Patents by Inventor Dakun QIN

Dakun QIN 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).

  • Crystal form of orexin receptor antagonist compound, and preparation method and application thereof
    Patent number: 10912775
    Abstract: Disclosed are a preparation method of an orexin receptor antagonist compound 5-3. Crystalline forms I-IV of an orexin receptor antagonist compound 5-3 are provided. Also provided are processes of preparing crystalline forms of the orexin receptor antagonist compound 5-3, as well as methods of using the crystalline forms I-IV for treating an orexin-related disease.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: February 9, 2021
    Assignees: SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD., YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Songliang Wu, Zhi Luo, Yuan Chen, Yuhe Wang, Dakun Qin, Xiaolin Li, Zheng Wang, Weidong Li, Haiying He
  • Crystal form of orexin receptor antagonist compound, and preparation method and application thereof
    Patent number: 10898486
    Abstract: Disclosed is a preparation method of an orexin receptor antagonist compound 5-3. Crystalline forms I-IV of an orexin receptor antagonist compound 5-3 are provided. Also provided are processes of preparing crystalline forms of the orexin receptor antagonist compound 5-3, as well as methods of using the crystalline forms I-IV for treating an orexin-related disease.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: January 26, 2021
    Assignees: SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD., YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Songliang Wu, Zhi Luo, Yuan Chen, Yuhe Wang, Dakun Qin, Xiaolin Li, Zheng Wang, Weidong Li, Haiying He
  • Crystal form of orexin receptor antagonist compound, and preparation method and application thereof
    Patent number: 10874674
    Abstract: Disclosed is a preparation method of an orexin receptor antagonist compound 5-3. Crystalline forms I-IV of an orexin receptor antagonist compound 5-3 are provided. Also provided are processes of preparing crystalline forms of the orexin receptor antagonist compound 5-3, as well as methods of using the crystalline forms I-IV for treating an orexin-related disease.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: December 29, 2020
    Assignees: SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD., YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Songliang Wu, Zhi Luo, Yuan Chen, Yuhe Wang, Dakun Qin, Xiaolin Li, Zheng Wang, Weidong Li, Haiying He
  • CRYSTAL FORM OF OREXIN RECEPTOR ANTAGONIST COMPOUND, AND PREPARATION METHOD AND APPLICATION THEREOF
    Publication number: 20200261452
    Abstract: Disclosed are a preparation method of an orexin receptor antagonist compound 5-3. Crystalline forms I-IV of an orexin receptor antagonist compound 5-3 are provided. Also provided are processes of preparing crystalline forms of the orexin receptor antagonist compound 5-3, as well as methods of using the crystalline forms I-IV for treating an orexin-related disease.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 20, 2020
    Inventors: Songliang WU, Zhi LUO, Yuan CHEN, Yuhe WANG, Dakun QIN, Xiaolin LI, Zheng WANG, Weidong LI, Haiying HE
  • CRYSTAL FORM OF OREXIN RECEPTOR ANTAGONIST COMPOUND, AND PREPARATION METHOD AND APPLICATION THEREOF
    Publication number: 20200261453
    Abstract: Disclosed is a preparation method of an orexin receptor antagonist compound 5-3. Crystalline forms I-IV of an orexin receptor antagonist compound 5-3 are provided. Also provided are processes of preparing crystalline forms of the orexin receptor antagonist compound 5-3, as well as methods of using the crystalline forms I-IV for treating an orexin-related disease.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 20, 2020
    Inventors: Songliang WU, Zhi LUO, Yuan CHEN, Yuhe WANG, Dakun QIN, Xiaolin LI, Zheng WANG, Weidong LI, Haiying HE
  • CRYSTAL FORM OF OREXIN RECEPTOR ANTAGONIST COMPOUND, AND PREPARATION METHOD AND APPLICATION THEREOF
    Publication number: 20200253972
    Abstract: Disclosed is a preparation method of an orexin receptor antagonist compound 5-3. Crystalline forms I-IV of an orexin receptor antagonist compound 5-3 are provided. Also provided are processes of preparing crystalline forms of the orexin receptor antagonist compound 5-3, as well as methods of using the crystalline forms I-IV for treating an orexin-related disease.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 13, 2020
    Applicants: Shanghai Haiyan Pharmaceutical Technology Co., Ltd., Yangtze River Pharmaceutical Group Co., Ltd.
    Inventors: Songliang WU, Zhi LUO, Yuan CHEN, Yuhe WANG, Dakun QIN, Xiaolin LI, Zheng WANG, Weidong LI, Haiying HE
  • Crystal form of orexin receptor antagonist compound, and preparation method and application thereof
    Patent number: 10668066
    Abstract: Disclosed are a preparation method of an orexin receptor antagonist compound 5-3, Crystalline forms I-IV of an orexin receptor antagonist compound 5-3 are provided. Also provided are processes of the preparing the orexin receptor antagonist compound 5-3 and its crystalline forms, as well as methods of using the crystalline forms I-IV for treating an orexin-related disease.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: June 2, 2020
    Assignees: Shanghai Haiyan Pharmaceutical Technology Co., Ltd., Yangtze River Pharmaceutical Group Co., Ltd.
    Inventors: Songliang Wu, Zhi Luo, Yuan Chen, Yuhe Wang, Dakun Qin, Xiaolin Li, Zheng Wang, Weidong Li, Haiying He
  • Crystal form, preparation method and intermediate of dihydropyrido ring compound
    Patent number: 10253030
    Abstract: Disclosed in the present disclosure are a crystal form of a dihydropyrido ring compound, and preparation method and intermediate thereof.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: April 9, 2019
    Assignee: QILU PHARMACEUTICAL CO., LTD.
    Inventors: Haiying He, Kai Zhou, Xiaolin Li, Xiaofei Wang, Dakun Qin, Xingxing Wang, Feifei Yang, Zheng Wang, Zongbin Li
  • CRYSTAL FORM, PREPARATION METHOD AND INTERMEDIATE OF DIHYDROPYRIDO RING COMPOUND
    Publication number: 20180312512
    Abstract: Disclosed in the present disclosure are a crystal form of a dihydropyrido ring compound, and preparation method and intermediate thereof.
    Type: Application
    Filed: November 2, 2016
    Publication date: November 1, 2018
    Inventors: Haiying HE, Kai ZHOU, Xiaolin LI, Xiaofei WANG, Dakun QIN, Xingxing WANG, Feifei YANG, Zheng WANG, Zongbin LI
  • CRYSTAL FORM OF OREXIN RECEPTOR ANTAGONIST COMPOUND, AND PREPARATION METHOD AND APPLICATION THEREOF
    Publication number: 20180235965
    Abstract: Disclosed are a preparation method of an orexin receptor antagonist compound 5-3, Crystalline forms I-IV of an orexin receptor antagonist compound 5-3 are provided. Also provided are processes of the preparing the orexin receptor antagonist compound 5-3 and its crystalline forms, as well as methods of using the crystalline forms I-IV for treating an orexin-related disease.
    Type: Application
    Filed: August 11, 2016
    Publication date: August 23, 2018
    Inventors: Songliang WU, Zhi LUO, Yuan CHEN, Yuhe WANG, Dakun QIN, Xiaolin LI, Zheng WANG, Weidong LI, Haiying HE