Patents by Inventor Xiaohu Fan

Xiaohu Fan 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: 12258418
    Abstract: Described herein are binding moieties, such as antibodies, that specifically bind Claudin18.2, and chimeric antigen receptors comprising such binding moieties. Further provided are engineered immune cells (such as T cells) comprising anti-Claudin 18.2 chimeric antigen receptors. Also disclosed are methods of treating Claudin18.2-expressing tumor or cancers using the binding moieties, chimeric antigen receptors and engineered immune cells.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: March 25, 2025
    Assignees: Nanjing GenScript Biotech Co., Ltd., Nanjing Legend Biotech Co., Ltd
    Inventors: Liusong Yin, Tielin Zhou, Zhuo Fang, Yong Liu, Qiuchuan Zhuang, Bo Wu, Xiaohu Fan, Qingshan Zhang, Dan Zhao, Jie Mao
  • Publication number: 20250062699
    Abstract: Disclosed are a high-voltage three-phase four-bridge-arm topology structure and an inverter. The topology structure includes four bridge-arm circuits and a converter; one end of first bridge-arm circuit is connected to an A-phase high voltage line and the other end is connected to a first conversion module, one end of second bridge-arm circuit to a B-phase high voltage line and the other end to a second conversion module; one end of third bridge-arm circuit to a C-phase high voltage line and the other end to a third conversion module; one end of fourth bridge arm circuit to a ground line and the other end to a fourth conversion module, and the fourth bridge arm circuit is used to perform voltage compensation on the output voltages of the first bridge arm circuit, second bridge arm circuit, and third bridge arm circuit when the three phase high voltage lines are unbalanced.
    Type: Application
    Filed: July 8, 2024
    Publication date: February 20, 2025
    Inventors: Yong YANG, Jianliang MAO, Lingfeng MAO, Junlong DING, Pan WANG, Xiaohu FAN, Huiqing WEN, Weiguo HUANG
  • Patent number: 12231062
    Abstract: Disclosed are a high-voltage three-phase four-bridge-arm topology structure and an inverter. The topology structure includes four bridge-arm circuits and a converter; one end of first bridge-arm circuit is connected to an A-phase high voltage line and the other end is connected to a first conversion module, one end of second bridge-arm circuit to a B-phase high voltage line and the other end to a second conversion module; one end of third bridge-arm circuit to a C-phase high voltage line and the other end to a third conversion module; one end of fourth bridge arm circuit to a ground line and the other end to a fourth conversion module, and the fourth bridge arm circuit is used to perform voltage compensation on the output voltages of the first bridge arm circuit, second bridge arm circuit, and third bridge arm circuit when the three phase high voltage lines are unbalanced.
    Type: Grant
    Filed: July 8, 2024
    Date of Patent: February 18, 2025
    Assignee: Jiangsu Koyoe Energy Technology Co., Ltd.
    Inventors: Yong Yang, Jianliang Mao, Lingfeng Mao, Junlong Ding, Pan Wang, Xiaohu Fan, Huiqing Wen, Weiguo Huang
  • Publication number: 20240409654
    Abstract: The present application provides single-domain antibodies targeting BCMA, and chimeric antigen receptors (such as monovalent CAR, and multivalent CAR including bi-epitope CAR) comprising one or more anti-BCMA single-domain antibodies. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating cancer are also provided.
    Type: Application
    Filed: August 28, 2024
    Publication date: December 12, 2024
    Applicant: LEGEND BIOTECH USA INC.
    Inventors: Xiaohu FAN, Qiuchuan ZHUANG, Pingyan WANG, Lin WANG, Lei YANG, Jiaying HAO, Dan ZHAO, Xian HE
  • Publication number: 20240366761
    Abstract: The present application provides fusion proteins that have two polypeptides, each having an extracellular domain and an intracellular domain, and the two extracellular domains form a binding site for TGF? and the two intracellular domains form the intracellular domain of an IL-23 receptor complex. The present application also provides nucleic acids encoding the fusion proteins, vectors comprising the nucleic acids, and engineered cells expressing the fusion proteins. Method of producing the engineered cells and methods of treatment that involves administering engineered cells are also provided.
    Type: Application
    Filed: April 15, 2022
    Publication date: November 7, 2024
    Inventors: Xiaohu FAN, Jun WANG, Jie MAO, Ershao ZHANG, Qing WEI, Lian MA
  • Publication number: 20240350545
    Abstract: The present application provides modified immune cells that express TLR receptors. In some embodiments, the modified immune cell further comprises an engineered receptor such as a chimeric antigen receptor (CAR). The present application also provides methods and pharmaceutical compositions for cancer treatment using the modified immune cells described herein.
    Type: Application
    Filed: August 18, 2022
    Publication date: October 24, 2024
    Inventors: Yanliang ZHU, Qingling JIANG, Zhongyuan TU, Yafeng ZHANG, Shu WU, Xiaohu FAN
  • Publication number: 20240316201
    Abstract: An immune effector cell expressing an exogenously introduced p40 subunit of IL-12; an exogenously introduced ligand of CCR7 (such as CCL-19 and CCL-21); and a functional exogenous receptor (such as a chimeric antigen receptor) comprising an extracellular antigen binding domain, a transmembrane domain, and an intracellular signaling domain.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 26, 2024
    Inventors: Xiaohu Fan, Jie Mao, Qiuchuan ZHUANG, Changjiang Zhang
  • Publication number: 20240209050
    Abstract: The present application provides modified immune cells expressing a mutant IL-15 polypeptide. In some embodiments, the modified immune cell further comprises an engineered receptor such as a chimeric antigen receptor (CAR). The present application also provides methods and pharmaceutical compositions for cancer treatment using the modified immune cells described herein.
    Type: Application
    Filed: July 8, 2022
    Publication date: June 27, 2024
    Inventors: Ming ZENG, Huihui ZHANG, Zhigang LI, Xiaohu FAN, Shuai YANG, Xiaojie TU, Shu WU
  • Publication number: 20240000836
    Abstract: Provided herein is a method of treating a subject who has multiple myeloma. A single infusion of chimeric antigen receptor (CAR)-T cells comprising an anti-BCMA CAR comprising a polypeptide is administered to the subject. In certain embodiments, the dose of CAR-T cells administered to the subject is from 1.0×105 to 5.0×106 of CAR-T cells per kilogram of the subject's mass. The method of treatment is effective in obtaining and maintaining minimal residual disease negativity status, as well as other beneficial clinical outcomes related to efficacy and safety.
    Type: Application
    Filed: December 3, 2021
    Publication date: January 4, 2024
    Applicants: JANSSEN BIOTECH, INC., NANJING LEGEND BIOTECH CO., LTD.
    Inventors: Jordan Mark SCHECTER, Xiaohu FAN
  • Patent number: 11827713
    Abstract: Provided is a chimeric antibody immune cell engager comprising a target cell binding domain that specifically binds to an antigen on a target cell, and an immune effector cell binding domain comprising an antigen-binding fragment that specifically binds to an antigen on an immune effector cell. Also provided are pharmaceutical compositions, kits and methods of treatment.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: November 28, 2023
    Assignee: Nanjing Legend Biotech Co., Ltd.
    Inventors: Xiaohu Fan, Qiuchuan Zhuang, Lei Yang, Pingyan Wang, Qingyan Li
  • Publication number: 20230277589
    Abstract: Provided herein are methods of treating a subject who has multiple myeloma and has received prior treatment and has limited treatment options. Infusions of chimeric antigen receptor (CAR)-T cells comprising an anti-BCMA CAR comprising a polypeptide are administered to the subject. In certain embodiments, the dose of CAR-T cells administered to the subject is from 1.0 × 105 to 5.0 × 106 of CAR-T cells per kilogram of the subject’s mass. The method of treatment is effective in obtaining and maintaining minimal residual disease negativity status, as well as other beneficial clinical outcomes related to efficacy and safety.
    Type: Application
    Filed: November 3, 2022
    Publication date: September 7, 2023
    Applicants: JANSSEN BIOTECH, INC., NANJING LEGEND BIOTECH CO., LTD.
    Inventors: Muhammad AKRAM, Kevin DEBRAGANCA, Xiaohu FAN, Dong GENG, Tonia NESHEIWAT, Lida PACAUD, Jordan SCHECTER, Helen VARSOS, Enrique ZUDAIRE
  • Publication number: 20230270786
    Abstract: Provided herein are methods of treating a subject who has multiple myeloma with a ciltacabtagene autoleucel suspension. Also provided are pharmaceutical products containing ciltacabtagene autoleucel suspensions, instructions for use of the ciltacabtagene autoleucel suspensions, and methods for selling a drug product containing ciltacabtagene autoleucel suspensions.
    Type: Application
    Filed: February 27, 2023
    Publication date: August 31, 2023
    Applicants: JANSSEN BIOTECH, INC., NANJING LEGEND BIOTECH CO., LTD., LEGEND BIOTECH USA INC.
    Inventors: Xiaohu FAN, Jordan SCHECTER, Lida PACAUD, Michael HIRSCHMANN
  • Publication number: 20230272104
    Abstract: The present disclosure provides single domain antibodies that bind to CD20, and chimeric antigen receptors comprising same. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.
    Type: Application
    Filed: July 16, 2021
    Publication date: August 31, 2023
    Inventors: Xiaohu Fan, Zhe Zhou, Qiuchuan ZHUANG, Xu Fang, Hongbo PAN, Min Wei, Jianrui ZHU
  • Publication number: 20230257475
    Abstract: The present disclosure provides chimeric antigen receptors targeting CD20, CD19 and/or CD22. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.
    Type: Application
    Filed: July 16, 2021
    Publication date: August 17, 2023
    Inventors: Xiaohu Fan, Zhe Zhou, Hongbo PAN
  • Publication number: 20230250184
    Abstract: The present disclosure provides single domain antibodies that bind to CD22, and chimeric antigen receptors comprising same. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.
    Type: Application
    Filed: July 16, 2021
    Publication date: August 10, 2023
    Inventors: Xiaohu Fan, Zhe Zhou, Qiuchuan ZHUANG, Xu Fang, Yue HAN, Youguo PENG, Hefei HOU
  • Publication number: 20230192841
    Abstract: Single domain antibodies that bind to Claudin18.2, and chimeric antigen receptors comprising same are provided. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.
    Type: Application
    Filed: December 24, 2020
    Publication date: June 22, 2023
    Applicant: NANJING LEGEND BIOTECH CO., LTD.
    Inventors: Xiaohu FAN, Qiuchuan ZHUANG, Xu FANG, Qingshan ZHANG, Manman XU, Meng FENG
  • Publication number: 20230192883
    Abstract: The present disclosure provides single domain antibodies that bind to CD19, and chimeric antigen receptors comprising same. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.
    Type: Application
    Filed: July 16, 2021
    Publication date: June 22, 2023
    Inventors: Xiaohu Fan, Zhe Zhou, Qiuchuan ZHUANG, Xu Fang, Yue HAN, Youguo PENG, Manman LU
  • Publication number: 20230088461
    Abstract: Provided are anti-glypican-3 (GPC3) antibodies or antigen binding fragments thereof, and a chimeric antigen receptor (CAR) that binds glypican-3 (GPC3) containing an anti-GPC3 antibody in an extracellular domain, a transmembrane domain, and an intracellular signaling domain. Immune effector cells transduced with the disclosed CAR constructs can be used for cancer immunotherapy.
    Type: Application
    Filed: February 26, 2021
    Publication date: March 23, 2023
    Applicant: NANJING LEGEND BIOTECH CO., LTD.
    Inventors: Xiaohu FAN, Jie MAO, Qiuchuan ZHUANG, Ruixue WANG
  • Publication number: 20230085615
    Abstract: A modified T cell comprising a functional exogenous receptor is provided. The functional exogenous receptor comprises: (a) an extracellular ligand binding domain, (b) a transmembrane domain, and (c) an intracellular signaling domain (ISD) comprising a chimeric signaling domain (CMSD), wherein the CMSD comprises a plurality of Immune-receptor Tyrosine-based Activation Motifs (ITAMs) optionally connected by one or more linkers. Further provided are vectors, methods of producing, pharmaceutical compositions, kits, and methods of treatment thereof.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 16, 2023
    Applicant: Nanjing Legend Biotech Co., Ltd.
    Inventors: Xiaohu FAN, Yuncheng ZHAO, Bing WANG, Dawei YU, Xin HUANG, Pingyan WANG, Qiuchuan ZHUANG
  • Publication number: 20230058669
    Abstract: A chimeric antigen receptor (CAR) comprising a polypeptide comprising an extracellular antigen binding domain comprising a first BCMA binding moiety and a second BCMA binding moiety, wherein the first BCMA binding moiety is a first anti-BCMA single domain antibody, and the second BCMA binding moiety is a second anti-BCMA sdAb; and wherein each of the first and second sdAb is a VHH domain.
    Type: Application
    Filed: December 15, 2020
    Publication date: February 23, 2023
    Applicant: NANJING LEGEND BIOTECH CO., LTD.
    Inventors: Xiaohu FAN, Qiuchuan ZHUANG, Yuncheng ZHAO, Lei YANG, Xu FANG, Changmeng XU