Patents by Inventor Xuechen Li

Xuechen Li 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: 20240084027
    Abstract: Disclosed is a multi-specific antibody targeting CD40 and PD-L1, as well as its use in the treatment of diseases such as tumors.
    Type: Application
    Filed: August 15, 2023
    Publication date: March 14, 2024
    Inventors: Jiangmei LI, Xuechen ZHOU, Wenqi HU, Feng LI
  • Publication number: 20230278971
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (II): The present methods include administering to a subject an effective amount of one or more compounds of Formula (II). In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 7, 2023
    Inventors: Yi Tsun Richard KAO, Peng GAO, Xuechen LI, Ming LIU
  • Patent number: 11667674
    Abstract: Cyclic lipopeptides having one or more modifications relative to daptomycin, and methods of making them are provided. The cyclic lipopeptides can be used as antibacterial agents. The daptomycin analogues are generated by chemical synthesis, which makes introduction of an unnatural amino acid and any modification into daptomycin possible. Pharmaceutical compositions and method of use thereof for the disclosed daptomycin analogues are also provided.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: June 6, 2023
    Assignee: VERSITECH LIMITED
    Inventors: Xuechen Li, Hoi Yee Chow
  • Publication number: 20230041593
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (I): In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Application
    Filed: September 20, 2022
    Publication date: February 9, 2023
    Inventors: Yi Tsun Richard KAO, Peng GAO, Xuechen LI, Ming LIU
  • Patent number: 11446280
    Abstract: Provided herein are compounds, derivatives thereof, and compositions including one or more of the compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (I): The present methods include administering to a subject an effective amount of one or more compounds of Formula (I). In one embodiment, the microbial infections are bacterial infections. More specifically, the bacterial infections are staphylococcal infections.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: September 20, 2022
    Assignee: VERSITECH LIMITED
    Inventors: Yi Tsun Richard Kao, Peng Gao, Xuechen Li, Ming Liu
  • Publication number: 20220273760
    Abstract: Pharmaceuticals, and specifically a Teixobactin analogue and use thereof. A pharmaceutical composition having the compound and use of the compound and the pharmaceutical composition thereof inhibits the growth and/or reproduction of Gram-positive bacteria or Mycobacterium tuberculosis.
    Type: Application
    Filed: July 23, 2020
    Publication date: September 1, 2022
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Qingyun REN, Zhimin XIONG, Yingjun ZHANG, Xuechen LI, Xianwu FU, Ali HUANG, Huichao LUO
  • Publication number: 20220213138
    Abstract: Disclosed are compounds and methods for highly effective chemoselective peptide cyclization and bicyclization directly on unprotected peptides and other compounds as well as the compounds produced by the methods, which have a novel structural motif. The fast reaction rate and operational simplicity render this method to be highly effective to synthesize cyclic structures, i.e. cyclic peptides. The cyclic compounds allow for various functionalities useful in chemical biology study and drug discovery.
    Type: Application
    Filed: April 4, 2019
    Publication date: July 7, 2022
    Inventors: Xuechen Li, Yue Zhang
  • Publication number: 20220017462
    Abstract: Provided herein are novel ortho-Phthalaldehyde (OPA) containing linkers (OPA-L) and the use of OPA-L for the preparation of Antibody-drug conjugate (ADC) via the formation of Phthalimidine through the reaction of primary amine on antibody (e.g., residue of Lysine) and ortho-Phthalaldehyde. The advantage of this OPA-L is high reactivity and can be applied in different types of antibodies to form stably-linked conjugates. The use of OPA-L for the preparation of ADC is advantageous for mild and wide condition of conjugation, for instance, low percentage of organic solvent required, wide range of pH and temperature can be used.
    Type: Application
    Filed: November 21, 2019
    Publication date: January 20, 2022
    Inventors: Xuechen LI, Mingzhi JIN, Yue ZHANG, Li YIN, Jun WANG
  • Publication number: 20210324009
    Abstract: Provided herein are calcium-dependent antibiotics (CDAs), as a novel therapeutic target for treating bacterial infections. The present invention also relates to pharmaceutical compositions comprising such compounds, and to methods of use thereof for combating bacteria and treating bacterial infections.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 21, 2021
    Inventors: Xuechen LI, Delin CHEN
  • Publication number: 20210309622
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (II): The present methods include administering to a subject an effective amount of one or more compounds of Formula (II). In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 7, 2021
    Inventors: Yi Tsun Richard KAO, Peng GAO, Xuechen LI, Ming LIU
  • Patent number: 11052078
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (II): The present methods include administering to a subject an effective amount of one or more compounds of Formula (II). In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: July 6, 2021
    Assignee: Versitech Limited
    Inventors: Yi Tsun Richard Kao, Peng Gao, Xuechen Li, Ming Liu
  • Patent number: 11040949
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (II): The present methods include administering to a subject an effective amount of one or more compounds of Formula (II). In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: June 22, 2021
    Assignee: Versitech Limited
    Inventors: Yi Tsun Richard Kao, Peng Gao, Xuechen Li, Ming Liu
  • Publication number: 20210060121
    Abstract: The invention pertains to a new class of cyclic peptides as antibiotics. The antibiotics of the invention are derivatives of teixobactin. Teixobactin is modified to develop teixobactin analogues with improved antibacterial and therapeutic properties. Pharmaceutical compositions comprising the antibiotics of the invention and pharmaceutically acceptable carriers or excipients are also provided. Further provided are methods of treating an infection by an agent in a subject by administering to the subject the antibiotics described herein.
    Type: Application
    Filed: December 20, 2018
    Publication date: March 4, 2021
    Inventors: Xuechen LI, Kang JIN, Sheng CHEN, Kathy Hiu Laam PO
  • Publication number: 20200392095
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (II): The present methods include administering to a subject an effective amount of one or more compounds of Formula (II). In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Application
    Filed: August 31, 2020
    Publication date: December 17, 2020
    Inventors: Yi Tsun Richard KAO, Peng GAO, Xuechen LI, Ming LIU
  • Publication number: 20200261438
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (II): The present methods include administering to a subject an effective amount of one or more compounds of Formula (II). In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Inventors: Yi Tsun Richard KAO, Peng GAO, Xuechen LI, Ming LIU
  • Patent number: 10647746
    Abstract: Described are design and generation of a set of novel cyclic lipopeptides as potential antibacterial agents. New daptomycin analogues are generated by chemical synthesis, which makes introduction of an unnatural amino acid and any modification into daptomycin possible.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: May 12, 2020
    Assignee: Versitech Limited
    Inventor: Xuechen Li
  • Publication number: 20200069642
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (I): The present methods include administering to a subject an effective amount of one or more compounds of Formula (I). In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Application
    Filed: November 11, 2019
    Publication date: March 5, 2020
    Inventors: Yi Tsun Richard KAO, Peng GAO, Xuechen LI, Ming LIU
  • Publication number: 20200010506
    Abstract: Cyclic lipopeptides having one or more modifications relative to daptomycin, and methods of making them are provided. The cyclic lipopeptides can be used as antibacterial agents. The daptomycin analogues are generated by chemical synthesis, which makes introduction of an unnatural amino acid and any modification into daptomycin possible. Pharmaceutical compositions and method of use thereof for the disclosed daptomycin analogues are also provided.
    Type: Application
    Filed: March 24, 2017
    Publication date: January 9, 2020
    Inventors: Xuechen Li, Hoi Yee Chow
  • Patent number: 10471045
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (I): The present methods include administering to a subject an effective amount of one or more compounds of Formula (I). In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Grant
    Filed: July 22, 2018
    Date of Patent: November 12, 2019
    Assignee: The University of Hong Kong
    Inventors: Yi Tsun Richard Kao, Peng Gao, Xuechen Li, Ming Liu
  • Patent number: 10377699
    Abstract: A method for the synthesis of daptomycin or a daptomycin analog is carried out on a resin to form a linear precursor followed by a serine ligation macrocyclization in solution. Daptomycin analogs can differ from daptomycin by substitution of amino acids residues and/or deletion or addition of amino acid residues. Daptomycin analogs can include a different fatty acid in the side arm of the daptomycin analog.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: August 13, 2019
    Assignee: The University of Hong Kong
    Inventors: Xuechen Li, Hiu Yung Lam