Patents Represented by Attorney Petrina S. Hsi

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  • Chemically modified novel erythropoietin stimulating protein compositions and methods
    Patent number: 7262166
    Abstract: The present invention broadly relates to the field of protein modification, and, more specifically, the attachment of water soluble polymers to novel erythropoietin stimulating protein (NESP).
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: August 28, 2007
    Assignee: Amgen Inc.
    Inventors: Olaf Kinstler, Colin Gegg, Aimee Freeman, Thomas Boone