Patents by Inventor Sigmund L. Klug

Sigmund L. Klug 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).

  • High molecular weight gallotannins as a stain-inhibiting agent for food dyes
    Patent number: 5639500
    Abstract: Selected high molecular weight gallotannins are incorporated into FD&C dye-containing foodstuffs to prevent staining of polymeric substrates such as wool or nylon rugs and clothing. Gallotannins from sumac leaves and Chinese nut galls are effective at levels of 50 ppm or below.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: June 17, 1997
    Assignee: Kraft Foods, Inc.
    Inventors: Robert W. Fusi, Gary H. Kestenbaum, Sigmund L. Klug
  • High molecular weight gallotannins as a stain-inhibiting agent for food dyes
    Patent number: 5571551
    Abstract: Selected high molecular weight gallotannins are incorporated into FD&C dye-containing foodstuffs to prevent staining of polymeric substrates such as wool or nylon rugs and clothing. Gallotannins from sumac leaves and Chinese nut galls are effective at levels of 50 ppm or below. This invention is useful in foodstuffs which are not subject to oxidation.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: November 5, 1996
    Assignee: Kraft Foods, Inc.
    Inventors: Robert W. Fusi, Gary H. Kestenbaum, Sigmund L. Klug
  • Iron-fortified soluble coffee and method for preparing same
    Patent number: 4006263
    Abstract: Liquid coffee extract having a solids concentration of from about 10 to 30% by weight is maintained at a temperature below about 70.degree. F for a period of time sufficient to permit precipitation of materials which interact with elemental iron. The tempered extract is clarified, such as by centrifugation, fortified with nutritive ingredients including a soluble iron compound containing assimilable iron, and dried, such as by spray drying.
    Type: Grant
    Filed: February 20, 1973
    Date of Patent: February 1, 1977
    Assignee: General Foods Corporation
    Inventors: Sigmund L. Klug, Frederick J. Patrizio, William J. Einstman