Patents by Inventor Bengt-Erik Knubb

Bengt-Erik Knubb 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).

  • Cationic polysaccharide, its preparation and use
    Patent number: 8304533
    Abstract: The present invention relates to polysaccharide, preferably starch, of high purity having cationic degree of substitution over 0.50 and bound nitrogen index after cationization reaction stage over 0.75, and to preparation thereof as well as to its use in making of paper or paperboard.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: November 6, 2012
    Assignee: BASF SE Ludwigshafen
    Inventors: Asko Karppi, Bengt-Erik Knubb, Holger Reinicke
  • Cationic polysaccharide, its preparation and use
    Publication number: 20100282425
    Abstract: The present invention relates to polysaccharide, preferably starch, of high purity having cationic degree of substitution over 0.50 and bound nitrogen index after cationisation reaction stage over 0.75, and to preparation thereof as well as to its use in making of paper or paperboard.
    Type: Application
    Filed: April 24, 2007
    Publication date: November 11, 2010
    Inventors: Asko Karppi, Bengt-Erik Knubb, Holger Reinicke