Patents by Inventor Ulrich Stifter

Ulrich Stifter 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).

  • Patent number: 6235505
    Abstract: Disclosed is the use of amylopectin potato starch obtained from potatoes whose amylose formation is inhibited through breeding, or through genetic engineering or other molecular biological processes, as starting material for a process for production of cyclodextrin from potato starch by reaction with cyclodextrin glycosyltransferase. This starch starting material combines the positive effects of natural amylopectin starch with those of potato starch and is distinguished, among other properties, through low lipid and protein content and therefore higher purity. The yield of cyclodextrins is surprisingly high. In this way cyclodextrin can be produced at much lower cost than previously and can therefore be used for the first time on a larger scale in technical processes.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: May 22, 2001
    Assignee: Südzucker Aktiengesellschaft
    Inventors: Dietmar Grüll, Ulrich Stifter