Patents by Inventor Bruce A. Keyt

Bruce A. Keyt 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: 20080267971
    Abstract: Antibodies directed to the antigen Ang-2 and uses of such antibodies are described. In particular, fully human monoclonal antibodies directed to the antigen Ang-2. Nucleotide sequences encoding, and amino acid sequences comprising, heavy and light chain immunoglobin molecules, particularly sequences corresponding to contiguous heavy and light chain sequences spanning the framework regions and/or complementary determining regions (CDR's), specifically from FR1 through FR4 or CDR1 through CDR3. Hybridomas or other cell lines expressing such immunoglobin molecules and monoclonal antibodies.
    Type: Application
    Filed: December 19, 2005
    Publication date: October 30, 2008
    Inventors: Larry L. Green, Qing Zhou, Bruce A. Keyt, Xia-dong Yang, Stephen Charles Emery, David C. Blakey
  • Patent number: 7427596
    Abstract: The present invention involves the preparation of vascular endothelial growth factor (VEGF) variants which provide materials that are selective in respect of binding characteristics to the kinase domain region and the FMS-like tyrosine-kinase region, respectively KDR and FLT-1. The respective KDR and FLT-1 receptors are bound by corresponding domains within the VEGF compound domains. The variants hereof define those two binding regions and modify them so as to introduce changes that interrupt the binding to the respective domain. In this fashion the final biological characteristics of the VEGF molecule are selectively modified.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: September 23, 2008
    Assignee: Genentech, Inc.
    Inventors: Bruce A. Keyt, Francis Hung Nguyen, Napoleone Ferrara
  • Patent number: 7005505
    Abstract: The present invention involves the preparation of vascular endothelial growth actor (VEGF) variants which provide materials that are selective in respect to binding characteristics to the kinase domain region and the FMS-like tyrosine-kinase region, respectively KDR and FLT-1. The respective KDR and FLT-1 receptors are bound by corresponding domains within the VEGF compound domains. The variants hereof define those two binding regions and modify them so as to introduce changes that interrupt the binding to the respective domain. In this fashion the final biological characteristics of the VEGF molecule are selectively modified.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: February 28, 2006
    Assignee: Genentech, Inc.
    Inventors: Bruce A. Keyt, Francis Hung Nguyen, Napoleone Ferrara
  • Publication number: 20040152636
    Abstract: The present invention involves the preparation of vascular endothelial growth factor (VEGF) antagonist molecules comprising variant VEGF polypeptides which are capable of binding to and occupying cell surface VEGF receptors without inducing a VEGF response, thereby antagonizing the biological activity of the native VEGF protein. Specifically, the variant VEGF polypeptides of the present invention comprise modifications of at least one cysteine residue in the native VEGF sequence, thereby inhibiting the ability of the variant polypeptide to dimerize through the formation of disulfide bonds. The present invention is further directed to methods for preparing such variant VEGF antagonists and to methods, compositions and assays utilizing such variants for producing pharmaceutically active materials having therapeutic and pharmacologic properties that differ from the native VEGF protein.
    Type: Application
    Filed: March 3, 2004
    Publication date: August 5, 2004
    Applicant: Genentech, Inc.
    Inventors: Bruce A. Keyt, Francis Hung Nguyen, Napoleone Ferrara
  • Publication number: 20040141969
    Abstract: Embodiments of the invention described herein relate to antibodies directed to platelet derived growth factor-DD (PDGF-DD) and uses of such antibodies. The antibodies of the invention find use as diagnostics and as treatments for diseases associated with the overproduction of PDGF-DD. In particular, in accordance with embodiments of the invention, the use of anti-PDGF-DD antibodies for the treatment of nephritis and related disorders, including diseases caused by mesangial proliferation is provided.
    Type: Application
    Filed: September 16, 2003
    Publication date: July 22, 2004
    Inventors: Juergen Floege, Gadi Gazit-Bornstein, Bruce A. Keyt, William J. LaRochelle, Henri Stephen Lichenstein
  • Patent number: 6750044
    Abstract: The present invention involves the preparation of vascular endothelial growth factor (VEGF) antagonist molecules comprising variant VEGF polypeptides which are capable of binding to and occupying cell surface VEGF receptors without inducing a VEGF response, thereby antagonizing the biological activity of the native VEGF protein. Specifically, the variant VEGF polypeptides of the present invention comprise modifications of at least one cysteine residue in the native VEGF sequence, thereby inhibiting the ability of the variant polypeptide to dimerize through the formation of disulfide bonds. The present invention is further directed to methods for preparing such variant VEGF antagonists and to methods, compositions and assays utilizing such variants for producing pharmaceutically active materials having therapeutic and pharmacologic properties that differ from the native VEGF protein.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: June 15, 2004
    Assignee: Genentech, Inc.
    Inventors: Bruce A. Keyt, Francis Hung Nguyen, Napoleone Ferrara
  • Publication number: 20040033561
    Abstract: Featured are DNA molecules, expression vectors, and host cells useful for creation of immunoglobulins, as well as novel immunoglobulin molecules termed monobodies. Additionally provided are methods of production of immunoglobulins, including monobodies, as well as methods of using the disclosed immunoglobulin and monobody constructs, expression vectors and host cells containing DNA encoding molecules for production of immunoglobulin and monobody proteins.
    Type: Application
    Filed: October 17, 2002
    Publication date: February 19, 2004
    Applicant: Millennium Pharmaceuticals, Inc.
    Inventors: Theresa L. O'Keefe, Judith Jacques Healey, Walter Newman, Paul D. Ponath, Bruce A. Keyt
  • Patent number: 6057428
    Abstract: The present invention involves the preparation of vascular endothelial growth factor (VEGF) variants which provide materials that are selective in respect to binding characteristics to the kinase domain region and the FMS-like tyrosine-kinase region, respectively KDR and FLT-1. The respective KDR and FLT-1 receptors are bound by corresponding domains within the VEGF compound domains. The variants hereof define those two binding regions and modify them so as to introduce changes that interrupt the binding to the respective domain. In this fashion the final biological characteristics of the VEGF molecule are selectively modified.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: May 2, 2000
    Assignee: Genentech, Inc.
    Inventors: Bruce A. Keyt, Francis Hung Nguyen, Napoleone Ferrara, Brian C. Cunningham, James A. Wells, Bing Li
  • Patent number: 6020473
    Abstract: The present invention involves the preparation of vascular endothelial growth factor (VEGF) variants which provide materials that are selective in respect to binding characteristics to the kinase domain region and the FMS-like tyrosine-kinase region, respectively KDR and FLT-1. The respective KDR and FLT-1 receptors are bound by corresponding domains within the VEGF compound domains. The variants hereof define those two binding regions and modify them so as to introduce changes that interrupt the binding to the respective domain. In this fashion the final biological characteristics of the VEGF molecule are selectively modified.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: February 1, 2000
    Assignee: Genentech, Inc.
    Inventors: Bruce A. Keyt, Francis Hung Nguyen, Napoleone Ferrara
  • Patent number: 5945432
    Abstract: Methods and products are provided for treating thromboembolic stroke. A method involves the administration of a thienopyridine derivative in combination with a thrombolytic agent to a patient suffering from thromboembolic stroke. Preferably the thienopyridine derivative is ticlopidine and the thrombolytic agent is tPA. The method also involves the administration of a thrombolytic agent to a subject who already has circulating plasma levels of a thienopyridine derivative. The product is a pharmaceutical preparation of a thienopyridine derivative and a thrombolytic agent and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: August 31, 1999
    Assignees: The University of Vermont and State Agricultural College, Grenentech, Inc.
    Inventors: Martin M. Bednar, Bruce A. Keyt, Cordell E. Gross
  • Patent number: 5612029
    Abstract: The invention concerns tissue plasminogen activator (t-PA) variants which are glycosylated at any of positions 103-105, and are devoid of functional carbohydrate structure at position 117 of wild-type human t-PA amino acid sequence. The variants have extended circulatory half-life and substantially retained fibrin binding, or improved in vivo fibrinolytic potency, as compared to wild-type human t-PA.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: March 18, 1997
    Assignee: Genentech, Inc.
    Inventors: William F. Bennett, Bruce A. Keyt, Nicholas F. Paoni
  • Patent number: 5520911
    Abstract: A fibrinolytically active amino acid sequence variant of a plasminogen activator is prepared that has one or more glycosylation sites in regions that are not glycosylated in the native molecule. DNA sequences can be prepared that encode the variants, as well as expression vectors incorporating the DNA sequences, and host cells transformed with the expression vectors. The variants may be used in a pharmaceutical preparation to treat a vascular disease or condition in patients.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: May 28, 1996
    Assignee: Genentech, Inc.
    Inventors: Stephen Anderson, Kevin M. Brady, Bruce A. Keyt, Leonard G. Presta
  • Patent number: 5385732
    Abstract: A fibrinolytically active amino acid sequence variant of a plasminogen activator is prepared that has one or more glycosylation sites in regions that are not glycosylated in the native molecule. DNA sequences can be prepared that encode the variants, as well as expression vectors incorporating the DNA sequences, and host cells transformed with the expression vectors. The variants may be used in a pharmaceutical preparation to treat a vascular disease or condition in patients.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: January 31, 1995
    Assignee: Genentech, Inc.
    Inventors: Stephen Anderson, Kevin M. Brady, Bruce A. Keyt, Leonard G. Presta
  • Patent number: 5346824
    Abstract: A fibrinolytically active amino acid sequence variant of a plasminogen activator is prepared that has one or more glycosylation sites in regions that are not glycosylated in the native molecule. DNA sequences can be prepared that encode the variants, as well as expression vectors incorporating the DNA sequences, and host cells transformed with the expression vectors. The variants may be used in a pharmaceutical preparation to treat a vascular disease or condition in patients.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: September 13, 1994
    Assignee: Genentech, Inc.
    Inventors: Stephen Anderson, Kevin M. Brady, Bruce A. Keyt, Leonard G. Presta
  • Patent number: 5338546
    Abstract: Biologically active tissue plasminogen activator (t-PA) variants with decreased clearance as compared to wild-type t-PA are prepared, including variants that have one or more amino acid alterations in at least the kringle-1 and/or kringle-2 domain(s) of the molecule. DNA sequences can be prepared that encode the variants, as well as expression vectors incorporating the DNA sequences and host cells transformed with the expression vectors. The variants may be used in pharmaceutical preparations to treat a vascular disease or condition, or to prevent fibrin deposition or adhesion formation or reformation in mammals.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: August 16, 1994
    Assignee: Genentech, Inc.
    Inventors: William F. Bennett, Bruce A. Keyt, Mark J. Zoller
  • Patent number: 5270198
    Abstract: A fibrinolytically active amino acid sequence variant of a plasminogen activator is prepared that has one or more glycosylation sites in regions that are not glycosylated in the native molecule. DNA sequences can be prepared that encode the variants, as well as expression vectors incorporating the DNA sequences, and host cells transformed with the expression vectors. The variants may be used in a pharmaceutical preparation to treat a vascular disease or condition in patients.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: December 14, 1993
    Assignee: Genentech, Inc.
    Inventors: Stephen Anderson, Kevin M. Brady, Bruce A. Keyt, Leonard G. Presta
  • Patent number: 5246850
    Abstract: Biologically active tissue plasminogen activator (t-PA) variants with decreased clearance as compared to wild-type t-PA are prepared, including variants that have one or more amino acid alterations in at least the kringle-1 and/or kringle-2 domain(s) of the molecule. DNA sequences can be prepared that encode the variants, as well as expression vectors incorporating the DNA sequences and host cells transformed with the expression vectors. The variants may be used in pharmaceutical preparations to treat a vascular disease or condition, or to prevent fibrin deposition or adhesion formation or reformation in mammals.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: September 21, 1993
    Assignee: Genentech, Inc.
    Inventors: William F. Bennett, Bruce A. Keyt, Mark J. Zoller