Patents Assigned to I-MAB
  • Publication number: 20250145718
    Abstract: The present disclosure provides a polynucleotide encoding the anti-PD-L1/anti-4-1BB bispecific antibody capable to effectively block the interactions between PD-L1 and its receptor PD-1 and between 4-1BB and its ligand. The bispecific antibody may have high binding affinity to both of a PD-L1 protein and a 4-1BB protein.
    Type: Application
    Filed: January 7, 2025
    Publication date: May 8, 2025
    Applicants: ABL BIO INC., I-MAB BIOPHARMA US LIMITED
    Inventors: Eunyoung PARK, Yangsoon LEE, Hyejin CHUNG, Eunsil SUNG, Jiseon YOO, Minji PARK, Yong-Gyu SON, Hyoju CHOI, Eunjung KIM, Jaeho JUNG, Weon-Kyoo YOU, Sang Hoon LEE, Lei FANG, Wenqing JIANG
  • Publication number: 20250074995
    Abstract: Provided are bispecific and multi-specific antibodies that target claudin 6 (CLDN6) and 4-1BB. These antibodies, in the absence of CLDN6-expressing cells, can bind to 4-1BB but are unable to activate 4-1BB signaling. In the presence of CLDN6-expressing cells, however, these antibodies can trigger CLDN6-dependent 4-1BB signaling, leading to potent immune response to the CLDN6-expressing tumor cells.
    Type: Application
    Filed: January 9, 2023
    Publication date: March 6, 2025
    Applicant: I-Mab Biopharma Co., Ltd.
    Inventors: Wenqing JIANG, Jian LI, Xi CHEN, Yan LIU, Bingshi GUO
  • Patent number: 12195538
    Abstract: The present disclosure provides an anti-PD-L1/anti-4-1BB bispecific antibody capable to effectively block the interactions between PD-L1 and its receptor PD-1 and between 4-1BB and its ligand. The bispecific antibody may have high binding affinity to both of a PD-L1 protein and a 4-1BB protein.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: January 14, 2025
    Assignees: ABL BIO INC., I-MAB BIOPHARMA US LIMITED
    Inventors: Eunyoung Park, Yangsoon Lee, Hyejin Chung, Eunsil Sung, Jiseon Yoo, Minji Park, Yong-Gyu Son, Hyoju Choi, Eunjung Kim, Jaeho Jung, Weon-Kyoo You, Sang Hoon Lee, Lei Fang, Wenqing Jiang
  • Patent number: 12145982
    Abstract: Provided are antibodies or fragments thereof having binding specificity to the human chemokine (C-X-C motif) ligand 13 (CXCL13) protein. In various examples, the antibodies or fragments thereof include a VH and VL CDRs as disclosed herein, or variants thereof. Methods of using the antibodies or fragments thereof for treating autoimmune diseases and disorders are also provided.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: November 19, 2024
    Assignee: I-Mab Biopharma US Limited
    Inventors: Haijuan Gu, Qiumei Yang
  • Patent number: 12091467
    Abstract: The present invention provides novel CD47 antibodies or immunologically active fragments thereof that have low immunogenicity in humans and cause low or no level of red blood cell depletion or hemagglutination, as well as pharmaceutical compositions containing such antibodies that can be used for treatment diseases mediated by CD47 or inhibition of phagocytosis or platelet aggregation.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: September 17, 2024
    Assignee: I-Mab Biopharma US Limited
    Inventors: Zhengyi Wang, Lei Fang, Bingshi Guo, Jingwu Zang
  • Patent number: 11926662
    Abstract: Provided are anti-GM-CSF antibodies or fragments thereof including humanized antibodies and fragments. Also provided are uses of the antibodies and fragments for therapeutic, diagnostic and prognostic purposes. Therapeutic uses of the antibodies and fragments, for example include the treatment of inflammatory and autoimmune diseases and disorders.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: March 12, 2024
    Assignee: I-Mab Biopharma (Hangzhou) Co., Ltd.
    Inventors: Zhengyi Wang, Lei Fang, Bingshi Guo, Jingwu Zang
  • Patent number: 11613577
    Abstract: Provided are anti-CD73 antibodies or fragments thereof. The antibodies or fragments therefore include a VH CDR1 of SEQ ID NO: 1, a VH CDR2 of SEQ ID NO: 2, a VH CDR3 of SEQ ID NO: 3, a VL CDR1 of SEQ ID NO: 4, a VL CDR2 of SEQ ID NO: 5, and a VL CDR3 of SEQ ID NO: 6, or variants of each thereof. More generally, antibodies or fragments thereof are described which have specificity to one or more amino acid residues selected from the C-terminal half of a human CD73 protein, such as those in the C-terminal domains. Specific epitope amino acids in these domains include Y345, D399, E400, R401 and R480. Methods of using the antibodies or fragments thereof for treating and diagnosing diseases such as cancer are also provided.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: March 28, 2023
    Assignee: I-MAB
    Inventors: Zhengyi Wang, Lei Fang, Bingshi Guo, Jingwu Zang
  • Patent number: 11414485
    Abstract: The present disclosure provides antibodies that bind Lymphocyte Activation Gene-3 (LAG-3). Also provided are methods of stimulating an immune response, inhibiting growth of tumor cells, and treating an autoimmune, inflammatory, or viral disease.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: August 16, 2022
    Assignee: I-MAB BIOPHARMA (HANGZHOU) CO., LTD.
    Inventors: Lei Fang, Zhengyi Wang, Bingshi Guo, Jingwu Zang, Wenqing Jiang, Yongqiang Wang
  • Patent number: 11401331
    Abstract: Provided are fusion molecule having a PD-L1 inhibitor fused to a human IL-7 protein or fragment thereof through a peptide linker. The disclosed fusion molecules exhibited synergistic anti-tumor effects.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: August 2, 2022
    Assignee: I-Mab Biopharma US Limited
    Inventors: Lei Fang, Feifei Cui, Haijuan Gu, Zhengyi Wang, Bingshi Guo, Jingwu Zang
  • Patent number: 11261259
    Abstract: Provided are bispecific and multi-specific antibodies that target both claudin 18.2 (CLDN18.2) and 4-1BB. These antibodies, in the absence of CLDN18.2-expressing cells, can bind to 4-1BB but are unable to activate 4-1BB signaling. In the presence of CLDN18.2-expressing cells, however, these antibodies can trigger CLDN18.2-dependent 4-1BB signaling, leading to potent immune response to the CLDN18.2-expressing tumor cells.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: March 1, 2022
    Assignees: I-Mab Biopharma US Limited, ABL Bio Inc.
    Inventors: Wenqing Jiang, Lei Fang, Zhengyi Wang, Bingshi Guo, Eunyoung Park, Eunsil Sung, Byungje Sung
  • Publication number: 20220056136
    Abstract: The present disclosure provides an anti-PD-L1/anti-4-1BB bispecific antibody capable to effectively block the interactions between PD-L1 and its receptor PD-1 and between 4-1BB and its ligand. The bispecific antibody may have high binding affinity to both of a PD-L1 protein and a 4-1BB protein.
    Type: Application
    Filed: February 15, 2019
    Publication date: February 24, 2022
    Applicants: ABL BIO INC., I-MAB BIOPHARMA CO., LTD
    Inventors: Eunyoung PARK, Yangsoon LEE, Hyejin CHUNG, Eunsil SUNG, Jiseon YOO, Minji PARK, Yong-Gyu SON, Hyoju CHOI, Eunjung KIM, Jaeho JUNG, Weon-Kyoo YOU, Sang Hoon LEE, Lei FANG, Wenqing JIANG
  • Patent number: 11220546
    Abstract: Provided are anti-PD-L1 antibodies or fragments thereof. The antibodies or fragments thereof specifically bind to the immunoglobulin C domain of the PD-L1 protein. In various example, the antibodies or fragments thereof include a VH CDR1 of SEQ ID NO: 1, a VH CDR2 of SEQ ID NO: 116, a VH CDR3 of SEQ ID NO: 117, a VL CDR1 of SEQ ID NO: 4, a VL CDR2 of SEQ ID NO: 5, and a VL CDR3 of SEQ ID NO: 6, or variants of each thereof. Methods of using the antibodies or fragments thereof for treating and diagnosing diseases such as cancer and infectious diseases are also provided.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: January 11, 2022
    Assignee: I-Mab Biopharma US Limited
    Inventors: Lei Fang, Yongqiang Wang, Zhengyi Wang, Bingshi Guo, Jingwu Zang
  • Patent number: 11208486
    Abstract: Provided are full human anti-PD-L1 antibodies or fragments thereof. In various examples, the antibodies or fragments thereof include a VH CDR1, a VH CDR2, a VH CDR3, a VL CDR1, a VL CDR2, and a VL CDR3 which are selected from sequence groups of SEQ ID NO: 35-42, SEQ ID NO: 43-51, SEQ ID NO: 52-66, SEQ ID NO: 67-79, SEQ ID NO:80-88 and SEQ ID NO: 89-102, respectively, or variants of each thereof. Methods of using the antibodies or fragments thereof for treating and diagnosing diseases such as cancer and infectious diseases are also provided.
    Type: Grant
    Filed: April 26, 2020
    Date of Patent: December 28, 2021
    Assignee: I-Mab Biopharma US Limited
    Inventors: Lei Fang, Yuanyuan Yang, Zhengyi Wang, Bingshi Guo, Feifei Cui
  • Publication number: 20210269522
    Abstract: Provided are pharmaceutical compositions each comprising a glycosylation agent, an antibody that binds to human CD47, and a pharmaceutically acceptable carrier. Also provided are novel CD47 antibodies that bind to human CD47, wherein the antibodies bind to at least one epitope that is at one of the glycosylation sites of the CD47 protein of red blood cells (e. g, at least a glycosylation site near the epitope residues Gln31 and Thr34 in CD47).
    Type: Application
    Filed: October 31, 2019
    Publication date: September 2, 2021
    Applicant: I-Mab Biopharma US Limited
    Inventors: Zhengyi Wang, Wei Cao, Lei Fang, Bingshi Guo
  • Patent number: 11059897
    Abstract: Provided are antibodies or fragments thereof having binding specificity to the human interferon alpha and beta receptor subunit 1 (IFNAR1) protein. In various examples, the antibodies or fragments thereof include a VH and VL CDRs as provided, or variants thereof. Methods of using the antibodies or fragments thereof for treating autoimmune diseases and disorders are also provided.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: July 13, 2021
    Assignee: I-Mab Biopharma US Limited
    Inventors: Wei Cao, Weili Xu
  • Patent number: 11034771
    Abstract: Provided are bispecific antibodies capable of binding to human CD73 protein and human PD-L1 protein. These bispecific antibodies are effective in treating cancer.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: June 15, 2021
    Assignee: I-Mab Biopharma US Limited
    Inventors: Zhengyi Wang, Lei Fang, Bingshi Guo, Jingwu Zang, Qiumei Yang
  • Patent number: 11028164
    Abstract: Provided are antibodies or fragments thereof having binding specificity to the human chemokine (C-X-C motif) ligand 13 (CXCL 13) protein. In various examples, the antibodies or fragments thereof include a VH and VL CDRs as disclosed herein, or variants thereof. Methods of using the antibodies or fragments thereof for treating autoimmune diseases and disorders are also provided.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: June 8, 2021
    Assignee: I-Mab Biopharma US Limited
    Inventors: Haijuan Gu, Qiumei Yang
  • Patent number: 10973853
    Abstract: The present disclosure provides antibodies and fragments thereof having specificity to a human T cell immunoreceptor with Ig and ITIM domains (TIGIT) protein. Methods of using the antibodies or fragments thereof for treating and diagnosing diseases such as cancer and viral infections are also provided.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: April 13, 2021
    Assignee: I-Mab Biopharma US Limited
    Inventors: Feifei Cui, Lei Fang, Bingshi Guo, Zhengyi Wang, Jingwu Zang
  • Publication number: 20210095019
    Abstract: The present invention provides fusion proteins containing cytokines and novel CD47 antibodies or immunologically active fragments thereof, as well as pharmaceutical compositions containing such fusion proteins that can be used for treatment diseases mediated by CD47 or inhibition of phagocytosis or platelet aggregation. These fused proteins have low immunogenicity in humans and cause low or no level of red blood cell depletion or hemagglutination.
    Type: Application
    Filed: November 12, 2018
    Publication date: April 1, 2021
    Applicant: I-MAB
    Inventors: Zhengyi Wang, Wei Cao, Lei Fang, Bingshi Guo
  • Publication number: 20210054093
    Abstract: The present invention provides novel CD47 antibodies or immunologically active fragments thereof that have low immunogenicity in humans and cause low or no level of red blood cell depletion or hemagglutination, as well as pharmaceutical compositions containing such antibodies that can be used for treatment diseases mediated by CD47 or inhibition of phagocytosis or platelet aggregation.
    Type: Application
    Filed: August 10, 2020
    Publication date: February 25, 2021
    Applicant: I-Mab Biopharma US Limited
    Inventors: Zhengyi Wang, Lei Fang, Bingshi Guo, Jingwu Zang