Patents by Inventor Birgit Hoffmann

Birgit Hoffmann 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).

  • Solubilization of tea in cold water with catechin
    Patent number: 4680193
    Abstract: A process for the production of a cold-water soluble instant tea which comprises extracting black tea leaves with hot water, concentrating and cooling the hot-water extract of black tea leaves to precipitate substantially all the tea cream characterized in that the concentrated, cooled extract of black tea leaves is treated with an appropriate quantity of a catechin or mixture of catechins capable of rendering the tea cream soluble in cold water at from 10.degree. C. to 30.degree. C.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: July 14, 1987
    Assignee: Nestec S.A.
    Inventors: Tito-Livio Lunder, Birgit Hoffmann, Corine-Madeleine Nielsen