Patents by Inventor Xiaoqiang Kang

Xiaoqiang Kang 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: 11912777
    Abstract: The present invention relates to a novel antibody and antibody fragment that specifically binds to TNFR2 and to a composition comprising said antibody or antibody fragment. In addition, the present invention relates to a nucleic acid encoding the antibody or an antibody fragment thereof and a host cell comprising the same, and to a related use thereof. Besides, the present invention relates to the use of the antibody and antibody fragment for treatment and diagnosis.
    Type: Grant
    Filed: December 9, 2022
    Date of Patent: February 27, 2024
    Assignee: Nanjing Leads Biolabs Co., Ltd.
    Inventors: Xiaoqiang Kang, Shoupeng Lai, Xiao Huang, Huan Lin, Yujia Dang
  • Publication number: 20240025967
    Abstract: A recombinant fusion protein comprising 1) TGF?R2, or a fragment thereof, capable of binding to TGF?, and 2) an antibody, or an antigen-binding fragment thereof, that binds to PD-1. Also disclosed are a polynucleotide encoding the recombinant fusion protein, an expression vector containing the polynucleotide, a method for producing the recombinant protein and a method for treating a disease caused by over expression of TGF? and/or PD-1 using the recombinant protein.
    Type: Application
    Filed: September 22, 2023
    Publication date: January 25, 2024
    Applicant: Nanjing Leads Biolabs Co., Ltd.
    Inventors: Xiaoqiang Kang, Xiao Huang
  • Patent number: 11807683
    Abstract: The present invention provides an isolated monoclonal antibody that specifically binds human TIM-3. The present invention further provides a pharmaceutical composition comprising the antibody, as well as uses thereof.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: November 7, 2023
    Assignee: Nanjing Leads Biolabs Co., Ltd.
    Inventors: Xiaoqiang Kang, Shoupeng Lai, Xiao Huang
  • Patent number: 11802145
    Abstract: A recombinant fusion protein comprising 1) TGF?R2, or a fragment thereof, capable of binding to TGF?, and 2) an antibody, or an antigen-binding fragment thereof, that binds to PD-1. Also disclosed are a polynucleotide encoding the recombinant fusion protein, an expression vector containing the polynucleotide, a method for producing the recombinant protein and a method for treating a disease caused by over expression of TGF? and/or PD-1 using the recombinant protein.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: October 31, 2023
    Assignee: Nanjing Leads Biolabs Co., Ltd.
    Inventors: Xiaoqiang Kang, Xiao Huang
  • Publication number: 20230212302
    Abstract: The present invention relates to a novel antibody and antibody fragment that specifically binds to TNFR2 and to a composition comprising said antibody or antibody fragment. In addition, the present invention relates to a nucleic acid encoding the antibody or an antibody fragment thereof and a host cell comprising the same, and to a related use thereof. Besides, the present invention relates to the use of the antibody and antibody fragment for treatment and diagnosis.
    Type: Application
    Filed: December 9, 2022
    Publication date: July 6, 2023
    Applicant: Nanjing Leads Biolabs Co., Ltd.
    Inventors: Xiaoqiang Kang, Shoupeng Lai, Xiao Huang, Huan Lin, Yujia Dang
  • Publication number: 20230192862
    Abstract: Disclosed is an isolated monoclonal antibody that specifically binds human 4-1BB, or the antigen-binding portion thereof. A nucleic acid molecule encoding the antibody, an expression vector, a host cell and a method for expressing the antibody are also provided. The present disclosure further provides a bispecific molecule, and a pharmaceutical composition comprising the antibody or the bispecific molecule, as well as a treatment method using an anti-4-1BB antibody of the disclosure.
    Type: Application
    Filed: October 7, 2022
    Publication date: June 22, 2023
    Applicant: Nanjing Leads Biolabs Co., Ltd.
    Inventors: Xiaoqiang Kang, Xiao Huang, Jianming Sun
  • Patent number: 11466086
    Abstract: Disclosed is an isolated monoclonal antibody that specifically binds human 4-1BB, or the antigen-binding portion thereof. A nucleic acid molecule encoding the antibody, an expression vector, a host cell and a method for expressing the antibody are also provided. The present disclosure further provides a bispecific molecule, and a pharmaceutical composition comprising the antibody or the bispecific molecule, as well as a treatment method using an anti-4-1BB antibody of the disclosure.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: October 11, 2022
    Assignee: Nanjing Leads Biolabs Co., Ltd.
    Inventors: Xiaoqiang Kang, Xiao Huang, Jianming Sun
  • Patent number: 11136394
    Abstract: The present invention provides an isolated monoclonal antibody that specifically binds human PD-1. A nucleic acid molecule encoding the antibody, an expression vector, a host cell and a method for expressing the antibody are also provided. The present invention further provides an immunoconjugate, a bispecific molecule and a pharmaceutical composition comprising the antibody, as well as a diagnostic and treatment method using an anti-PD-1 antibody of the invention.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: October 5, 2021
    Assignee: Nanjing Leads Biolabs Co., Ltd.
    Inventors: Xiaoqiang Kang, Shoupeng Lai, Xiao Huang
  • Publication number: 20210221885
    Abstract: The present invention provides an isolated monoclonal antibody that specifically binds human TIM-3. The present invention further provides a pharmaceutical composition comprising the antibody, as well as uses thereof.
    Type: Application
    Filed: April 11, 2019
    Publication date: July 22, 2021
    Inventors: Xiaoqiang Kang, Shoupeng Lai, Xiao Huang
  • Publication number: 20210115142
    Abstract: A recombinant fusion protein comprising 1) TGF?R2, or a fragment thereof, capable of binding to TGF?, and 2) an antibody, or an antigen-binding fragment thereof, that binds to PD-1. Also disclosed are a polynucleotide encoding the recombinant fusion protein, an expression vector containing the polynucleotide, a method for producing the recombinant protein and a method for treating a disease caused by over expression of TGF? and/or PD-1 using the recombinant protein.
    Type: Application
    Filed: October 20, 2020
    Publication date: April 22, 2021
    Applicant: Nanjing Leads Biolabs Co., Ltd.
    Inventors: Xiaoqiang Kang, Xiao Huang
  • Publication number: 20210107982
    Abstract: Disclosed is an isolated monoclonal antibody that specifically binds human 4-1BB, or the antigen-binding portion thereof. A nucleic acid molecule encoding the antibody, an expression vector, a host cell and a method for expressing the antibody are also provided. The present disclosure further provides a bispecific molecule, and a pharmaceutical composition comprising the antibody or the bispecific molecule, as well as a treatment method using an anti-4-1BB antibody of the disclosure.
    Type: Application
    Filed: September 30, 2020
    Publication date: April 15, 2021
    Applicant: Nanjing Leads Biolabs Co., Ltd.
    Inventors: Xiaoqiang Kang, Xiao Huang, Jianming Sun
  • Patent number: 10844121
    Abstract: The present invention provides an isolated monoclonal antibody that specifically binds LAG-3. A nucleic acid molecule encoding the antibody, an expression vector, a host cell and a method for expressing the antibody are also provided. The present invention further provides an immunoconjugate, a bispecific molecule and a pharmaceutical composition comprising the antibody, as well as a diagnostic and treatment method using an anti-LAG-3 antibody of the invention.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: November 24, 2020
    Assignee: NANJING LEADS BIOLABS CO., LTD
    Inventors: Xiaoqiang Kang, Shoupeng Lai, Xiao Huang, Lijun Zhou
  • Publication number: 20190352402
    Abstract: The present invention provides an isolated monoclonal antibody that specifically binds human PD-1. A nucleic acid molecule encoding the antibody, an expression vector, a host cell and a method for expressing the antibody are also provided. The present invention further provides an immunoconjugate, a bispecific molecule and a pharmaceutical composition comprising the antibody, as well as a diagnostic and treatment method using an anti-PD-1 antibody of the invention.
    Type: Application
    Filed: May 16, 2019
    Publication date: November 21, 2019
    Inventors: Xiaoqiang KANG, Shoupeng LAI, Xiao HUANG
  • Publication number: 20190016800
    Abstract: The present invention provides an isolated monoclonal antibody that specifically binds LAG-3. A nucleic acid molecule encoding the antibody, an expression vector, a host cell and a method for expressing the antibody are also provided. The present invention further provides an immunoconjugate, a bispecific molecule and a pharmaceutical composition comprising the antibody, as well as a diagnostic and treatment method using an anti-LAG-3 antibody of the invention.
    Type: Application
    Filed: July 12, 2018
    Publication date: January 17, 2019
    Inventors: Xiaoqiang KANG, Shoupeng LAI, Xiao HUANG, Lijun ZHOU
  • Patent number: 7951370
    Abstract: The present invention provides for fully human antibodies and chimeric antibodies that bind human TYRP1 antigen with an affinity comparable to or higher than TA99, a murine antibody specific to TYRP1. The invention further provides polynucleic acids and host cells that encode and express these antibodies. The invention also provides for methods of modulating activity of TYRP1, treating growth of a cancer cell, and treating a malignant melanoma in mammals by administering an effective amount of an antibody either alone or in combination with an anti-cancer agent or treatment.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: May 31, 2011
    Assignee: ImClone LLC
    Inventors: Paul J. Balderes, Xiaoqiang Kang
  • Publication number: 20090232823
    Abstract: The present invention provides for fully human antibodies and chimeric antibodies that bind human TYRP1 antigen with an affinity comparable to or higher than TA99, a murine antibody specific to TYRP1. The invention further provides polynucleic acids and host cells that encode and express these antibodies. The invention also provides for methods of modulating activity of TYRP1, treating growth of a cancer cell, and treating a malignant melanoma in mammals by administering an effective amount of an antibody either alone or in combination with an anti-cancer agent or treatment.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 17, 2009
    Inventors: Paul J. Balderes, Xiaoqiang Kang
  • Publication number: 20040132972
    Abstract: The present invention relates to novel tri-hybrid melanoma antigens, including antigenic fragments or derivatives thereof, of a tyrosinase (TYR) antigen, a tyrosinase-related protein 1 (TRP-1) antigen, and a tyrosinase-related protein 2 (TRP-2) antigen and nucleic acids encoding them. The novel tri-hybrid melanoma antigens of the present invention are useful in the diagnosis, treatment and prevention of human neoplasms, including malignant tumors, such as carcinomas, sarcomas, leukemia, and lymphomas, and pre-malignant lesions, such as adenomas and dysplastic lesions.
    Type: Application
    Filed: January 13, 2004
    Publication date: July 8, 2004
    Inventors: Xiaoqiang Kang, Daniel J. Hicklin