Patents Assigned to Marine Polymers Technologies
  • Pharmaceutical compositions comprising poly-&bgr;-1?4-N-acetylglucosamine
    Patent number: 6630459
    Abstract: The present invention relates to a purified, easily produced poly-&bgr;-1→4-N-acetylglucosamine (p-GlcNAc) polysaccharide species. The p-GlcNAc of the invention is a polymer of high molecular weight whose constituent monosaccharide sugars are attached in a &bgr;-1→4 conformation, and which is free of proteins, and substantially free of single amino acids, and other organic and inorganic contaminants. In addition, derivatives and reformulations of p-GlcNAc are described. The present invention further relates to methods for the purification of the p-GlcNAc of the invention from microalgae, preferably diatom, starting sources. Still further, the invention relates to methods for the derivatization and reformulation of the p-GlcNAc. Additionally, the present invention relates to the uses of pure p-GlcNAc, its derivatives, and/or its reformulations.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: October 7, 2003
    Assignee: Marine Polymers Technologies
    Inventors: John N. Vournakis, Sergio Finkielsztein, Ernest R. Pariser, Mike Helton
  • Methods and compositions for poly-&bgr;-1?4-N-acetylglucosamine cell therapy system
    Patent number: 6610668
    Abstract: The present invention relates to a purified, easily produced poly-&bgr;-1→4-N-acetylglucosamine (p-GlcNAc) polysaccharide species. The p-GlcNAc of the invention is a polymer of high molecular weight whose constituent monosaccharide sugars are attached in a &bgr;-1→4 conformation, and which is free of proteins, and substantially free of single amino acids, and other organic and inorganic contaminants. In addition, derivatives and reformulations of p-GlcNAc are described. The present invention further relates to methods for the purification of the p-GlcNAc of the invention from microalgae, preferably diatom, starting sources. Still further, the invention relates to methods for the derivatization and reformulation of the p-GlcNAc. Additionally, the present invention relates to the uses of pure p-GlcNAc, its derivatives, and/or its reformulations.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: August 26, 2003
    Assignee: Marine Polymers Technologies
    Inventors: John N. Vournakis, Sergio Finkielsztein, Ernest R. Pariser, Mike Helton