Patents by Inventor Robert M. Guinn

Robert M. Guinn 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 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