Patents by Inventor Zachary Shriver

Zachary Shriver 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).

  • Publication number: 20060067928
    Abstract: The invention relates to heparinase III and mutants thereof. Modified forms of heparinase III having reduced enzymatic activity which are useful for a variety of purposes, including sequencing of heparin-like glycosaminoglycans (HLGAGs), removing active heparan sulfate from a solution, inhibition of angiogenesis , etc. have been discovered according to the invention. The invention in other aspects relates to methods of treating cancer and inhibiting tumor cell growth and/or metastasis using heparinase III, or products produced by enzymatic cleavage by heparinase III of HLGAGs.
    Type: Application
    Filed: July 22, 2005
    Publication date: March 30, 2006
    Applicant: Massachusetts Institute of Technology
    Inventors: Dongfang Liu, Kevin Pojasek, Zachary Shriver, Kristine Holley, Yosuf El-Shabrawi, Ganesh Venkataraman, Ram Sasisekharan
  • Publication number: 20060024664
    Abstract: The invention relates to methods and products for characterizing and using polysaccharides. Low molecular weight heparin products and methods of use are described. Methods for characterizing purity and activity of polysaccharide preparations including glycosaminoglycans such as heparin are also described.
    Type: Application
    Filed: July 15, 2005
    Publication date: February 2, 2006
    Applicant: Massachusetts Institute of Technology
    Inventors: Ram Sasisekharan, Ganesh Venkataraman, Zachary Shriver, Dongfang Liu, Mallikarjun Sundaram, Yiwei Qi
  • Publication number: 20050233402
    Abstract: The invention relates to heparinase III and mutants thereof. Modified forms of heparinase III having reduced enzymatic activity which are useful for a variety of purposes, including sequencing of heparin-like glycosaminoglycans (HLGAGs), removing active heparan sulfate from a solution, inhibition of angiogenesis, etc. have been discovered according to the invention. The invention in other aspects relates to methods of treating cancer and inhibiting tumor cell growth and/or metastasis using heparinase III, or products produced by enzymatic cleavage by heparinase III of HLGAGs.
    Type: Application
    Filed: October 14, 2004
    Publication date: October 20, 2005
    Applicant: Massachusetts Institute of Technology
    Inventors: Dongfang Liu, Kevin Pojasek, Zachary Shriver, Kristine Holley, Yosuf El-Shabrawi, Ganesh Venkataraman, Ram Sasisekharan
  • Publication number: 20050214276
    Abstract: The invention relates to ?4,5 glycuronidase, related compositions, and methods of use thereof.
    Type: Application
    Filed: May 5, 2003
    Publication date: September 29, 2005
    Inventors: James Myette, Zachary Shriver, Ganesh Venkataraman, Ram Sasisekharan, Maitland McLean
  • Patent number: 6947849
    Abstract: The invention relates to methods of identifying and characterizing properties of polymers to provide information about the polymer such as the charge of the polymer, the number and types or characteristics of units of the polymer and the sequence of the polymers. The invention also relates to methods of sequencing polymers such as nucleic acids, polypeptides and polysaccharides and methods for identifying a polysaccharide-protein interaction.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: September 20, 2005
    Assignee: Massachusetts Institute of Technology
    Inventors: Ganesh Venkataraman, Zachary Shriver, Rahul Raman, Ram Sasisekharan, Nishla Keiser
  • Patent number: 6869789
    Abstract: The invention relates to heparinase III and mutants thereof. Modified forms of heparinase III having reduced enzymatic activity which are useful for a variety of purposes, including sequencing of heparin-like glycosaminoglycans (HLGAGs), removing active heparan sulfate from a solution, inhibition of angiogenesis, etc. have been discovered according to the invention. The invention in other aspects relates to methods of treating cancer and inhibiting tumor cell growth and/or metastasis using heparinase III, or products produced by enzymatic cleavage by heparinase III of HLGAGs.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: March 22, 2005
    Assignee: Massachusetts Institute of Technology
    Inventors: Dongfang Liu, Kevin Pojasek, Zachary Shriver, Kristine Holley, Yosuf El-Shabrawi, Ganesh Venkataraman, Ram Sasisekharan
  • Publication number: 20050037376
    Abstract: The invention relates to 2-O sulfatase and uses thereof. In particular, the invention relates to recombinantly produced 2-O sulfatase, functional variants and nucleic acid molecules that encode these molecules. The invention also provides methods of using 2-O sulfatase for a variety of purposes, including degrading and analyzing glycosaminoglycans (GAGs) present in a sample. For instance, 2-O sulfatase may be used for determining the purity, identity, composition and sequence of glycosaminoglycans present in a sample. The invention also relates to methods of inhibiting angiogenesis and cellular proliferation as well as methods for treating cancer, neurodegenerative disease, atherosclerosis and microbial infection using 2-O sulfatase and/or GAG fragments produced by degradation with 2-O sulfatase.
    Type: Application
    Filed: January 7, 2004
    Publication date: February 17, 2005
    Applicant: Massachusetts Institute of Technology
    Inventors: Ram Sasisekharan, James Myette, Zachary Shriver, Ganesh Venkataraman
  • Publication number: 20040214228
    Abstract: Methods to evaluate and rapidly produce and identify polysaccharides, and other sugar structures, having enhanced activities, have been developed. The methods include producing a molecule, e.g., a therapeutic molecule, which includes a first, non-saccharide moiety (e.g., a protein, polypeptide, peptide, amino acid or lipid) and a second, saccharide, moiety. The method includes: determining the chemical composition and structure of all or a portion of the second, saccharide moiety, and evaluating or screening the molecule, e.g., for a biological activity or other chemical or physical property. In some embodiments, the step of determining the chemical structure and composition of the second moiety includes a comparison of one or more properties of the second moiety with a database, e.g., a database which correlates such one or more properties with structure or function of a polysaccharide.
    Type: Application
    Filed: March 14, 2003
    Publication date: October 28, 2004
    Inventors: Ganesh Venkataraman, Zachary Shriver, Ram Sasisekharan
  • Publication number: 20040204869
    Abstract: The invention relates to methods of identifying and characterizing properties of polymers to provide information about the polymer such as the charge of the polymer, the number and types or characteristics of units of the polymer and the sequence of the polymers. The invention also relates to methods of sequencing polymers such as nucleic acids, polypeptides and polysaccharides and methods for identifying a polysaccharide-protein interaction.
    Type: Application
    Filed: January 16, 2004
    Publication date: October 14, 2004
    Applicant: Massachusetts Institute of Technology
    Inventors: Ganesh Venkataraman, Zachary Shriver, Rahul Raman, Ram Sasisekharan, Nishla Keiser
  • Publication number: 20040197933
    Abstract: The invention relates to methods of identifying and characterizing properties of polymers to provide information about the polymer such as the charge of the polymer, the number and types or characteristics of units of the polymer and the sequence of the polymers. The invention also relates to methods of sequencing polymers such as nucleic acids, polypeptides and polysaccharides and methods for identifying a polysaccharide-protein interaction.
    Type: Application
    Filed: January 16, 2004
    Publication date: October 7, 2004
    Applicant: Massachusetts Institute of Technology
    Inventors: Ganesh Venkataraman, Zachary Shriver, Rahul Raman, Ram Sasisekharan, Nishla Keiser
  • Publication number: 20040147033
    Abstract: The present invention provides ultra-sensitive methods for detecting changes in glycosylation that are correlated with pre-cancerous or early cancerous states. Because the chance of complete recovery is increased with earlier detection of cancer, the present invention provides therapeutically useful methods of early detection, diagnosis, staging and prognostication.
    Type: Application
    Filed: December 19, 2003
    Publication date: July 29, 2004
    Inventors: Zachary Shriver, Ganesh Venkataraman, Ram Sasisekharan, Mallikarjun Sundaram
  • Publication number: 20040091471
    Abstract: The invention relates to &Dgr;4,5 glycuronidase, related compositions, and methods of use thereof.
    Type: Application
    Filed: May 5, 2003
    Publication date: May 13, 2004
    Inventors: James R. Myette, Zachary Shriver, Ganesh Venkataraman, Ram Sasisekharan, Maitland W. McLean
  • Publication number: 20040087543
    Abstract: The invention features methods and products associated with non-invasive delivery of polysaccharide preparations.
    Type: Application
    Filed: April 25, 2003
    Publication date: May 6, 2004
    Inventors: Zachary Shriver, Ganesh Venkataraman, Mallikarjun Sundaram, Ram Sasisekharan, Thomas Richardson, Yiwei Qi
  • Publication number: 20030219830
    Abstract: Methods to evaluate and rapidly produce and identify polysaccharides, and other sugar structures, having enhanced activities, have been developed. The methods include producing a molecule, e.g., a therapeutic molecule, which includes a first, non-saccharide moiety (e.g., a protein, polypeptide, peptide, amino acid or lipid) and a second, saccharide, moiety. The method includes: determining the chemical composition and structure of all or a portion of the second, saccharide moiety, and evaluating or screening the molecule, e.g., for a biological activity or other chemical or physical property. In some embodiments, the step of determining the chemical structure and composition of the second moiety includes a comparison of one or more properties of the second moiety with a database, e.g., a database which correlates such one or more properties with structure or function of a polysaccharide.
    Type: Application
    Filed: March 14, 2003
    Publication date: November 27, 2003
    Inventors: Ganesh Venkataraman, Zachary Shriver, Ram Sasisekharan
  • Publication number: 20030203385
    Abstract: The invention relates to methods and products associated with analyzing and monitoring heterogeneous populations of sulfated polysaccharides. In particular therapeutic heparin products including low molecular weight heparin products and methods of analyzing and monitoring these products are described.
    Type: Application
    Filed: March 11, 2003
    Publication date: October 30, 2003
    Inventors: Ganesh Venkataraman, Zachary Shriver, Malikarjun Sundaram, Yi-Wei QI, Ram Sasisekharan
  • Publication number: 20030191587
    Abstract: The invention relates to methods of identifying and characterizing properties of polymers to provide information about the polymer such as the charge of the polymer, the number and types or characteristics of units of the polymer and the sequence of the polymers. The invention also relates to methods of sequencing polymers such as nucleic acids, polypeptides and polysaccharides and methods for identifying a polysaccharide-protein interaction.
    Type: Application
    Filed: January 31, 2003
    Publication date: October 9, 2003
    Applicant: Massachusetts Institute of Technology
    Inventors: Ganesh Venkataraman, Zachary Shriver, Rahul Raman, Ram Sasisekharan, Nishla Keiser
  • Patent number: 6597996
    Abstract: The invention relates to methods of identifying and characterizing properties of polymers to provide information about the polymer such as the charge of the polymer, the number and types or characteristics of units of the polymer and the sequence of the polymers. The invention also relates to methods of sequencing polymers such as nucleic acids, polypeptides and polysaccharides and methods for identifying a polysaccharide-protein interaction.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: July 22, 2003
    Assignee: Massachusetts Institute of Technology
    Inventors: Ganesh Venkataraman, Zachary Shriver, Rahul Raman, Ram Sasisekharan, Nishla Keiser
  • Publication number: 20030099628
    Abstract: The invention relates to heparinase III and mutants thereof. Modified forms of heparinase II having reduced enzymatic activity which are useful for a variety of purposes, including sequencing of heparin-like glycosaminoglycans (HLGAGs), removing active heparan sulfate from a solution, inhibition of angiogenesis, etc. have been discovered according to the invention. The invention in other aspects relates to methods of treating cancer and inhibiting tumor cell growth and/or metastasis using heparinase III, or products produced by enzymatic cleavage by heparinase III of HLGAGs.
    Type: Application
    Filed: November 8, 2002
    Publication date: May 29, 2003
    Inventors: Dongfang Liu, Kevin Pojasek, Zachary Shriver, Kristine Holley, Yosuf El-Shabrawi, Ganesh Venkataraman, Ram Sasisekharan
  • Publication number: 20030096281
    Abstract: Methods to rapidly produce and identify polysaccharides, and other sugar structures, having enhanced activities, have been developed. The methods include producing a molecule, e.g., a therapeutic molecule, which includes a first, non-saccharide moiety (e.g., a protein, polypeptide, peptide, amino acid or lipid) and a second, polysaccharide, moiety. The method includes: determining the chemical composition and structure of all or a portion of the second moiety, modifying the structure of the second moiety to provide a modified second moiety, and evaluating or screening the molecule having the modified second moiety, e.g., for a biological activity or other chemical or physical property. In some embodiments, the step of determining the chemical structure and composition of the second moiety includes a comparison of one or more properties of the second moiety with a database, e.g., a database which correlates such one or more properties with structure or function of a polysaccharide.
    Type: Application
    Filed: September 16, 2002
    Publication date: May 22, 2003
    Inventors: Ganesh Venkataraman, Ram Sasisekharan, Zachary Shriver
  • Publication number: 20030008820
    Abstract: The invention is methods and products related to FGF dimerization. In particular compositions of FGF dimers are provided.
    Type: Application
    Filed: March 27, 2002
    Publication date: January 9, 2003
    Applicant: Massachusetts Institute of Technology
    Inventors: Chi-Pong Kwan, Ganesh Venkataraman, Zachary Shriver, Rahul Raman, Ram Sasisekharan