Patents by Inventor Paul R. Dragsten

Paul R. Dragsten 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).

  • Modified polysaccharides exhibiting altered biological recognition
    Patent number: 6780852
    Abstract: The invention relates to polysaccharides, polysaccharide conjugates and complexes with altered biological properties, and methods to produce these polysaccharides, polysaccharide conjugates and complexes.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: August 24, 2004
    Inventors: Bo E. Hedlund, Thomas P. Weber, Paul R. Dragsten, Gregory J. Hanson, Philip E. Hallaway
  • Modified polysaccharides exhibiting altered biological recognition
    Publication number: 20030236224
    Abstract: The invention relates to polysaccharides, polysaccharide conjugates and polysaccharide complexes with altered biological properties, methods to produce these polysaccharides, polysaccharide conjugates and polysaccharide complexes and methods to use these conjugates and complexes in the treatment of iron overload or iron deficiency diseases.
    Type: Application
    Filed: May 1, 2003
    Publication date: December 25, 2003
    Inventors: Bo E. Hedlund, Thomas P. Weber, Paul R. Dragsten, Gregory J. Hanson, Philip E. Hallaway
  • Modified polysaccharides exhibiting altered biological recognition
    Publication number: 20030153531
    Abstract: The invention relates to polysaccharides, polysaccharide conjugates and complexes with altered biological properties, and methods to produce these polysaccharides, polysaccharide conjugates and complexes.
    Type: Application
    Filed: November 12, 2002
    Publication date: August 14, 2003
    Inventors: Bo E. Hedlund, Thomas P. Weber, Paul R. Dragsten, Gregory J. Hanson, Philip E. Hallaway
  • Modified polysaccharides exhibiting altered biological recognition
    Patent number: 6479468
    Abstract: The invention relates to polysaccharides, polysaccharide conjugates with altered biological properties, and methods to produce these polysaccharides and conjugates.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: November 12, 2002
    Assignee: Biomedical Frontiers, Inc.
    Inventors: Bo E. Hedlund, Thomas P. Weber, Paul R. Dragsten, Gregory J. Hanson, Philip E. Hallaway
  • Method of reducing a schiff base
    Patent number: 5847110
    Abstract: The invention relates to methods of reducing Schiff bases and making chelator conjugates by treating with borane-pyridine complex.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: December 8, 1998
    Assignee: Biomedical Frontiers, Inc.
    Inventors: Paul R. Dragsten, Gregory J. Hansen