Patents by Inventor Liqin Liu

Liqin Liu 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: 20250051413
    Abstract: The present application relates to novel chimeric molecules or prodrugs of IL-12. Specifically, disclosed provides a chimeric molecule, which comprises an IL-12 p40 subunit (p40), an IL-12 p35 subunit (p35), and which may further comprises a masking moiety (MM), and/or a carrier (C). Further included in the present application are methods of making and using the novel chimeric molecules or prodrugs.
    Type: Application
    Filed: January 12, 2022
    Publication date: February 13, 2025
    Applicant: AskGene Pharma Inc.
    Inventors: Yuefeng Lu, Chunxiao Yu, Liqin Liu
  • Patent number: 12173051
    Abstract: The invention is directed to bispecific molecules comprising an HIV-1 envelope targeting arm and an arm targeting an effector cell, compositions comprising these bispecific molecule and methods of use. In certain aspects, the bispecific molecules of the present invention can bind to two different targets or epitopes on two different cells within the first epitope is expressed on a different cell type than the second epitope, such that the bispecific molecules can bring the two cells together. In certain aspects, the bispecific molecules of the present invention can bind to two different cells, wherein the bispecific molecules comprises an arm with the binding specificity of A32, 7B2, CH27, CH28 or CH44.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: December 24, 2024
    Assignees: Duke University, MacroGenics, Inc., The University of North Carolina at Chapel Hill
    Inventors: Barton F. Haynes, Guido Ferrari, Scott Koenig, Leslie S. Johnson, Chia-Ying Kao Lam, Julia A. Sung, David M. Margolis, Liqin Liu, Jeffrey Lee Nordstrom
  • Publication number: 20240393560
    Abstract: The application provides an adjustment method and an adjustment apparatus for mutual parallelism of two back-to-back gratings, including parallelism adjustment of grating surfaces of the two gratings and parallelism adjustment of grating lines of the two gratings. Wherein a first grating and a second grating respectively disposed on both sides of the grating mounting plate are adjusted to be perpendicular to the same horizontal collimated light source respectively, so as to achieve the parallelism adjustment of the grating surfaces of the two gratings; light is emitted by a red light source, diffraction patterns formed by two gratings are displayed on a screen, more diffraction light spots are marked respectively, then marks are connected, and a mark connecting line of the first grating is adjusted to be parallel to a mark connecting line of the second grating, thereby completing the parallelism adjustment of the grating lines of the two gratings.
    Type: Application
    Filed: December 6, 2023
    Publication date: November 28, 2024
    Inventors: Lihua LEI, Lijie LIANG, Yujle ZHANG, Yuqing GUAN, Yaoqiong SHEN, Liqin LIU, Wenzhe ZOU, Chuangwei GUO, Yunxia FU, Yunxia FU
  • Publication number: 20240274737
    Abstract: A photovoltaic cell and a photovoltaic module. The photovoltaic cell includes a semiconductor substrate, a passivation layer arranged on a surface of the semiconductor substrate, a plurality busbars, and a plurality of electrode pads arranged on the passivation layer. Each of the plurality of electrode pads are electrically connected to an electrode line, and along a thickness direction of the photovoltaic cell, the plurality of electrode pads are arranged on a side of the plurality of busbars facing away from the passivation layer, or arranged on the passivation layer. Along a thickness direction of the photovoltaic cell, a vertical distance between a highest point of the plurality of electrode pads and a surface of the passivation layer is greater than or equal to a vertical distance between a highest point of the plurality of busbars and the surface of the passivation layer.
    Type: Application
    Filed: October 3, 2023
    Publication date: August 15, 2024
    Inventors: Zhiqiu GUO, Jingguo YANG, Liqin LIU, Yingli GUAN, Shiliang HUANG
  • Publication number: 20240243210
    Abstract: A photovoltaic module and a method for manufacturing the photovoltaic module are provided. A respective solar cell has a front surface and a rear surface opposite to the front surface, each of which has a plurality of electrodes formed thereon. Each connection member of the plurality of connection members is configured to connect two adjacent solar cells of the plurality of solar cells and has a first end portion disposed over the front surface of a first solar cell of the two adjacent solar cells and a second end portion disposed over the rear surface of a second solar cell of the two adjacent solar cells. Each encapsulation layer includes a first encapsulation sub-layer and a second encapsulation sub-layer, where flowability of the first encapsulation sub-layer is smaller than flowability of the second encapsulation sub-layer.
    Type: Application
    Filed: April 28, 2023
    Publication date: July 18, 2024
    Inventors: Zhiqiu GUO, Liqin LIU, Chi ZHANG, Shiliang HUANG, Guohui HAO
  • Publication number: 20240233818
    Abstract: The present invention is directed to binding molecules that possess one or more epitope-binding sites specific for an epitope of CD137 and one or more epitope-binding sites specific for an epitope of a tumor antigen (“TA”) (e.g., a “CD137×TA Binding Molecule”). In one embodiment, such CD137×TA Binding Molecules will be bispecific molecules, especially bispecific tetravalent diabodies, that are composed of two, three, four or more than four polypeptide chains and possessing two epitope-binding sites each specific for an epitope of CD137 and two epitope-binding sites each specific for an epitope of a TA. Alternatively, such CD137×TA Binding Molecules will be bispecific molecules, especially bispecific trivalent binding molecules composed of three or more polypeptide chains and possessing one or two epitope-binding sites each specific for an epitope of CD137 and one or two epitope-binding sites each specific for an epitope of a TA.
    Type: Application
    Filed: February 15, 2024
    Publication date: July 11, 2024
    Inventors: Liqin LIU, Chia-Ying Kao LAM, Gundo DIEDRICH, Leslie S. JOHNSON, Paul A. MOORE, Ezio BONVINI
  • Publication number: 20240182559
    Abstract: The present invention relates to Tri-Specific Binding Molecules, which are multi-chain polypeptide molecules that possess three Binding Domains and are thus capable of mediating coordinated binding to three epitopes. The Binding Domains may be selected such that the Tri-Specific Binding Molecules are capable of binding to any three different epitopes. Such epitopes may be epitopes of the same antigen or epitopes of two or three different antigens. In a preferred embodiment, one of such epitopes will be capable of binding to CD3, the second of such epitopes will be capable of binding to CD8, and the third of such epitopes will be capable of binding to an epitope of a Disease-Associated Antigen. The invention also provides a novel ROR1-binding antibody, as well as derivatives thereof and uses for such compositions.
    Type: Application
    Filed: October 11, 2023
    Publication date: June 6, 2024
    Inventors: Leslie S. JOHNSON, Ling HUANG, Gurunadh Reddy CHICHILI, Kalpana SHAH, Chia-Ying Kao LAM, Stephen James BURKE, Liqin LIU, Paul A. MOORE, Ezio BONVINI, Bhaswati BARAT
  • Patent number: 11942149
    Abstract: The present invention is directed to binding molecules that possess one or more epitope-binding sites specific for an epitope of CD137 and one or more epitope-binding sites specific for an epitope of a tumor antigen (“TA”) (e.g., a “CD137×TA Binding Molecule”). In one embodiment, such CD137×TA Binding Molecules will be bispecific molecules, especially bispecific tetravalent diabodies, that are composed of two, three, four or more than four polypeptide chains and possessing two epitope-binding sites each specific for an epitope of CD137 and two epitope-binding sites each specific for an epitope of a TA. Alternatively, such CD137×TA Binding Molecules will be bispecific molecules, especially bispecific trivalent binding molecules composed of three or more polypeptide chains and possessing one or two epitope-binding sites each specific for an epitope of CD137 and one or two epitope-binding sites each specific for an epitope of a TA.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: March 26, 2024
    Assignee: MACROGENICS, INC.
    Inventors: Liqin Liu, Chia-Ying Kao Lam, Gundo Diedrich, Leslie S. Johnson, Paul A. Moore, Ezio Bonvini
  • Publication number: 20230399399
    Abstract: CD19×CD3 bi-specific monovalent diabodies, and particularly, CD19×CD3 bi-specific monovalent Fc diabodies, are capable of simultaneous binding to CD19 and CD3, and are used in the treatment of hematologic malignancies.
    Type: Application
    Filed: March 20, 2023
    Publication date: December 14, 2023
    Applicant: MacroGenics, Inc.
    Inventors: Leslie S. Johnson, Ezio Bonvini, Chia-Ying Kao Lam, Paul A. Moore, Liqin Liu, Scott Koenig
  • Patent number: 11820818
    Abstract: The present invention relates to Tri-Specific Binding Molecules, which are multi-chain polypeptide molecules that possess three Binding Domains and are thus capable of mediating coordinated binding to three epitopes. The Binding Domains may be selected such that the Tri-Specific Binding Molecules are capable of binding to any three different epitopes. Such epitopes may be epitopes of the same antigen or epitopes of two or three different antigens. In a preferred embodiment, one of such epitopes will be capable of binding to CD3, the second of such epitopes will be capable of binding to CD8, and the third of such epitopes will be capable of binding to an epitope of a Disease-Associated Antigen. The invention also provides a novel ROR1-binding antibody, as well as derivatives thereof and uses for such compositions.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: November 21, 2023
    Assignee: MACROGENICS, INC.
    Inventors: Leslie S. Johnson, Ling Huang, Gurunadh Reddy Chichili, Kalpana Shah, Chia-Ying Kao Lam, Stephen James Burke, Liqin Liu, Paul A. Moore, Ezio Bonvini, Bhaswati Barat
  • Patent number: 11795226
    Abstract: The present invention is directed to molecules (e.g., an antibody, a diabody, an scFv, an antibody, a TandAb, etc.) capable of binding an epitope of human CD16 (a “CD16 Binding Molecule”). The present invention is further directed to CD 16 Binding Molecules that are capable of binding an epitope of human CD16 and one or more epitope(s) of a Disease Antigen (“DA”) (e.g., a “CD16×DA Binding Molecule”). The present invention is particularly directed to such CD16×DA Binding Molecules that are antibodies, or that comprise an Epitope Binding Domain thereof, or are diabodies (including DART® diabodies), bispecific antibodies, TandAbs, other multispecific binding molecules (e.g., trivalent TRIDENT™ molecules), etc. The invention particularly concerns CD16×DA Binding Molecules that are capable of binding a Disease Antigen that is a Cancer Antigen or a Pathogen-Associated Antigen in addition to being able to bind CD 16.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: October 24, 2023
    Assignee: MacroGenics, Inc.
    Inventors: Gundo Diedrich, Liqin Liu, Hua Watson Li, Leslie S. Johnson
  • Publication number: 20230167178
    Abstract: The present invention relates to bispecific molecules that are capable of localizing an immune effector cell that expresses an activating receptor to a virally infected cell, so as to thereby facilitate the killing of the virally infected cell. In a preferred embodiment, such localization is accomplished using bispecific molecules that are immunoreactive with an activating receptor of an immune effector cell and to an antigen expressed by a cell infected with a virus wherein the antigen is detectably present on the cell infected with the virus at a level that is greater than the level at which the antigen is detected on the virus by the bispecific molecules, and to the use of such bispecific molecules in the treatment of latent viral infections.
    Type: Application
    Filed: July 14, 2022
    Publication date: June 1, 2023
    Applicants: MacroGenics, Inc., Duke University
    Inventors: Scott Koenig, Leslie S. Johnson, Chia-Ying Kao Lam, Liqin Liu, Jeffrey Lee Nordstrom, Barton F. Haynes, Guido Ferrari
  • Patent number: 11639386
    Abstract: CD19×CD3 bi-specific monovalent diabodies, and particularly, CD19×CD3 bi-specific monovalent Fc diabodies, are capable of simultaneous binding to CD19 and CD3, and are used in the treatment of hematologic malignancies.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: May 2, 2023
    Assignee: MacroGenics, Inc.
    Inventors: Leslie S. Johnson, Ezio Bonvini, Chia-Ying Kao Lam, Paul A. Moore, Liqin Liu, Scott Koenig
  • Publication number: 20230108562
    Abstract: Provided herein are prodrugs and methods of making and using thereof for stimulating the immune system, or treating cancer, autoimmune or an infectious disease.
    Type: Application
    Filed: January 11, 2021
    Publication date: April 6, 2023
    Applicant: ASKGENE PHARMA, INC.
    Inventors: Yuefeng LU, Chunxiao YU, Jian-Feng LU, Liqin LIU
  • Publication number: 20220406376
    Abstract: The present invention is directed to binding molecules that possess one or more epitope-binding sites specific for an epitope of CD137 and one or more epitope-binding sites specific for an epitope of a tumor antigen (“TA”) (e.g., a “CD137×TA Binding Molecule”). In one embodiment, such CD137×TA Binding Molecules will be bispecific molecules, especially bispecific tetravalent diabodies, that are composed of two, three, four or more than four polypeptide chains and possessing two epitope-binding sites each specific for an epitope of CD137 and two epitope-binding sites each specific for an epitope of a TA. Alternatively, such CD137×TA Binding Molecules will be bispecific molecules, especially bispecific trivalent binding molecules composed of three or more polypeptide chains and possessing one or two epitope-binding sites each specific for an epitope of CD137 and one or two epitope-binding sites each specific for an epitope of a TA.
    Type: Application
    Filed: August 8, 2022
    Publication date: December 22, 2022
    Inventors: Liqin LIU, Chia-Ying Kao Lam, Gundo Diedrich, Leslie S. Johnson, Paul A. Moore, Ezio Bonvini
  • Patent number: 11459394
    Abstract: The present invention is directed to binding molecules that possess one or more epitope-binding sites specific for an epitope of CD137 and one or more epitope-binding sites specific for an epitope of a tumor antigen (“TA”) (e.g., a “CD137×TA Binding Molecule”). In one embodiment, such CD137×TA Binding Molecules will be bispecific molecules, especially bispecific tetravalent diabodies, that are composed of two, three, four or more than four polypeptide chains and possessing two epitope-binding sites each specific for an epitope of CD137 and two epitope-binding sites each specific for an epitope of a TA. Alternatively, such CD137×TA Binding Molecules will be bispecific molecules, especially bispecific trivalent binding molecules composed of three or more polypeptide chains and possessing one or two epitope-binding sites each specific for an epitope of CD137 and one or two epitope-binding sites each specific for an epitope of a TA.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: October 4, 2022
    Assignee: MACROGENICS, INC.
    Inventors: Liqin Liu, Chia-Ying Kao Lam, Gundo Diedrich, Leslie S. Johnson, Paul A. Moore, Ezio Bonvini
  • Publication number: 20220306714
    Abstract: The present disclosure provides novel isolated IL-2 fusion molecules that preferentially activate regulatory T cells (Treg) in vitro and in vivo. Further included are methods of making and using said novel fusion molecules to treat inflammatory and autoimmune diseases.
    Type: Application
    Filed: August 12, 2020
    Publication date: September 29, 2022
    Applicant: ASKGENE PHARMA, INC.
    Inventors: Chen YAO, Chunxiao YU, Yuefeng LU, Liqin LIU, Kurt SHANEBECK, Shiwen ZHANG
  • Publication number: 20220289822
    Abstract: Provided herein are IL-21 prodrugs and methods of making and using thereof for stimulating the immune system, or treating cancer or an infectious disease.
    Type: Application
    Filed: August 21, 2020
    Publication date: September 15, 2022
    Applicant: ASKGENE PHARMA, INC.
    Inventors: Yuefeng LU, Chunxiao YU, Liqin LIU, Jian-Feng (Jeff) LU, Jui Chang (Ray) CHUANG
  • Patent number: 11421031
    Abstract: The present invention relates to bispecific molecules that are capable of localizing an immune effector cell that expresses an activating receptor to a virally infected cell, so as to thereby facilitate the killing of the virally infected cell. In a preferred embodiment, such localization is accomplished using bispecific molecules that are immunoreactive with an activating receptor of an immune effector cell and to an antigen expressed by a cell infected with a virus wherein the antigen is detectably present on the cell infected with the virus at a level that is greater than the level at which the antigen is detected on the virus by the bispecific molecules, and to the use of such bispecific molecules in the treatment of latent viral infections.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: August 23, 2022
    Assignees: MacroGenics, Inc., Duke University
    Inventors: Scott Koenig, Leslie S. Johnson, Chia-Ying Kao Lam, Liqin Liu, Jeffrey Lee Nordstrom, Barton F. Haynes, Guido Ferrari
  • Publication number: 20210246194
    Abstract: The present invention is directed to optimized HIV-1 gp41-Binding Molecules having reduced immunogenicity. More specifically, the invention relates to optimized gp41-Binding Molecules that comprise a gp41-binding Variable Light Chain (VL) Domain and/or a gp41-binding Variable Heavy Chain (VH) Domain that has/have been optimized to reduce the immunogenicity of such Domain(s) upon administration to a recipient subject. The invention particularly pertains to gp41-Binding Molecules that are multispecific gp41-Binding Molecules (including bispecific diabodies (including DART® diabodies), BiTE®s, bispecific antibodies, trivalent binding molecules (including TRIDENT™ molecules), etc.) that comprise: (i) such optimized gp41-binding Variable Domain(s) and (ii) a domain capable of binding to an epitope of a molecule present on the surface of an effector cell.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 12, 2021
    Applicants: MacroGenics, Inc., Duke University
    Inventors: Chia-Ying Kao Lam, Gundo Diedrich, Jeffrey Lee Nordstrom, Liqin Liu, Leslie S. Johnson, Scott Koenig, Barton F. Haynes, Guido Ferrari