Patents by Inventor Jack B. Nielsen

Jack B. Nielsen 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).

  • Color clarification methods
    Patent number: 5919697
    Abstract: The invention is directed to agents used in the retention of color values on fabrics formed from cellulose fibers (color clarification agents) and to a method for treatment of such fabrics. The method comprises treating a colored fabric with a cellulase and a polymer selected from the group consisting of a polyalkylene oxide graft polymer, a polyamino acid polymer, and a carboxylated polysaccharide polymer in an amount effective to preserve the color of the fabric after at least one wash cycle.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: July 6, 1999
    Assignees: Novo Nordisk A/S, Novo Nordisk Biochem North America, Inc.
    Inventors: Sonja I. Salmon, Anita R. Mishra, Jack B. Nielsen