Patents by Inventor Heinz G. Roff

Heinz G. Roff 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).

  • Starch intermediate product, a process for producing a starch intermediate product, and a process for further processing of a starch intermediate product
    Patent number: 5430140
    Abstract: A process for producing a starch intermediate product in which the reactive hydroxy groups are activated by swelling and disintegrating starch with dilute aqueous-alkali lye, precipitating the disintegrated starch from an aqueous-alkali solution by adding a precipitant which is miscible with water, separating the precipitated disintegrated starch, which exists in a highly activated form, from the filtrate producing a starch intermediate product, and drying the starch intermediate product. A starch intermediate product produced by this process results in a starch which exists in a highly activated form but which is stable in storage.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: July 4, 1995
    Assignee: EMS-Inventa AG
    Inventors: Rainer Frische, Bernd Best, Hermann Schomann, Heinz G. Roff