Patents by Inventor Zhengxing Qu

Zhengxing Qu 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: 20190083621
    Abstract: This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.
    Type: Application
    Filed: November 21, 2018
    Publication date: March 21, 2019
    Inventors: Serengulam V. Govindan, Zhengxing Qu, Hans J. Hansen, David M. Goldenberg
  • Patent number: 10179171
    Abstract: This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: January 15, 2019
    Assignee: Immunomedics, Inc.
    Inventors: Serengulam V. Govindan, Zhengxing Qu, Hans J. Hansen, David M. Goldenberg
  • Publication number: 20180250406
    Abstract: This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.
    Type: Application
    Filed: May 15, 2018
    Publication date: September 6, 2018
    Inventors: Serengulam V. Govindan, Zhengxing Qu, Hans J. Hansen, David M. Goldenberg
  • Patent number: 9999668
    Abstract: This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: June 19, 2018
    Assignee: Immunomedics, Inc.
    Inventors: Serengulam V. Govindan, Zhengxing Qu, Hans J. Hansen, David M. Goldenberg
  • Publication number: 20180133322
    Abstract: This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.
    Type: Application
    Filed: November 17, 2017
    Publication date: May 17, 2018
    Inventors: Serengulam V. Govindan, Zhengxing Qu, Hans J. Hansen, David M. Goldenberg
  • Patent number: 9849176
    Abstract: This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: December 26, 2017
    Assignee: Immunomedics, Inc.
    Inventors: Serengulam V. Govindan, Zhengxing Qu, Hans J. Hansen, David M. Goldenberg
  • Patent number: 9833511
    Abstract: This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: December 5, 2017
    Assignee: Immunomedics, Inc.
    Inventors: Serengulam V. Govindan, Zhengxing Qu, Hans J. Hansen, David M. Goldenberg
  • Publication number: 20170274079
    Abstract: This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 28, 2017
    Inventors: Serengulam V. Govindan, Zhengxing Qu, Hans J. Hansen, David M. Goldenberg
  • Patent number: 9745380
    Abstract: This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: August 29, 2017
    Assignee: Immunomedics, Inc.
    Inventors: Serengulam Govindan, Zhengxing Qu, Hans Hansen, David M. Goldenberg
  • Publication number: 20170152315
    Abstract: The present invention provides humanized, chimeric and human anti-CD19 antibodies, anti-CD19 antibody fusion proteins, and fragments thereof that bind to a human B cell marker. Such antibodies, fusion proteins and fragments thereof are useful for the treatment and diagnosis of various B-cell disorders, including B-cell malignancies and autoimmune diseases. In more particular embodiments, the humanized anti-CD19 antibodies may comprise one or more framework region amino acid substitutions designed to improve protein stability, antibody binding and/or expression levels. In a particularly preferred embodiment, the substitutions comprise a Ser9lPhe substitution in the hA19 VH sequence.
    Type: Application
    Filed: February 14, 2017
    Publication date: June 1, 2017
    Inventors: Hans J. Hansen, Zhengxing Qu, David M. Goldenberg
  • Patent number: 9605071
    Abstract: The present invention provides humanized, chimeric and human anti-CD19 antibodies, anti-CD19 antibody fusion proteins, and fragments thereof that bind to a human B cell marker. Such antibodies, fusion proteins and fragments thereof are useful for the treatment and diagnosis of various B-cell disorders, including B-cell malignancies and autoimmune diseases. In more particular embodiments, the humanized anti-CD19 antibodies may comprise one or more framework region amino acid substitutions designed to improve protein stability, antibody binding and/or expression levels. In a particularly preferred embodiment, the substitutions comprise a Ser9lPhe substitution in the hA19 VH sequence.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: March 28, 2017
    Assignee: Immunomedics, Inc.
    Inventors: Hans J. Hansen, Zhengxing Qu, David M. Goldenberg
  • Patent number: 9506060
    Abstract: The disclosure relates to oligonucleotide compounds (oligomers) that target Myc mRNA in a cell, leading to reduced expression of Myc. Reduction of Myc expression is beneficial for the treatment of certain disorders, such as hyperproliferative disorders (e.g., cancer). The disclosure provides therapeutic compositions comprising oligomers and methods for modulating the expression of Myc using said oligomers, including methods of treatment.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: November 29, 2016
    Assignees: DANA-FARBER CANCER INSTITUTE, INC., ENZON PHARMACEUTICALS, INC.
    Inventors: Rajanikanth Bandaru, Yixian Zhang, Zhengxing Qu, Lee Greenberger, Christopher Ott, James Elliott Bradner
  • Publication number: 20160319020
    Abstract: The present invention provides humanized, chimeric and human anti-CD19 antibodies, anti-CD19 antibody fusion proteins, and fragments thereof that bind to a human B cell marker. Such antibodies, fusion proteins and fragments thereof are useful for the treatment and diagnosis of various B-cell disorders, including B-cell malignancies and autoimmune diseases. In more particular embodiments, the humanized anti-CD19 antibodies may comprise one or more framework region amino acid substitutions designed to improve protein stability, antibody binding and/or expression levels. In a particularly preferred embodiment, the substitutions comprise a Ser9lPhe substitution in the hA19 VH sequence.
    Type: Application
    Filed: June 27, 2016
    Publication date: November 3, 2016
    Inventors: Hans J. Hansen, Zhengxing Qu, David M. Goldenberg
  • Publication number: 20160024495
    Abstract: The disclosure relates to oligonucleotide compounds (oligomers) that target Myc mRNA in a cell, leading to reduced expression of Myc. Reduction of Myc expression is beneficial for the treatment of certain disorders, such as hyperproliferative disorders (e.g., cancer). The disclosure provides therapeutic compositions comprising oligomers and methods for modulating the expression of Myc using said oligomers, including methods of treatment.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 28, 2016
    Inventors: Rajanikanth Bandaru, Yixian Zhang, Zhengxing Qu, Lee Greenberger, Christopher Ott, James Elliott Bradner
  • Publication number: 20150306244
    Abstract: The invention relates to therapeutic conjugates with the ability to target various antigens. The conjugates contain a targeting antibody or antigen binding fragment thereof and an anthracycline chemotherapeutic drug. The targeting antibody and the chemotherapeutic drug are linked via a linker comprising a hydrazide moiety.
    Type: Application
    Filed: July 8, 2015
    Publication date: October 29, 2015
    Inventors: Gary L. Griffiths, Hans J. Hansen, Zhengxing Qu, David M. Goldenberg
  • Publication number: 20150252110
    Abstract: The present invention provides humanized, chimeric and human anti-CD19 antibodies, anti-CD19 antibody fusion proteins, and fragments thereof that bind to a human B cell marker. Such antibodies, fusion proteins and fragments thereof are useful for the treatment and diagnosis of various B-cell disorders, including B-cell malignancies and autoimmune diseases. In more particular embodiments, the humanized anti-CD19 antibodies may comprise one or more framework region amino acid substitutions designed to improve protein stability, antibody binding and/or expression levels. In a particularly preferred embodiment, the substitutions comprise a Ser9lPhe substitution in the hA19 VH sequence.
    Type: Application
    Filed: May 8, 2015
    Publication date: September 10, 2015
    Inventors: Hans J. Hansen, Zhengxing Qu, David M. Goldenberg
  • Patent number: 9107962
    Abstract: The invention relates to therapeutic conjugates with the ability to target various antigens. The conjugates contain a targeting antibody or antigen binding fragment thereof and an anthracycline chemotherapeutic drug. The targeting antibody and the chemotherapeutic drug are linked via a linker comprising a hydrazide moiety.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: August 18, 2015
    Assignee: Immunomedics, Inc.
    Inventors: Gary L. Griffiths, Hans J. Hansen, Zhengxing Qu, David M. Goldenberg
  • Publication number: 20150166659
    Abstract: Humanized antibodies are provided that specifically bind HLA-DR. The antibodies recognize the epitope recognized by the murine monoclonal antibody L243. Processes for preparing such antibodies, pharmaceutical compositions containing such antibodies, and clinical therapeutic and diagnostic, as well as research-related uses for such antibodies, are provided.
    Type: Application
    Filed: February 24, 2015
    Publication date: June 18, 2015
    Inventors: David M. Goldenberg, Hans J. Hansen, Zhengxing Qu, Chien-Hsing Chang
  • Patent number: 9056917
    Abstract: The present invention provides humanized, chimeric and human anti-CD19 antibodies, anti-CD19 antibody fusion proteins, and fragments thereof that bind to a human B cell marker. Such antibodies, fusion proteins and fragments thereof are useful for the treatment and diagnosis of various B-cell disorders, including B-cell malignancies and autoimmune diseases. In more particular embodiments, the humanized anti-CD19 antibodies may comprise one or more framework region amino acid substitutions designed to improve protein stability, antibody binding and/or expression levels. In a particularly preferred embodiment, the substitutions comprise a Ser91Phe substitution in the hA19 VH sequence.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: June 16, 2015
    Assignee: Immunomedics, Inc.
    Inventors: Hans J. Hansen, Zhengxing Qu, David M. Goldenberg
  • Patent number: 9040493
    Abstract: The present invention relates to oligomer compounds (oligomers) for the treatment and prevention of acute myeloid leukemia, which target GLI2 mRNA in a cell, leading to reduced expression of GLI2.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: May 26, 2015
    Assignee: Santaris Pharma A/S
    Inventors: Yixian Zhang, Zhengxing Qu