Patents by Inventor Michelle A. De Crosta

Michelle A. De Crosta 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).

  • Extraction of compounds from plant materials using supercritical fluids
    Patent number: 5252729
    Abstract: The present invention is directed toward a process for extracting compounds from plant material, comprisinga) contacting hydrolyzed plant material with a supercritical fluid and optionally with a co-solvent and p1 b) recovering the compound from the supercritical fluid.In another embodiment, the present invention is directed toward a process for removing a compound from plant material, comprising contacting the plant material with an acid, a supercritical fluid and a co-solvent, and recovering the compound from the supercritical fluid. The sterols, diosgenin and sarsapogenin, are efficiently extracted from barbasco root and Yucca seed, respectively.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: October 12, 1993
    Assignee: Schering Corporation
    Inventors: Michelle A. De Crosta, Peter Kabasakalian, Frederick J. F. Honold, Sr.