Patents by Inventor Geraldine F. Drevon

Geraldine F. Drevon 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).

  • Irreversible immobilization of enzymes into polyurethane coatings
    Patent number: 7521504
    Abstract: A method of irreversibly immobilizing an enzyme in a polyurethane and an enzyme-containing polyurethane having a degree of immobilization of the enzyme of approximately 100%. The synthesis of waterborne polyurethanes in the presence of enzyme has enabled the irreversible attachment of the enzyme to the polymeric matrix. The distribution of immobilized enzyme as well as activity retention are homogeneous within the polyurethane. Decreasing ECC hydrophobicity, via the use of a less hydrophobic polyisocyanate prepolymer during polymerization, significantly enhanced the intrinsic activity of the ECC.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: April 21, 2009
    Assignee: University of Pittsburgh
    Inventors: Alan J. Russell, Geraldine F. Drevon, Douglas A. Wicks, Karsten Danielmeier
  • Irreversible immobilization of enzymes into polyurethane coatings
    Patent number: 7335400
    Abstract: A method of irreversibly immobilizing an enzyme in a polyurethane and an enzyme-containing polyurethane having a degree of immobilization of the enzyme of approximately 100%. The synthesis of waterborne polyurethanes in the presence of enzyme has enabled the irreversible attachment of the enzyme to the polymeric matrix. The distribution of immobilized enzyme as well as activity retention are homogeneous within the polyurethane. Decreasing ECC hydrophobicity, via the use of a less hydrophobic polyisocyanate prepolymer during polymerization, significantly enhanced the intrinsic activity of the ECC.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: February 26, 2008
    Assignees: University of Pittsburgh, Bayer Material Science, LLC
    Inventors: Alan J. Russell, Geraldine F. Drevon, Douglas A. Wicks, Karsten Danielmeier
  • Irreversible immobilization of enzymes into polyurethane coatings
    Patent number: 6905733
    Abstract: This invention provides a method of irreversibly immobilizing an enzyme into polyurethane coatings. This invention also provides for an enzyme-containing coating having a degree of immobilization of the enzyme of approximately 100%. The synthesis of waterborne polyurethane coatings in the presence of enzyme has enabled the irreversible attachment of the enzyme to the polymeric matrix. The distribution of immobilized enzyme as well as activity retention are homogeneous within the coating. Decreasing ECC hydrophobicity, via the use of a less hydrophobic polyisocyanate prepolymer during polymerization, significantly enhanced the intrinsic activity of the ECC.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: June 14, 2005
    Assignees: University of Pittsburgh, Bayer Polymers LLC
    Inventors: Alan J. Russell, Geraldine F. Drevon, Douglas Wicks, Karsten Danielmeier
  • Irreversible immobilization of enzymes into polyurethane coatings
    Publication number: 20030129314
    Abstract: This invention provides a method of irreversibly immobilizing an enzyme into polyurethane coatings. This invention also provides for an enzyme-containing coating having a degree of immobilization of the enzyme of approximately 100%. The synthesis of waterborne polyurethane coatings in the presence of enzyme has enabled the irreversible attachment of the enzyme to the polymeric matrix. The distribution of immobilized enzyme as well as activity retention are homogeneous within the coating. Decreasing ECC hydrophobicity, via the use of a less hydrophobic polyisocyanate prepolymer during polymerization, significantly enhanced the intrinsic activity of the ECC.
    Type: Application
    Filed: July 24, 2002
    Publication date: July 10, 2003
    Inventors: Alan J. Russell, Geraldine F. Drevon, Douglas Wicks, Karsten Danielmeier