Patents Assigned to Sanguibiotech AG
  • Method for obtaining uniform fractions of hyperpolymeric hemoglobins
    Patent number: 5994509
    Abstract: A process for preparing solutions of hemoglobin hyperpolymers by fractionating hemoglobin hyperpolymers having a nonuniform molecular weight distribution according to molecular weight using a polyhydroxy compound to precipitate different fractions of hemoglobin hyperpolymers, wherein each fraction has a different but more uniform molecular weight distribution as compared to the starting hemoglobin hyperpolymers. Preferably, the polyhydroxy compound is a polyalcohol, especially polyethylene glycol.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: November 30, 1999
    Assignee: Sanguibiotech AG
    Inventor: Wolfgang Barnikol
  • Hemoglobins provided with ligands protecting the oxygen binding sites for use as artificial oxygen carriers for direct application in medicine and biology, and method for the preparation thereof
    Patent number: 5985332
    Abstract: Artificial oxygen carrier composed of native or modified hemoglobins for direct biological or medical use, in which the oxygen binding site of the hemoglobin is provided with a protective ligand, preferably carbon monoxide, which does not have to be removed prior to use.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: November 16, 1999
    Assignee: Sanguibiotech AG
    Inventors: Wolfgang Barnikol, Harald Potzschke