Patents by Inventor Sergio Finkielstein

Sergio Finkielstein 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).

  • Methods and compositions for poly-&bgr;-1-4-N-acetylglucosamine cell therapy system
    Patent number: 6649599
    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: November 18, 2003
    Assignee: Marine Polymer Technologies, Inc.
    Inventors: John N. Vournakis, Sergio Finkielstein, Ernest R. Pariser, Mike Helton