Patents by Inventor Daniel J. Tavares

Daniel J. Tavares 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).

  • Patent number: 11897961
    Abstract: The present invention generally relates to antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to CD123 antigen (the ? chain of the interleukine 3 receptor, or IL-3R?). The present invention also relates to methods of using such CD123-binding molecules for diagnosing and treating diseases, such as B-cell malignancies.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: February 13, 2024
    Assignee: IMMUNOGEN, INC.
    Inventors: Yelena Kovtun, Daniel J. Tavares, Lingyun Rui, Thomas Chittenden
  • Patent number: 11732038
    Abstract: The invention relates to novel cell-binding agent-cytotoxic agent conjugates, wherein the cell-binding agent (CBA) is covalently linked to the cytotoxic agent through an aldehyde group obtained from oxidation of a 2-hydroxyethylamine moiety on the CBA. The invention also provides methods of preparing the conjugates of the present invention. The invention further provides composition and methods useful for inhibiting abnormal cell growth or treating a proliferative disorder in a mammal using the conjugates of the invention.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: August 22, 2023
    Assignee: IMMUNOGEN, INC.
    Inventors: Nathan Elliott Fishkin, Daniel J. Tavares, Lingyun Rui, Luke B. Harris, Manami Shizuka, Michael Louis Miller, Ravi V. J. Chari
  • Publication number: 20220372152
    Abstract: The present invention generally relates to antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to CD123 antigen (the ? chain of the interleukine 3 receptor, or IL-3R?). The present invention also relates to methods of using such CD123-binding molecules for diagnosing and treating diseases, such as B-cell malignancies.
    Type: Application
    Filed: April 1, 2022
    Publication date: November 24, 2022
    Inventors: Yelena Kovtun, Daniel J. Tavares, Lingyun Rui, Thomas Chittenden
  • Patent number: 11332535
    Abstract: The present invention generally relates to antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to CD123 antigen (the ? chain of the interleukine 3 receptor, or IL-3R?). The present invention also relates to methods of using such CD123-binding molecules for diagnosing and treating diseases, such as B-cell malignancies.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: May 17, 2022
    Assignee: IMMUNOGEN, INC.
    Inventors: Yelena Kovtun, Daniel J. Tavares, Lingyun Rui, Thomas Chittenden
  • Publication number: 20210299271
    Abstract: The invention relates to novel cell-binding agent-cytotoxic agent conjugates, wherein the cell-binding agent (CBA) is covalently linked to the cytotoxic agent through an aldehyde group obtained from oxidation of a 2-hydroxyethylamine moiety on the CBA. The invention also provides methods of preparing the conjugates of the present invention. The invention further provides composition and methods useful for inhibiting abnormal cell growth or treating a proliferative disorder in a mammal using the conjugates of the invention.
    Type: Application
    Filed: February 12, 2021
    Publication date: September 30, 2021
    Inventors: Nathan Elliott Fishkin, Daniel J. Tavares, Lingyun Rui, Luke B. Harris, Manami Shizuka, Michael Louis Miller, Ravi V.J. Chari
  • Publication number: 20210147560
    Abstract: The present invention generally relates to antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to CD123 antigen (the ? chain of the interleukine 3 receptor, or IL-3R?). The present invention also relates to methods of using such CD123-binding molecules for diagnosing and treating diseases, such as B-cell malignancies.
    Type: Application
    Filed: October 22, 2020
    Publication date: May 20, 2021
    Inventors: Yelena Kovtun, Daniel J. Tavares, Lingyun Rui, Thomas Chittenden
  • Patent number: 10919969
    Abstract: The present invention generally relates to antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to CD123 antigen (the ? chain of the interleukine 3 receptor, or IL-3R?). The present invention also relates to methods of using such CD123-binding molecules for diagnosing and treating diseases, such as B-cell malignancies.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: February 16, 2021
    Assignee: IMMUNOGEN, INC.
    Inventors: Yelena Kovtun, Daniel J. Tavares, Lingyun Rui, Thomas Chittenden
  • Patent number: 10875925
    Abstract: The present invention generally relates to antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to CD123 antigen (the ? chain of the interleukine 3 receptor, or IL-3R?). The present invention also relates to methods of using such CD123-binding molecules for diagnosing and treating diseases, such as B-cell malignancies.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: December 29, 2020
    Assignee: IMMUNOGEN, INC.
    Inventors: Yelena Kovtun, Daniel J. Tavares, Lingyun Rui, Thomas Chittenden
  • Publication number: 20200239580
    Abstract: The present invention generally relates to antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to CD123 antigen (the ? chain of the interleukine 3 receptor, or IL-3R?). The present invention also relates to methods of using such CD123-binding molecules for diagnosing and treating diseases, such as B-cell malignancies.
    Type: Application
    Filed: January 31, 2020
    Publication date: July 30, 2020
    Inventors: YELENA KOVTUN, DANIEL J. TAVARES, LINGYUN RUI, THOMAS CHITTENDEN
  • Patent number: 10442865
    Abstract: The present invention generally relates to antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to CD123 antigen (the a chain of the interleukine 3 receptor, or IL-3R?). The present invention also relates to methods of using such CD123-binding molecules for diagnosing and treating diseases, such as B-cell malignancies.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: October 15, 2019
    Assignee: IMMUNOGEN, INC.
    Inventors: Yelena Kovtun, Daniel J. Tavares, Lingyun Rui, Thomas Chittenden
  • Publication number: 20180355047
    Abstract: The present invention generally relates to antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to CD123 antigen (the a chain of the interleukine 3 receptor, or IL-3R?). The present invention also relates to methods of using such CD123-binding molecules for diagnosing and treating diseases, such as B-cell malignancies.
    Type: Application
    Filed: April 19, 2018
    Publication date: December 13, 2018
    Inventors: Yelena Kovtun, Daniel J. Tavares, Lingyun Rui, Thomas Chittenden
  • Publication number: 20180230218
    Abstract: MET is a receptor tyrosine kinase found on the surface of tumor cells. The present invention includes anti-MET antibodies, forms and fragments, having superior physical and functional properties; immunoconjugates, compositions, diagnostic reagents, methods for inhibiting growth, therapeutic methods, improved antibodies and cell lines; and polynucleotides, vectors and genetic constructs encoding same.
    Type: Application
    Filed: January 3, 2018
    Publication date: August 16, 2018
    Inventors: Thomas Chittenden, Jutta Deckert, Stuart William Hicks, Katharine C. Lai, Peter U. Park, Lingyun Rui, Daniel J. Tavares, Neeraj Kohli
  • Publication number: 20180127511
    Abstract: Cytotoxic conjugates comprising a cell binding agent and a cytotoxic agent, therapeutic compositions comprising the conjugate, methods for using the conjugates in the inhibition of cell growth and the treatment of disease, and a kit comprising the cytotoxic conjugate are disclosed are all embodiments of the invention. In particular, the cell binding agent is a monoclonal antibody, and epitope-binding fragments thereof, that recognizes and binds the CA6 glycotope. The present invention is also directed to humanized or resurfaced versions of DS6, an anti-CA6 murine monoclonal antibody, and epitope-binding fragments thereof.
    Type: Application
    Filed: October 16, 1918
    Publication date: May 10, 2018
    Inventors: Gillian PAYNE, Philip CHUN, Daniel J. TAVARES
  • Publication number: 20180079819
    Abstract: The present invention generally relates to antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to CD123 antigen (the ? chain of the interleukine 3 receptor, or IL-3R?). The present invention also relates to methods of using such CD123-binding molecules for diagnosing and treating diseases, such as B-cell malignancies.
    Type: Application
    Filed: August 3, 2017
    Publication date: March 22, 2018
    Inventors: Yelena Kovtun, Daniel J. Tavares, Lingyun Rui, Thomas Chittenden
  • Patent number: 9822183
    Abstract: Cytotoxic conjugates comprising a cell binding agent and a cytotoxic agent, therapeutic compositions comprising the conjugate, methods for using the conjugates in the inhibition of cell growth and the treatment of disease, and a kit comprising the cytotoxic conjugate are disclosed are all embodiments of the invention. In particular, the cell binding agent is a monoclonal antibody, and epitope-binding fragments thereof, that recognizes and binds the CA6 glycotope. The present invention is also directed to humanized or resurfaced versions of DS6, an anti-CA6 murine monoclonal antibody, and epitope-binding fragments thereof.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: November 21, 2017
    Assignee: SANOFI
    Inventors: Gillian Payne, Philip Chun, Daniel J. Tavares
  • Publication number: 20160355605
    Abstract: Cytotoxic conjugates comprising a cell binding agent and a cytotoxic agent, therapeutic compositions comprising the conjugate, methods for using the conjugates in the inhibition of cell growth and the treatment of disease, and a kit comprising the cytotoxic conjugate are disclosed are all embodiments of the invention. In particular, the cell binding agent is a monoclonal antibody, and epitope-binding fragments thereof, that recognizes and binds the CA6 glycotope. The present invention is also directed to humanized or resurfaced versions of DS6, an anti-CA6 murine monoclonal antibody, and epitope-binding fragments thereof.
    Type: Application
    Filed: May 18, 2016
    Publication date: December 8, 2016
    Inventors: Gillian PAYNE, Philip Chun, Daniel J. Tavares
  • Patent number: 9370584
    Abstract: Cytotoxic conjugates comprising a cell binding agent and a cytotoxic agent, therapeutic compositions comprising the conjugate, methods for using the conjugates in the inhibition of cell growth and the treatment of disease, and a kit comprising the cytotoxic conjugate are disclosed are all embodiments of the invention. In particular, the cell binding agent is a monoclonal antibody, and epitope-binding fragments thereof, that recognizes and binds the CA6 glycotope. The present invention is also directed to humanized or resurfaced versions of DS6, an anti-CA6 murine monoclonal antibody, and epitope-binding fragments thereof.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: June 21, 2016
    Assignee: IMMUNOGEN INC.
    Inventors: Gillian Payne, Daniel J. Tavares
  • Publication number: 20160115238
    Abstract: CD20 is a transmembrane protein of the tetra-spanin family expressed on the surface of B-cells from peripheral blood as well as lymphoid tissues. CD20 expression persists from the early pre-B cell stage until the plasma cell differentiation stage. In addition to expression in normal B-cells, CD20 is expressed in B-cell derived malignancies such as non-Hodgkin's lymphoma (NHL) and B-cell chronic lymphocytic leukemia (CLL). The present invention includes anti-CD20 antibodies and antigen-binding fragments thereof comprising a light chain variable region and a heavy chain variable region, wherein the CDR-L1, CDR-L2, and CDR-L3 of said light chain variable region comprise the amino acid sequences of SEQ ID NOs: 23-25, respectively, and wherein the CDR-H1, CDR-H2, and CDR-H3 of said heavy chain variable region comprise the amino acid sequences of SEQ ID NOs: 26-28, respectively.
    Type: Application
    Filed: September 16, 2015
    Publication date: April 28, 2016
    Inventors: Jutta DECKERT, Daniel J. Tavares, Peter U. Park
  • Patent number: 9175086
    Abstract: CD20 is a transmembrane protein of the tetra-spanin family expressed on the surface of B-cells from peripheral blood as well as lymphoid tissues. CD20 expression persists from the early pre-B cell stage until the plasma cell differentiation stage. In addition to expression in normal B-cells, CD20 is expressed in B-cell derived malignancies such as non-Hodgkin's lymphoma (NHL) and B-cell chronic lymphocytic leukemia (CLL). The present invention includes anti-CD20 antibodies and antigen-binding fragments thereof comprising a light chain variable region and a heavy chain variable region, wherein the CDR-L1, CDR-L2, and CDR-L3 of said light chain variable region comprise the amino acid sequences of SEQ ID NOs: 23-25, respectively, and wherein the CDR-H1, CDR-H2, and CDR-H3 of said heavy chain variable region comprise the amino acid sequences of SEQ ID NOs: 26-28, respectively.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: November 3, 2015
    Assignee: ImmunoGen, Inc.
    Inventors: Jutta Deckert, Daniel J. Tavares, Peter U. Park
  • Patent number: 8987424
    Abstract: Cytotoxic conjugates comprising a cell binding agent and a cytotoxic agent, therapeutic compositions comprising the conjugate, methods for using the conjugates in the inhibition of cell growth and the treatment of disease, and a kit comprising the cytotoxic conjugate are disclosed are all embodiments of the invention. In particular, the cell binding agent is a monoclonal antibody, and epitope-binding fragments thereof, that recognizes and binds the CA6 glycotope. The present invention is also directed to humanized or resurfaced versions of DS6, an anti-CA6 murine monoclonal antibody, and epitope-binding fragments thereof.
    Type: Grant
    Filed: April 13, 2008
    Date of Patent: March 24, 2015
    Assignee: ImmunoGen, Inc.
    Inventors: Gillian Payne, Philip Chun, Daniel J. Tavares