Patents by Inventor Xiaotao ZHUO
Xiaotao ZHUO 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).
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Patent number: 11998584Abstract: The present invention relates to the 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. It also relates to 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: GrantFiled: December 31, 2017Date of Patent: June 4, 2024Assignee: 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
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Publication number: 20230165931Abstract: 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: ApplicationFiled: January 19, 2023Publication date: June 1, 2023Applicant: 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
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Publication number: 20230165930Abstract: 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: ApplicationFiled: January 19, 2023Publication date: June 1, 2023Applicant: 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
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Publication number: 20230149502Abstract: 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: ApplicationFiled: January 19, 2023Publication date: May 18, 2023Applicant: 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
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Publication number: 20230057350Abstract: 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: ApplicationFiled: January 31, 2019Publication date: February 23, 2023Applicant: 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
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Publication number: 20230010108Abstract: 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: ApplicationFiled: October 12, 2018Publication date: January 12, 2023Applicant: 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
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Publication number: 20210169896Abstract: The present invention relates to novel cross-linked cytotoxic agents, pyrrolobenzodiazepine dimer (PBD) derivatives, and their conjugates to a cell-binding molecule, a method for preparation of the conjugates and the therapeutic use of the conjugates.Type: ApplicationFiled: July 5, 2018Publication date: June 10, 2021Inventors: Robert Yongxin ZHAO, Xiaotao ZHUO, Qingliang YANG, Linyao ZHAO, Yuanyuan HUANG, Hangbo YE, Chengyu YANG, Jun LEI, Shun GAI, Huihui GUO, Junxiang JIA, Lu BAI, Hongsheng XIE, Xiaomai ZHOU, Zhixiang GUO, Wenjun LI, Mingjun CAO, Jun ZHENG, Zhicang YE, Yanlei YANG
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Publication number: 20200276261Abstract: The present invention relates to the 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. It also relates to 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: ApplicationFiled: December 31, 2017Publication date: September 3, 2020Applicant: 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
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Patent number: 10646585Abstract: Hydrophilic linkers are useful for linking drugs to cell-binding ligands in ligand-drug conjugates, such as antibody-drug conjugates. The ligand-drug conjugate includes a cell-binding ligand capable of binding to a particular cell population, and a drug connected to the ligand by a hydrophilic linker. The hydrophilic linker includes one or more hydrophilic groups that render the linker hydrophilic. The hydrophilic linker may also include functional groups at the two termini for coupling to the drug and the cell-binding ligand respectively.Type: GrantFiled: December 19, 2018Date of Patent: May 12, 2020Assignee: HANGZHOU DAC BIOTECH CO., LTD.Inventors: Sanxing Sun, Robert Yongxin Zhao, Xing Li, Huihui Guo, Junxiang Jia, Hongsheng Xie, Xiaomai Zhou, Yuanyuan Huang, Qingliang Yang, Xiaotao Zhuo, Hangbo Ye, Shun Gai, Lan Qu, Wenjun Li, Chen Lin
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Patent number: 10456479Abstract: Hydrophilic linkers are useful for linking drugs to cell-binding ligands in ligand-drug conjugates, such as antibody-drug conjugates. The ligand-drug conjugate includes a cell-binding ligand capable of binding to a particular cell population, and a drug connected to the ligand by a hydrophilic linker. The hydrophilic linker includes one or more hydrophilic groups that render the linker hydrophilic. The hydrophilic linker may also include functional groups at the two termini for coupling to the drug and the cell-binding ligand respectively.Type: GrantFiled: March 19, 2015Date of Patent: October 29, 2019Assignee: HANGZHOU DAC BIOTECH CO., LTD.Inventors: Sanxing Sun, Robert Yongxin Zhao, Xing Li, Huihui Guo, Junxiang Jia, Hongsheng Xie, Xiaomai Zhou, Yuanyuan Huang, Qingliang Yang, Xiaotao Zhuo, Hangbo Ye, Shun Gai, Lan Qu, Wenjun Li, Chen Lin
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Publication number: 20190125894Abstract: Hydrophilic linkers are useful for linking drugs to cell-binding ligands in ligand-drug conjugates, such as antibody-drug conjugates. The ligand-drug conjugate includes a cell-binding ligand capable of binding to a particular cell population, and a drug connected to the ligand by a hydrophilic linker. The hydrophilic linker includes one or more hydrophilic groups that render the linker hydrophilic. The hydrophilic linker may also include functional groups at the two termini for coupling to the drug and the cell-binding ligand respectively.Type: ApplicationFiled: December 19, 2018Publication date: May 2, 2019Applicant: HANGZHOU DAC BIOTECH CO., LTD.Inventors: Sanxing SUN, Robert Yongxin ZHAO, Xing LI, Huihui GUO, Junxiang JIA, Hongsheng XIE, Xiaomai ZHOU, Yuanyuan HUANG, Qingliang YANG, Xiaotao ZHUO, Hangbo YE, Shun GAI, Lan QU, Wenjun LI, Chen LIN
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Publication number: 20180110876Abstract: Hydrophilic linkers are useful for linking drugs to cell-binding ligands in ligand-drug conjugates, such as antibody-drug conjugates. The ligand-drug conjugate includes a cell-binding ligand capable of binding to a particular cell population, and a drug connected to the ligand by a hydrophilic linker. The hydrophilic linker includes one or more hydrophilic groups that render the linker hydrophilic. The hydrophilic linker may also include functional groups at the two termini for coupling to the drug and the cell-binding ligand respectively.Type: ApplicationFiled: March 19, 2015Publication date: April 26, 2018Applicant: HANGZHOU DAC BIOTECH CO., LTD.Inventors: Sanxing SUN, Robert Yongxin ZHAO, Xing LI, Huihui GUO, Junxiang JIA, Hongsheng XIE, Xiaomai ZHOU, Yuanyuan HUANG, Qingliang YANG, Xiaotao ZHUO, Hangbo YE, Shun GAI, Lan QU, Wenjun LI, Chen LIN