Patents by Inventor Nina Eriksen

Nina Eriksen 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).

  • Stabilized enzymes and detergent compositions
    Patent number: 5858757
    Abstract: The invention relates to stabilized subtilisin proteases wherein one or more prolines is substituted for a native amino acid at stabilizing positions defined both by the range of the dihedral angles in the primary structure present at the substitution site and by selected characteristics of the protease secondary structure in the vicinity of the substitution site, to nucleotide sequences that encode the stabilized proteases, and to host organisms that contain the nucleotide sequences encoding the stabilized proteases.
    Type: Grant
    Filed: November 11, 1993
    Date of Patent: January 12, 1999
    Assignee: Novo Nordisk A/S
    Inventors: Claus Von Der Osten, Sven Branner, Allan Svendsen, Lisbeth Hedeg.ang.rd, Nina Eriksen, Maarten Robert Egmond, Eric Casteleijn
  • Detergent compositions comprising a modified subtilisin
    Patent number: 5631217
    Abstract: This invention relates to enzymes, to rDNA techniques applicable for example to their production, to mutated genes, vectors and mutant and transformed microorganisms useful in their production, and to their uses including for example enzymatic detergent and cleaning compositions containing them.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: May 20, 1997
    Assignees: Novo Nordisk A/S, Unilever PLC
    Inventors: Sven Branner, Sven Hastrup, Nina Eriksen, Poul Lindegaard, Ole H. Olsen, Eric Casteleijn, Maarten R. Egmond, Johan Haverkamp, Wouter Musters, Jakob de Vlieg
  • Subtilisin mutants
    Patent number: 5482849
    Abstract: This invention relates to enzymes, to rDNA techniques applicable for example to their production, to mutated genes, vectors and mutant and transformed microorganisms useful in their production, and to their uses including for example enzymatic detergent and cleaning compositions containing them.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: January 9, 1996
    Assignee: Novo Nordisk A/S
    Inventors: Sven Branner, Sven Hastrup, Nina Eriksen, Poul Lindegaard, Ole H. Olsen, Eric Casteleijn, Maarten R. Egmond, Johan Haverkamp, Wouter Musters, Jakob de Vlieg
  • Liquid enzymatic detergent composition
    Patent number: 5286404
    Abstract: The solubility of an enzyme in a liquid detergent can be improved by chemical modification of free primary amino groups in the enzyme while still preserving the enzyme activity. The modification preferably involves aldehyde treatment, acylation, or alkylation of the amino groups.
    Type: Grant
    Filed: February 27, 1992
    Date of Patent: February 15, 1994
    Assignee: Novo Nordisk A/S
    Inventors: Nina Eriksen, Gitte Pedersen