Patents by Inventor Udo Kienle

Udo Kienle 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 of making a natural sweetener based on Stevia rebaudiana, and use thereof
    Patent number: 5112610
    Abstract: A method of making a natural sweetener based on Stevia rebaudiana includes extraction of plant parts of Stevia rebaudiana with a solvent to provide an extract, and subjecting the extract to an extraction with a supercritical gas to obtain an extraction residue which is freed from undesired and taste-impairing constituents.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: May 12, 1992
    Inventor: Udo Kienle