Patents by Inventor Peter Hans Weinert

Peter Hans Weinert 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).

  • Aqueous crystallization of xylitol
    Patent number: 3985815
    Abstract: A process for obtaining crystalline xylitol substantially free of xylose from a mixture of xylose and xylitol by providing an aqueous solution of about 50 to 75 weight percent xylitol, no more than about 5 weight percent xylose and about 20 to 45 weight percent water and fractionally crystallizing xylitol from the aqueous solution to provide crystalline xylitol containing no more than about 0.10 weight percent xylose.
    Type: Grant
    Filed: October 31, 1974
    Date of Patent: October 12, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Gerald Myer Jaffe, Peter Hans Weinert