Patents by Inventor William M. Canfield

William M. Canfield 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: 20080176285
    Abstract: The present invention provides nucleotide and amino sequences of the lysosomal targeting pathway enzyme GlcNAc-phosphotransferase, methods of producing and methods of purifying this enzyme.
    Type: Application
    Filed: February 27, 2008
    Publication date: July 24, 2008
    Applicant: Genzyme Glycobiology Research Institute, Inc.
    Inventor: William M. CANFIELD
  • Patent number: 7371366
    Abstract: The present invention provides nucleotide and amino sequences of the lysosomal targeting pathway enzyme GlcNAc-phosphotransferase, methods of producing and methods of purifying this enzyme.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: May 13, 2008
    Assignee: Genzyme Corporation
    Inventor: William M. Canfield
  • Patent number: 7067127
    Abstract: The present invention provides nucleotide and amino sequences of the lysosomal targeting pathway enzyme GlcNAc-phosphotransferase, methods of producing and methods of purifying this enzyme.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: June 27, 2006
    Assignee: Genzyme Glycobiology Research Institute Inc.
    Inventor: William M. Canfield
  • Patent number: 6861242
    Abstract: The present invention provides highly phosphorylated lysosomal hydrolases, methods of modifying lysosomal hydrolases with the lysosomal targeting pathway enzymes GlcNAc-phosphotransferase and/or phosphodiester ?-GlcNAcase.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: March 1, 2005
    Assignee: Genzyme Glycobiology Research Institute, Inc.
    Inventor: William M. Canfield
  • Patent number: 6828135
    Abstract: The present invention provides nucleotide and amino sequences of the lysosomal targeting pathway enzyme phosphodiester &agr;-GlcNAcase, methods of producing and methods of purifying this enzyme.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: December 7, 2004
    Assignee: Genzyme Glycobiology Research Institute, Inc.
    Inventor: William M. Canfield
  • Patent number: 6770468
    Abstract: The present invention provides nucleotide and amino sequences of the lysosomal targeting pathway enzyme phosphodiester &agr;-GlcNAcase, methods of producing and methods of purifying this enzyme.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: August 3, 2004
    Assignee: Genzyme Glycobiology Research Institute, Inc.
    Inventor: William M. Canfield
  • Patent number: 6670165
    Abstract: The present invention provides highly phosphorylated lysosomal hydrolases, methods of modifying lysosomal hydrolases with the lysosomal targeting pathway enzymes GlcNAc-phosphotransferase and/or phosphodiester &agr;-GlcNAcase.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: December 30, 2003
    Assignee: Genzyme Glycobiology Research Institute, Inc.
    Inventor: William M. Canfield
  • Publication number: 20030235884
    Abstract: Core 1 &bgr;3-galactosyl transferases and nucleic acids encoding the core 1 &bgr;3-galactosyl transferases or proteins having core 1 &bgr;3-galactosyl transferase activity or proteins having core 1 &bgr;3 galactosyl transferase activity are described. The enzymes and the nucleic acids encoding said enzymes have been identified in human, rat, mouse D. melanogaster and C. elegans. The polypeptides exhibit a wide range of homologies. The polynucleotides can be used to transform or transfect host cells for producing substantially pure forms of the enzyme, or for use in an expression system for post-translational core 1 glycosylation of proteins or peptides produced within the expression system. The enzymes can be used to galactosylate, via a &bgr;3-linkage, an N-acetylgalactosamine linked to a serine, threonine or other O-linking amino acid on peptides or proteins requiring O-, N-, or S-linked glycosylation.
    Type: Application
    Filed: December 9, 2002
    Publication date: December 25, 2003
    Inventors: Richard D. Cummings, William M. Canfield, Ju Tongzhong
  • Patent number: 6642038
    Abstract: The present invention provides nucleotide and amino sequences of the lysosomal targeting pathway enzyme GlcNAc-phosphotransferase, methods of producing and methods of purifying this enzyme.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: November 4, 2003
    Assignee: Genzyme Glycobiology Research Institute, Inc.
    Inventor: William M. Canfield
  • Publication number: 20030148460
    Abstract: The present invention provides nucleotide and amino sequences of the lysosomal targeting pathway enzyme phosphodiester &agr;-GlcNAcase, methods of producing and methods of purifying this enzyme.
    Type: Application
    Filed: November 29, 2002
    Publication date: August 7, 2003
    Applicant: NOVAZYME PHARMACEUTICALS, INC.
    Inventor: William M. Canfield
  • Publication number: 20030124653
    Abstract: The present invention provides a method of producing glycoproteins having reduced complex carbohydrates in a mammalian cell, glycoproteins produced by the method and cells that produce the glycoproteins.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 3, 2003
    Applicant: NOVAZYME PHARMACEUTICALS, INC.
    Inventor: William M. Canfield
  • Publication number: 20030124652
    Abstract: The present invention provides a method for producing high mannose glycoproteins in complex carbohydrate deficient cells and the glycoproteins obtained therein.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 3, 2003
    Applicant: NOVAZYME PHARMACEUTICALS, INC.
    Inventor: William M. Canfield
  • Publication number: 20030059915
    Abstract: Core 1 &bgr;3-galactosyl transferases and nucleic acids encoding the core 1 &bgr;3-galactosyl transferases are described. The enzymes and the nucleic acids encoding said enzymes have been identified in human, rat, mouse D. melanogaster and C. elegans. The polypeptides exhibit a wide range of homologies. The polynucleotides can be used to transform or transfect host cells for producing substantially pure forms of the enzyme, or for use in an expression system for post-translational core 1 O-linked glycosylation of proteins or peptides produced within the expression system. The enzymes can be used to galactosylate, via a &bgr;3-linkage, an N-acetylgalactosamine linked to a serine, threonine or other 0-linking amino acid on peptides or proteins requiring O-linked glycosylation.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 27, 2003
    Inventors: William M. Canfield, Richard D. Cummings, Tongzhong Ju
  • Patent number: 6537785
    Abstract: The present invention provides methods of treating lysosomal storage disease with highly phosphorylated lysosomal hyrdrolases.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: March 25, 2003
    Assignee: Genzyme Glycobiology Research Institute, Inc.
    Inventor: William M. Canfield
  • Patent number: 6534300
    Abstract: The present invention provides highly phosphorylated lysosomal hydrolases, methods of modifying lysosomal hydrolases with the lysosomal targeting pathway enzymes GlcNAc-phosphotransferase and/or phosphodiester &agr;-GlcNAcase.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: March 18, 2003
    Assignee: Genzyme Glycobiology Research Institute, Inc.
    Inventor: William M. Canfield
  • Patent number: 6492152
    Abstract: Core 1 &bgr;3-galactosyl transferases and nucleic acids encoding the core 1 &bgr;3-galactosyl transferases are described. The enzymes and the nucleic acids encoding said enzymes have been identified in human, rat, mouse D. melanogaster and C. elegans. The polypeptides exhibit a wide range of homologies. The polynucleotides can be used to transform or transfect host cells for producing substantially pure forms of the enzyme, or for use in an expression system for post-translational core 1 O-linked glycosylation of proteins or peptides produced within the expression system. The enzymes can be used to galactosylate, via a &bgr;3-linkage, an N-acetylgalactosamine linked to a serine, threonine or other O-linking amino acid on peptides or proteins requiring O-linked glycosylation.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: December 10, 2002
    Assignee: The Board of Regents of the University of Oklahoma
    Inventors: William M. Canfield, Richard D. Cummings, Tongzhong Ju
  • Publication number: 20020150981
    Abstract: The present invention provides highly phosphorylated lysosomal hydrolases, methods of modifying lysosomal hydrolases with the lysosomal targeting pathway enzymes GlcNAc-phosphotransferase and/or phosphodiester &agr;-GlcNAcase.
    Type: Application
    Filed: November 9, 2001
    Publication date: October 17, 2002
    Applicant: NOVAZYME PHARMACEUTICALS, INC.
    Inventor: William M. Canfield
  • Publication number: 20020025550
    Abstract: The present invention provides highly phosphorylated lysosomal hydrolases, methods of modifying lysosomal hydrolases with the lysosomal targeting pathway enzymes GlcNAc-phosphotransferase and/or phosphodiester 60 -GlcNAcase.
    Type: Application
    Filed: July 2, 2001
    Publication date: February 28, 2002
    Applicant: NOVAZYME PHARMACEUTICALS, INC.
    Inventor: William M. Canfield
  • Patent number: 6049662
    Abstract: The present invention provides a system and method for verifying an integrated circuit model. The model includes a plurality of net variables. The system and method comprises generating a plurality of tests for simulating the integrated circuit, precalculating a reduced model based upon the generated tests, and evaluating the reduced model. In a preferred embodiment, the present invention includes restricting the test that are generated. Then net invariants for the integrated circuit are generated by translating the restricted plurality of tests to a smaller set of possible values for the net variables. Thereafter, a minimization algorithm or procedure is utilized to minimize the logic used in the particular system based upon the latch constraints. This system produces a reduced model which reduces the amount of the integrated circuit that must be simulated thereby increasing the simulation speed thereof.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: April 11, 2000
    Assignee: International Business Machines Corporation
    Inventors: Avijit Saha, James D. Christian, William M. Canfield, Greg N. Fife, Nadeem Malik