Patents by Inventor George Schlowsky

George Schlowsky 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).

  • Production of high purity alkaloids
    Patent number: 4818533
    Abstract: A method for extracting valuable alkaloid materials from plants containing the same comprising slurrying the comminuted plant material in a mixture of water and a cosolvent at a pH of 8.5, adding a nonpolar, water-insoluble, solvent to dissolve the alkaloid, washing the nonpolar phase with acidulated water to convert the alkaloid to the imminium ion or acid salt form, precipitating the alkaloids, and recovering and drying the alkaloid.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: April 4, 1989
    Assignee: Vipont Pharmaceutical, Inc.
    Inventors: Richard T. Boulware, George Schlowsky