Patents by Inventor Xuejian Xu

Xuejian Xu 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).

  • Water insoluble derivatives of polyanionic polysaccharides
    Patent number: 6943154
    Abstract: A water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide, a nucleophile, and an activating agent, under conditions sufficient to form the composition. Also, a water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide, a modifying compound, a nucleophile and an activating agent under conditions sufficient to form the composition.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: September 13, 2005
    Assignee: Genzyme Corporation
    Inventors: Robert J. Miller, Xuejian Xu
  • Water insoluble derivatives of polyanionic polysaccharides
    Publication number: 20010039336
    Abstract: A water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide, a nucleophile, and an activating agent, under conditions sufficient to form the composition. Also, a water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide, a modifying compound, a nucleophile and an activating agent under conditions sufficient to form the composition.
    Type: Application
    Filed: January 9, 2001
    Publication date: November 8, 2001
    Inventors: Robert J. Miller, Xuejian Xu
  • Water insoluble derivatives of polyanionic polysaccharides
    Patent number: 6174999
    Abstract: A water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide, a nucleophile, and an activating agent, under conditions sufficient to form the composition. Also, a water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide, a modifying compound, a nucleophile and an activating agent under conditions sufficient to form the composition.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: January 16, 2001
    Assignee: Genzyme Corporation
    Inventors: Robert J. Miller, Xuejian Xu
  • Water insoluble derivatives of polyanionic polysaccharides
    Patent number: 5760200
    Abstract: A water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide, a nucleophile, and an activating agent, under conditions sufficient to form the composition. Also, a water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide, a modifying compound, a nucleophile and an activating agent under conditions sufficient to form the composition.
    Type: Grant
    Filed: January 25, 1995
    Date of Patent: June 2, 1998
    Assignee: Genzyme Corporation
    Inventors: Robert J. Miller, Xuejian Xu