Patents by Inventor Yongxin Zhao

Yongxin Zhao 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: 20240145953
    Abstract: Disclosed is a method of preparing an amino acid ester of maytansinol by reacting maytansinol with an N-carboxyanhydride of an amino acid (NCA) in the presence of a drying agent. Also disclosed is an improved method of preparing an amino acid ester of maytansinol in which a nucleophile is added to the reaction mixture after completion of the reaction between maytansinol and an N-carboxyanhydride of an amino acid.
    Type: Application
    Filed: September 5, 2023
    Publication date: May 2, 2024
    Inventors: Wayne C. Widdison, Robert Yongxin Zhao
  • Publication number: 20240092046
    Abstract: The present invention relates to a product forming method, a product, and a shoe. The product forming method comprises the following steps: (1) placing a film on a bottom mold, and fixing the film between the bottom mold and a middle frame; (2) placing an outer housing material on the film, and suctioning the film, so that the film is internally recessed in the direction of the bottom mold, and then performing first curing molding to obtain a molded outer housing; and (3) placing an inner liner material on the molded outer housing, performing second curing molding to obtain a molded inner liner, and demolding to obtain the product.
    Type: Application
    Filed: August 3, 2021
    Publication date: March 21, 2024
    Inventors: Wu CAI, Yongxin BAO, Wandong CAI, Yebao ZHAO, Xuejun ZHANG, Yu CHI
  • Publication number: 20240054640
    Abstract: Provided is a method for classification of diseases including receiving image data associated with an image at a first resolution. The image may be processed, for example by removing a background from the image, deconstructing the image into separate layers, and segmenting the image to define a plurality of single-cell images. A single-cell image may be processed, for example, by applying a filter to the single-cell image to decrease a resolution of the single-cell image as compared to the first resolution, to a second resolution. A label may be assigned to the single-cell image. A machine learning model is trained to predict a classification of the single-cell image based on inputting a plurality of single-cell images into the model. The trained machine learning model may be used to predict the outcome of a treatment. Systems and computer program products are also provided.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 15, 2024
    Inventors: Yongxin Zhao, Christopher Byungjun Ahn
  • Patent number: 11884009
    Abstract: The disclosure relates to a method or a platform for hydrogel-based 3D fabrication, wherein the hydrogel is patterned with a programmable femtosecond light sheet with a power density of 0.1 to 100 TW/cm2.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: January 30, 2024
    Assignees: The Chinese University of Hong Kong, Carnegie Mellon University
    Inventors: Shih-Chi Chen, Songyun Gu, Fei Han, Yongxin Zhao, Aleksandra Klimas
  • Patent number: 11873281
    Abstract: A conjugate of a potent cytotoxic agent with a cell-binding molecule having a structure represented by Formula (I), wherein T, L, m, n, , R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, and R13 are as defined herein, can be used for targeted treatment of cancer, autoimmune disease, and infectious disease.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: January 16, 2024
    Assignee: HANGZHOU DAC BIOTECH CO., LTD.
    Inventors: R. Yongxin Zhao, Yue Zhang, Yourang Ma
  • Patent number: 11834406
    Abstract: A conjugate of a potent cytotoxic agent with a cell-surface receptor binding molecule having a Formula (I), wherein T, L, m, n, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R1, R12, and R13 are defined herein, can be used for targeted treatment of cancer, autoimmune disease, and infectious disease.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: December 5, 2023
    Assignee: HANGZHOU DAC BIOTECH CO., LTD.
    Inventors: R. Yongxin Zhao, Yue Zhang, Yourang Ma
  • Patent number: 11802822
    Abstract: The invention provides a method for preparing an expanded biological specimen suitable for microscopic analysis. Expanding the biological sample can be achieved by anchoring biomolecules to a polymer network and swelling, or expanding, the polymer network, thereby moving the biomolecules apart as further described below. As the biomolecules are anchored to the polymer network isotropic expansion of the polymer network retains the spatial orientation of the biomolecules resulting in an expanded, or enlarged, biological specimen.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: October 31, 2023
    Assignee: Massachusetts Institute of Technology
    Inventors: Pablo Valdes Quevedo, Yongxin Zhao, Edward Stuart Boyden
  • Patent number: 11802872
    Abstract: The invention provides a method for preparing an expanded renal (kidney) tissue sample suitable for microscopic analysis. Expanding the kidney sample can be achieved by binding, e.g., anchoring, key biomolecules to a polymer network and swelling, or expanding, the polymer network, thereby moving the biomolecules apart as further described herein. As the biomolecules are anchored to the polymer network, isotropic expansion of the polymer network retains the spatial orientation of the biomolecules resulting in an expanded, or enlarged, kidney sample.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: October 31, 2023
    Assignees: Massachusetts Institute of Technology, Beth Israel Deaconess Medical Center, Inc.
    Inventors: Edward Stuart Boyden, Andrew Hanno Beck, Yongxin Zhao, Octavian Bucur
  • Publication number: 20230340004
    Abstract: A method for preparing high-purity granatin A: by means of a combination of low-temperature liquid phase chromatography and an isomerization conversion purification method, using pomegranate peel extract as a source material, granatin A of over 98% purity can be acquired, and can be used as a standard product for quality control of pomegranate peel, pomegranate flower, or other medicinal material with granatin A as the active ingredient.
    Type: Application
    Filed: March 24, 2021
    Publication date: October 26, 2023
    Applicant: XINJIANG TECHNICAL INSTITUTE OF PHYSICS & CHEMISTRY, CHINESE ACADEMY OF SCIENCES
    Inventors: Haji Akber AISA, Guangying SUN, Guliqire ADILI, Munire ABUDUAINI, Yongxin ZHAO
  • Patent number: 11779663
    Abstract: The present invention relates to novel linkers containing a 2,3-disubstituted succinic group, or 2-monosubstituted, or 2,3-disubstituted fumaric or maleic (trans (E)- or cis (Z)-butenedioic), or acetylenedicarboxyl group for conjugation of a cytotoxic agent, and/or one or more different functional molecules per linker to a cell-binding molecule, through bridge linking pairs of thiols on the cell-binding molecule specifically. The invention also relates to methods of making such linkers, and of using such linkers in making homogeneous conjugates, as well as of application of the conjugates in treatment of cancers, infections and autoimmune disorders.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: October 10, 2023
    Assignee: HANGZHOU DAC BIOTECH CO., LTD.
    Inventors: Robert Yongxin Zhao, Qingliang Yang, Yuanyuan Huang, Shun Gai, Linyao Zhao, Hangbo Ye, Huihui Guo, Qianqian Tong, Minjun Cao, Junxiang Jia, Chengyu Yang, Wenjun Li, Xiaomai Zhou, Hongsheng Xie, Chen Lin, Zhixiang Guo, Zhicang Ye
  • Patent number: 11767294
    Abstract: A conjugate of a potent cytotoxic agent with a cell-surface receptor binding molecule having a Formula (I), wherein T, L, m, n, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, and R13 are defined herein, can be used for targeted treatment of cancer, autoimmune disease, and infectious disease.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: September 26, 2023
    Assignee: HANGZHOU DAC BIOTECH CO., LTD.
    Inventors: R. Yongxin Zhao, Yue Zhang, Yourang Ma
  • Publication number: 20230165931
    Abstract: Described is a conjugation of a tubulysin analog compound to a cell-binding molecule with branched/side-chain linkers for having better delivery of the conjugate compound and targeted treatment of abnormal cells. Also described are a branched-linkage method of conjugation of a tubulysin analog molecule to a cell-binding ligand, as well as methods of using the conjugate in targeted treatment of cancer, infection and autoimmune disease.
    Type: Application
    Filed: January 19, 2023
    Publication date: June 1, 2023
    Applicant: Hangzhou DAC Biotech Co., Ltd.
    Inventors: Robert Yongxin ZHAO, Qingliang YANG, Yuanyuan HUANG, Linyao ZHAO, Shun GAI, Hangbo YE, Jun LEI, Yifang XU, Mingjun CAO, Huihui GUO, Junxiang JIA, Qianqian TONG, Wenjun LI, Xiaomai ZHOU, Hongsheng XIE, Lu BAI, Xiang CAI, Xiaotao ZHUO, Xiuzheng ZHANG, Jun ZHENG
  • Publication number: 20230165930
    Abstract: Described is a conjugation of a tubulysin analog compound to a cell-binding molecule with branched/side-chain linkers for having better delivery of the conjugate compound and targeted treatment of abnormal cells. Also described are a branched-linkage method of conjugation of a tubulysin analog molecule to a cell-binding ligand, as well as methods of using the conjugate in targeted treatment of cancer, infection and autoimmune disease.
    Type: Application
    Filed: January 19, 2023
    Publication date: June 1, 2023
    Applicant: Hangzhou DAC Biotech Co., Ltd.
    Inventors: Robert Yongxin ZHAO, Qingliang YANG, Yuanyuan HUANG, Linyao ZHAO, Shun GAI, Hangbo YE, Jun LEI, Yifang XU, Mingjun CAO, Huihui GUO, Junxiang JIA, Qianqian TONG, Wenjun LI, Xiaomai ZHOU, Hongsheng XIE, Lu BAI, Xiang CAI, Xiaotao ZHUO, Xiuzheng ZHANG, Jun ZHENG
  • Publication number: 20230149502
    Abstract: Described is a conjugation of a tubulysin analog compound to a cell-binding molecule with branched/side-chain linkers for having better delivery of the conjugate compound and targeted treatment of abnormal cells. Also described are a branched-linkage method of conjugation of a tubulysin analog molecule to a cell-binding ligand, as well as methods of using the conjugate in targeted treatment of cancer, infection and autoimmune disease.
    Type: Application
    Filed: January 19, 2023
    Publication date: May 18, 2023
    Applicant: Hangzhou DAC Biotech Co., Ltd.
    Inventors: Robert Yongxin ZHAO, Qingliang YANG, Yuanyuan HUANG, Linyao ZHAO, Shun GAI, Hangbo YE, Jun LEI, Yifang XU, Mingjun CAO, Huihui GUO, Junxiang JIA, Qianqian TONG, Wenjun LI, Xiaomai ZHOU, Hongsheng XIE, Lu BAI, Xiang CAI, Xiaotao ZHUO, Xiuzheng ZHANG, Jun ZHENG
  • Publication number: 20230115871
    Abstract: The present invention relates to the conjugation of cytotoxic drug to a cell-binding molecule with a side-chain linker. It provides side-chain linkage methods of making a conjugate of a cytotoxic molecule to a cell-binding ligand, as well as methods of using the conjugate in targeted treatment of cancer, infection and immunological disorders.
    Type: Application
    Filed: June 24, 2019
    Publication date: April 13, 2023
    Applicant: Hangzhou DAC Biotech Co., Ltd
    Inventors: Robert Yongxin ZHAO, Qingliang YANG, Linyao ZHAO, Yuanyuan HUANG, Hangbo YE, Shun GAI, Junxiang JIA, Lu BAI, Wenjun LI, Zhixiang GUO, Chen LIN, Jun ZHENG, Huihui GUO, Minjun CAO, Xiangfei KONG, Yong DU, Yifang XU, Xiaomai ZHOU, Hongsheng XIE, Xiuzhen ZHANG, Miaomiao CHEN, Xiaolei LIU, Xiang CAI, Binbin CHEN, Yanlei YANG, Lingli ZHANG
  • Publication number: 20230057350
    Abstract: Provided herein is the conjugation of an amanita toxin compound to a cell-binding molecule with branched linkers for having better targeted treatment of abnormal cells. It also relates to a branched-linkage method of conjugation of an amanita molecule to a cell-binding ligand, as well as methods of using the conjugate in targets treatment of cancer, infection and autoimmune disease.
    Type: Application
    Filed: January 31, 2019
    Publication date: February 23, 2023
    Applicant: Hangzhou DAC Biotech Co., Ltd.
    Inventors: Robert Yongxin ZHAO, Qingliang YANG, Jun LEI, Yuanyuan HUANG, Linyao ZHAO, Hangbo YE, Shun GAI, Mingjun CAO, Qianqian TONG, Lu BAI, Zhixiang GUO, Chengyu YANG, Xiaomai ZHOU, Hongsheng XIE, Yifang XU, Huihui GUO, Junxiang JIA, Jun ZHENG, Cheng LIN, Xiaotao ZHUO, Wenjun LI, Yong DU, Xiangfei KONG, Binbin CHEN, Yanlei YANG, Yanhong TONG, Xiaoxiao CHEN, Yanhua LI, Xiuzheng ZHANG, Juan LAI
  • Publication number: 20230010108
    Abstract: The present invention relates to a conjugate of a cytotoxic drug/molecule to a cell-binding molecule with a bis-linker (a dual-linker) containing a 2,3-diaminosuccinyl group. It also relates to preparation of the conjugate of a cytotoxic drug/molecule to a cell-binding molecule with the bis-linker, particularly when the drug having functional groups of amino, hydroxyl, diamino, amino-hydroxyl, dihydroxyl, carboxyl, hydrazine, aldehyde and thiol for conjugation with the bis-linker in a specific manner, as well as the therapeutic use of the conjugates.
    Type: Application
    Filed: October 12, 2018
    Publication date: January 12, 2023
    Applicant: Hangzhou DAC Biotech Co., Ltd.
    Inventors: Robert Yongxin ZHAO, Qingliang YANG, Yuanyuan HUANG, Linyao ZHAO, Hangbo YE, Xiaotao ZHUO, Chengyu YANG, Jun LEI, Yifang XU, Huihui GUO, Wenjun LI, Shun GAI, Lu BAI, Zhixiang GUO, Junxiang JIA, Jun ZHENG, Xiaomai ZHOU, Hongsheng XIE, Qianqian TONG, Mingjun CHAO, Yanhong TONG, Zhicang YE, Chen LIN, Yanlei YANG, Binbin CHEN
  • Publication number: 20230001001
    Abstract: A conjugation of a cytotoxic drug to a cell-binding molecule with a bis-linker (dual-linker) as shown in Formula (I). Bis-linkage methods of making a conjugate of a cytotoxic drug/molecule to a cell-binding agent in a specific manner are also described, as well as application of the conjugates for the treatment of a cancer, or an autoimmune disease, or an infectious disease. wherein “” is an optional bond; X, Y, Z1, and Z2 are a functional group; m1 and n are a integer; L1 and L2 are a linker.
    Type: Application
    Filed: July 30, 2021
    Publication date: January 5, 2023
    Applicant: Hangzhou DAC Biotech Co., Ltd.
    Inventors: Robert Yongxin ZHAO, Yuanyuan HUANG, Qingliang YANG, Shun GAI, Hangbo YE, Linyao ZHAO, Chengyu YANG, Yifang XU, Huihui GUO, Minjun CHAO, Qianqian TONG, Wenjun LI, Xiang CAI, Xiaomai ZHOU, Hongsheng XIE, Junxiang JIA, Haifeng ZHU, Zhixiang GUO, Shuihong GAO, Chunyan WANG, Chen LIN, Yanlei YANG, Zhicang YE, Jie PENG, Jun XU, Xiaotao ZUO, Qingyu SU
  • Publication number: 20220378951
    Abstract: The present invention relates to novel linkers containing a 2,3-disubstituted succinic group, or 2-monosubstituted, or 2,3-disubstituted fumaric or maleic (trans (E)- or cis (Z)-butenedioic), or acetylenedicarboxyl group for conjugation of a cytotoxic agent, and/or one or more different functional molecules per linker to a cell-binding molecule, through bridge linking pairs of thiols on the cell-binding molecule specifically. The invention also relates to methods of making such linkers, and of using such linkers in making homogeneous conjugates, as well as of application of the conjugates in treatment of cancers, infections and autoimmune disorders.
    Type: Application
    Filed: June 23, 2021
    Publication date: December 1, 2022
    Applicant: Hangzhou DAC Biotech Co., Ltd.
    Inventors: Robert Yongxin ZHAO, Qingliang YANG, Yuanyuan HUANG, Shun GAI, Linyao ZHAO, Hangbo YE, Huihui GUO, Qianqian TONG, Minjun CAO, Junxiang JIA, Chengyu YANG, Wenjun LI, Xiaomai ZHOU, Hongsheng XIE, Chen LIN, Zhixiang GUO, Zhicang YE
  • Patent number: 11505617
    Abstract: The invention relates to novel benzodiazepine derivatives with antiproliferative activity and more specifically to novel benzodiazepines of formula (I) and (II), in which the diazepine ring (B) is fused with a heterocyclic ring (CD), wherein the heterocyclic ring is bicyclic or a compound of formula (III), in which the diazepine ring (B) is fused with a heterocyclic ring (C), wherein the heterocyclic ring is monocyclic. The invention provides cytotoxic dimers of these compounds. The invention also provides conjugates of the monomers and the dimers. The invention further provides compositions and methods useful for inhibiting abnormal cell growth or treating a proliferative disorder in a mammal using the compounds or conjugates of the invention. The invention further relates to methods of using the compounds or conjugates for in vitro, in situ, and in vivo diagnosis or treatment of mammalian cells, or associated pathological conditions.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: November 22, 2022
    Assignee: IMMUNOGEN, INC.
    Inventors: Wei Li, Nathan Elliott Fishkin, Robert Yongxin Zhao, Michael Louis Miller, Ravi V. J. Chari