of polysaccharide.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: September 3, 2002
    Assignee: Chiral Technologies Europe
    Inventors: Oliver Dapremont, Fiona Geiser, Tong Zhang, Subramanian S. Guhan, Robert M. Guinn, George J. Quallich