Patents by Inventor YUQUAN LI

YUQUAN 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: 20240108177
    Abstract: A material cleaning method includes controlling a transportation device of a cooking appliance to move in an accommodation cavity of the cooking appliance, to make a transportation port of the transportation device move in material in the accommodation cavity, and controlling the transportation device to blow air through the transportation port to clean the material in the accommodation cavity.
    Type: Application
    Filed: December 24, 2021
    Publication date: April 4, 2024
    Inventors: Yuquan WU, Baomin YANG, Tianshui WANG, Houchao FU, Jiakong LI, Liangliu WU
  • Publication number: 20230174608
    Abstract: The present invention provides a polypeptide derivative, or a modified derivative or salt thereof, and use of the polypeptide derivative, or the modified derivative or salt thereof. The polypeptide derivative, or the modified derivative or salt thereof comprises a polypeptide having the sequence of the following general formula I: general formula I: HX2QGTFTSDX10SKYLX15EX17X18AX20X21FX23AWLEX28X29X30, wherein the definitions of X2, X10, X15, X17, X18, X20, X21, X23, X28, X29, and X30 are consistent with those in the claims and description. The polypeptide derivatives of the present invention are dual agonists for GC/GLP-1 receptor, have a synergic effect on energy metabolism, can effectively reduce weight and improve a body fat level while reducing blood glucose, and have a potential application value in the field of treatment of metabolic diseases such as diabetes and obesity.
    Type: Application
    Filed: May 8, 2021
    Publication date: June 8, 2023
    Inventors: Yingmei Han, Wei Liu, Bingni Liu, Weiling Kong, Naxia Zhao, Guangping Xia, Qian Shang, Jing Jin, Xiaohua Kong, Yuquan Li, Songhui Wang
  • Patent number: 11466025
    Abstract: The present invention provides a compound having a structure of formula (I), a preparation method and use thereof, and a pharmaceutical composition containing the compound, wherein R is methyl, ethyl, propyl, vinyl or propenyl. The present invention also provides a crystalline form of the compound, a preparation method and use of the crystalline form, and a pharmaceutical composition comprising the crystalline form. The compounds having the structure of formula (I) of the present invention are present in a solid form, which not only can solve the problem of clopidogrel resistance, but also can solve the problem of severe hemorrhagic side effect and poor safety of some drugs, as well as the problem of poor stability of existing compounds. It can be developed into an ADP receptor antagonist antiplatelet agent with clear therapeutic effect, no resistance and better stability.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: October 11, 2022
    Assignee: TIANJIN INSTITUTE OF PHARMACEUTICAL RESEARCH CO., LTD.
    Inventors: Changjiang Huang, Shijun Zhang, Lingjun Li, Lei Liu, Yuquan Li, Jing Yuan, Hui Yan, Songhui Wang, Xuemin Zheng, Qunchao Wei, Xuyuan Liu, Wei Wei, Weiren Xu, Lida Tang, Meixiang Zou
  • Publication number: 20220319723
    Abstract: A nuclear reactor includes a reactor container, a reactor core, a control drum assembly, a hot channel, a heat exchanger and a main pump. The reactor container contains a coolant; the reactor core is arranged at a lower middle part of the reactor container; the control drum assembly is arranged on an outer periphery of the reactor core, and includes control drums arranged at intervals along a peripheral direction of the reactor core; the hot channel is arranged in the reactor container and located above the reactor core. The hot channel has a bottom hermetically connected to the control drum assembly and a top hermetically connected to an inner top surface of the reactor container. The hot channel has a hot pool passage for the coolant to pass through. The heat exchanger is arranged in the reactor container and located on an outer periphery of the hot channel.
    Type: Application
    Filed: December 31, 2021
    Publication date: October 6, 2022
    Inventors: Linsen Li, Gang Zheng, Chunyuan Liu, Mian Xing, Peidong Sun, Yeoh Eing Yee, Zhaocan Meng, Xiaosong Chen, Zhen Luo, Yilin Zhang, Shuming Zhang, Xiaosheng Li, Zhihui Li, Xiaotao Liao, Canhui Sun, Yaodong Chen, Yuquan Li
  • Patent number: 11149013
    Abstract: The present invention provides a crystal form of urate transporter 1 inhibitor and a preparation method and use thereof. The crystal form is characterized by a stable state of appearance and a capability of further improving the purity and storage stability of the compound, etc., and suitable as a pharmaceutical raw material.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: October 19, 2021
    Assignee: TIANJIN INSTITUTE OF PHARMACEUTICAL RESEARCH CO., LTD.
    Inventors: Guilong Zhao, Changying Liu, Huihui Chen, Yuquan Li, Haizhi Zhang, Xuyuan Liu, Yuqiang Liu, Yafei Xie, Jingwei Wu, Wei Liu, Weiren Xu, Lida Tang, Meixiang Zou
  • Patent number: 11091448
    Abstract: Provided is a method for preparing a URAT1 inhibitor, 2-((5-bromo-4-((4-bromonaphthalen-1-yl)methyl)-4H-1,2,4-triazol-3-yl)thio) acetic acid represented by the following formula ZXS-BR, the reaction equation of which being shown as follows. Compared with the prior art, the preparation method provided by the present application is of low cost, ease of handling, ease of quality control, and applicable to industrialization.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: August 17, 2021
    Assignee: TIANJIN INSTITUTE OF PHARMACEUTICAL RESEARCH CO., LTD.
    Inventors: Guilong Zhao, Changying Liu, Yuqiang Liu, Huihui Chen, Yuquan Li, Haizhi Zhang, Yafei Xie, Jingwei Wu, Wei Liu, Weiren Xu, Meixiang Zou, Lida Tang
  • Publication number: 20200369628
    Abstract: The present invention provides a crystal form of urate transporter 1 inhibitor and a preparation method and use thereof. The crystal form is characterized by a stable state of appearance and a capability of further improving the purity and storage stability of the compound, etc., and suitable as a pharmaceutical raw material.
    Type: Application
    Filed: January 18, 2019
    Publication date: November 26, 2020
    Applicant: Tianjin Institute of Pharmaceutical Research Co., Ltd.
    Inventors: Guilong Zhao, Changying Liu, Huihui Chen, Yuquan Li, Haizhi Zhang, Xuyuan Liu, Yuqiang Liu, Yafei Xie, Jingwei Wu, Wei Liu, Weiren Xu, Lida Tang, Meixiang Zou
  • Publication number: 20200361952
    Abstract: The present invention provides a compound having a structure of formula (I), a preparation method and use thereof, and a pharmaceutical composition containing the compound, wherein R is methyl, ethyl, propyl, vinyl or propenyl. The present invention also provides a crystalline form of the compound, a preparation method and use of the crystalline form, and a pharmaceutical composition comprising the crystalline form. The compounds having the structure of formula (I) of the present invention are present in a solid form, which not only can solve the problem of clopidogrel resistance, but also can solve the problem of severe hemorrhagic side effect and poor safety of some drugs, as well as the problem of poor stability of existing compounds. It can be developed into an ADP receptor antagonist antiplatelet agent with clear therapeutic effect, no resistance and better stability.
    Type: Application
    Filed: August 22, 2018
    Publication date: November 19, 2020
    Applicant: Tianjin Institute of Pharmaceutical Research Co., Ltd.
    Inventors: Changjiang Huang, Shijun Zhang, Lingjun Li, Lei Liu, Yuquan Li, Jing Yuan, Hui Yan, Songhui Wang, Xuemin Zheng, Qunchao Wei, Xuyuan Liu, Wei Wei, Weiren Xu, Lida Tang, Meixiang Zou
  • Patent number: 10584104
    Abstract: The present invention relates to the pharmaceutical field for the treatment of hyperuricemia and gout. In particular, the present invention relates to a carboxylic acid urate transporter 1 (URAT1) inhibitor of a general formula (I) containing a diarylmethane structure and a preparation method thereof, and a pharmaceutical composition containing the same and a use thereof in the preparation of medicaments for treating hyperuricemia and gout, wherein R1 is selected from H, C1-C10 alkyl, C3-C10 cycloalkyl, F, Cl, Br, I, CN, NO2, SR4 or OR4; R2 is selected from H, F, Cl, Br or I; R3 is selected from H or C1-C4 alkyl; X is selected from S or CH2; wherein R4 is selected from C1-C10 alkyl.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: March 10, 2020
    Assignee: TIANJIN INSTITUTE OF PHARMACEUTICAL RESEARCH CO., LTD.
    Inventors: Guilong Zhao, Wei Liu, Qian Shang, Zhixing Zhou, Yuli Wang, Yuquan Li, Haizhi Zhang, Chuan Li, Changying Liu, Yuqiang Liu, Yafei Xie, Jingwei Wu, Huihui Chen, Weiren Xu, Lida Tang
  • Publication number: 20190233381
    Abstract: Provided is a method for preparing a URAT1 inhibitor, 2-((5-bromo-4-((4-bromonaphthalen-1-yl)methyl)-4H-1,2,4-triazol-3-yl)thio) acetic acid represented by the following formula ZXS-BR, the reaction equation of which being shown as follows. Compared with the prior art, the preparation method provided by the present application is of low cost, ease of handling, ease of quality control, and applicable to industrialization.
    Type: Application
    Filed: June 26, 2017
    Publication date: August 1, 2019
    Inventors: Guilong Zhao, Changying Liu, Yuqiang Liu, Huihui Chen, Yuquan Li, Haizhi Zhang, Yafei Xie, Jingwei Wu, Wei Liu, Weiren Xu, Meixiang Zou, Lida Tang
  • Publication number: 20180134670
    Abstract: The present invention relates to the pharmaceutical field for the treatment of hyperuricemia and gout. In particular, the present invention relates to a carboxylic acid urate transporter 1 (URAT1) inhibitor of a general formula (I) containing a diarylmethane structure and a preparation method thereof, and a pharmaceutical composition containing the same and a use thereof in the preparation of medicaments for treating hyperuricemia and gout, wherein R1 is selected from H, C1-C10 alkyl, C3-C10 cycloalkyl, F, Cl, Br, I, CN, NO2, SR4 or OR4; R2 is selected from H, F, Cl, Br or I; R3 is selected from H or C1-C4 alkyl; X is selected from S or CH2; wherein R4 is selected from C1-C10 alkyl.
    Type: Application
    Filed: April 28, 2016
    Publication date: May 17, 2018
    Inventors: GUILONG ZHAO, WEI LIU, QIAN SHANG, ZHIXING ZHOU, YULI WANG, YUQUAN LI, HAIZHI ZHANG, CHUAN LI, CHANGYING LIU, YUQIANG LIU, YAFEI XIE, JINGWEI WU, HUIHUI CHEN, WEIREN XU, LIDA TANG