Patents by Inventor Siegfried Bolenz

Siegfried Bolenz 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 removing off-notes from cocoa products
    Patent number: 6025002
    Abstract: A method for treating fermented cocoa beans to produce acid-reduced, roasted, de-shelled cocoa possessing a decreased level of 2-methoxy-3-isopropylpyrazine (MIPP). The method involves the treatment of cocoa beans with steam at a temperature within the range of from about 100.degree. C. to about 140.degree. C. for a period of time of from about 10 minutes to about 120 minutes.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: February 15, 2000
    Assignee: Kraft Foods, Inc.
    Inventors: Wilhardi J. Holscher, Ute-Christine Konopka, Otto G. Vitzthum, Siegfried Bolenz, Marie Caroline Grosso, Klaus D. Koch