Patents by Inventor Dongcheng Dai

Dongcheng Dai 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: 20240059703
    Abstract: Provided are compounds of Formula (I) having activity as inhibitors of G12C mutant KRAS protein, pharmaceutical compositions comprising the compounds, and uses and methods of treating certain disorders, such as cancer, including but not limited to lung, pancreatic and colorectal cancers.
    Type: Application
    Filed: October 19, 2021
    Publication date: February 22, 2024
    Inventors: BRIAN ALAN LANMAN, ABHISEK BANERJEE, MARGARET CHU-MOYER, DONGCHENG DAI, JOSEPHINE ESHON, DAVID HUANG, MATTHEW R. KALLER, HEEJUN LEE, PATRICIA LOPEZ, VU VAN MA, FRANCESCO MANONI, JOSE M MEDINA, ALEXANDER J. PICKRELL, JOHN C. STELLWAGEN, ZHEN SUN, NURIA A. TAMAYO, WENHAN ZHANG, KAI ZHU
  • Publication number: 20230406860
    Abstract: The present disclosure provides compounds of Formula (I) having activity as inhibitors of G12C mutant KRAS protein. This disclosure also provides pharmaceutical compositions comprising the compounds, uses and methods of treating certain disorders, such as cancer, including but not limited to lung, pancreatic and colorectal cancers.
    Type: Application
    Filed: October 26, 2021
    Publication date: December 21, 2023
    Inventors: BRIAN ALAN LANMAN, ABHISEK BANERJEE, MARGARET CHU-MOYER, DONGCHENG DAI, MATTHEW R. KALLER, PATRICIA LOPEZ, VU VAN MA, FRANCESCO MANONI, JOSE M. MEDINA, ALEXANDER J. PICKRELL, NURIA A. TAMAYO, KAI ZHU
  • Patent number: 11161803
    Abstract: The present disclosure belongs to the field of chemical synthesis, and in particular relates to an ammonium carboxylate compound, a crystalline form and an amorphous form, and a preparation method thereof. The present disclosure prepares the compound and the crystalline form I and its single crystal, amorphous form and crystalline form II thereof. The compound, the crystalline forms, the single crystal and the amorphous form can stably exist and exhibit good solid forms, suitable for medicine-making. Furthermore, these products possess high purity and less single impurity. Moreover, the preparation methods of the present disclosure are easy to implement due to the simple processes with mild reaction conditions, and could produce products of high yield and high purity without complex purification steps. Furthermore, the preparation methods may facilitate safety, environmental protection, and industrial production.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 2, 2021
    Assignee: WUHAN LL SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Bo Zhang, Xiaohua Ding, Dongcheng Dai, Sijun Lei, Xueming Liu, Panpan Duan, Yongkai Chen, Chaodong Wang
  • Patent number: 10662155
    Abstract: Disclosed are methods for the preparation of Tecovirimat for the treatment or prophylaxis of viral infections and diseases associated therewith, particularly those viral infections and associated diseases caused by the orthopoxvirus.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: May 26, 2020
    Assignee: Siga Technologies Inc.
    Inventor: Dongcheng Dai
  • Publication number: 20200055812
    Abstract: The present disclosure belongs to the field of chemical synthesis, and in particular relates to an ammonium carboxylate compound, a crystalline form and an amorphous form, and a preparation method thereof. The present disclosure prepares the compound and the crystalline form I and its single crystal, amorphous form and crystalline form II thereof. The compound, the crystalline forms, the single crystal and the amorphous form can stably exist and exhibit good solid forms, suitable for medicine-making. Furthermore, these products possess high purity and less single impurity. Moreover, the preparation methods of the present disclosure are easy to implement due to the simple processes with mild reaction conditions, and could produce products of high yield and high purity without complex purification steps. Furthermore, the preparation methods may facilitate safety, environmental protection, and industrial production.
    Type: Application
    Filed: April 27, 2018
    Publication date: February 20, 2020
    Inventors: Bo ZHANG, Xiaohua DING, Dongcheng DAI, Sijun LEI, Xueming LIU, Panpan DUAN, Yongkai CHEN, Chaodong WANG
  • Publication number: 20190077753
    Abstract: Disclosed are methods for the preparation of Tecovirimat for the treatment or prophylaxis of viral infections and diseases associated therewith, particularly those viral infections and associated diseases caused by the orthopoxvirus.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 14, 2019
    Applicant: Siga Technologies, Inc.
    Inventor: Dongcheng DAI
  • Patent number: 10155723
    Abstract: Disclosed are methods for the preparation of Tecovirimat for the treatment or prophylaxis of viral infections and diseases associated therewith, particularly those viral infections and associated diseases caused by the orthopoxvirus.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: December 18, 2018
    Assignee: Siga Technologies, Inc.
    Inventor: Dongcheng Dai
  • Publication number: 20180297949
    Abstract: Disclosed are methods for the preparation of Tecovirimat for the treatment or prophylaxis of viral infections and diseases associated therewith, particularly those viral infections and associated diseases caused by the orthopoxvirus.
    Type: Application
    Filed: June 21, 2018
    Publication date: October 18, 2018
    Applicant: SIGA TECHNOLOGIES, INC.
    Inventor: Dongcheng DAI
  • Publication number: 20180228748
    Abstract: Compounds, pharmaceutical compositions and methods for treating viral and bacterial infections, by administering certain thiourea compounds, specifically acylthiourea, carboximidoylthiourea and S-alkyl isothiourea derivatives and analogs, in therapeutically effective amounts are disclosed.
    Type: Application
    Filed: April 17, 2018
    Publication date: August 16, 2018
    Applicant: SIGA TECHNOLOGIES, INC.
    Inventors: Robert D. ALLEN, III, Sean M. AMBERG, Dongcheng DAI, James R. BURGESON, Dennis E. HRUBY
  • Patent number: 10029985
    Abstract: Disclosed are methods for the preparation of Tecovirimat for the treatment or prophylaxis of viral infections and diseases associated therewith, particularly those viral infections and associated diseases caused by the orthopoxvirus.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: July 24, 2018
    Assignee: SIGA TECHNOLOGIES INC.
    Inventor: Dongcheng Dai
  • Patent number: 10000486
    Abstract: Compounds, methods and pharmaceutical compositions for treating viral infections, by administering certain compounds in therapeutically effective amounts are disclosed. Methods for preparing the compounds and methods of using the compounds and pharmaceutical compositions thereof are also disclosed. In particular, the treatment and prophylaxis of viral infections such as caused by the Arenavirus family such as Lassa fever, Argentine hemorrhagic fever, Bolivian hemorrhagic fever, and Venezuelan hemorrhagic fever.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: June 19, 2018
    Assignee: Kineta Viral Hemorrhagic Fever, LLC
    Inventors: Dongcheng Dai, James R. Burgeson, Sean M. Amberg, Dennis E. Hruby
  • Patent number: 9968571
    Abstract: Compounds, pharmaceutical compositions and methods for treating viral and bacterial infections, by administering certain thiourea compounds, specifically acylthiourea, carboximidoylthiourea and S-alkyl isothiourea derivatives and analogs, in therapeutically effective amounts are disclosed.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: May 15, 2018
    Assignee: SIGA TECHNOLOGIES, INC.
    Inventors: Robert D. Allen, III, Sean M. Amberg, Dongcheng Dai, James R. Burgeson, Dennis E. Hruby
  • Publication number: 20180086705
    Abstract: Disclosed are methods for the preparation of Tecovirimat for the treatment or prophylaxis of viral infections and diseases associated therewith, particularly those viral infections and associated diseases caused by the orthopoxvirus.
    Type: Application
    Filed: December 1, 2017
    Publication date: March 29, 2018
    Applicant: SIGA TECHNOLOGIES, INC.
    Inventor: Dongcheng DAI
  • Patent number: 9862683
    Abstract: Disclosed are methods for the preparation of Tecovirimat for the treatment or prophylaxis of viral infections and diseases associated therewith, particularly those viral infections and associated diseases caused by the orthopoxvirus.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: January 9, 2018
    Assignee: SIGA TECHNOLOGIES, INC.
    Inventor: Dongcheng Dai
  • Publication number: 20170137422
    Abstract: Compounds, methods and pharmaceutical compositions for treating viral infections, by administering certain compounds in therapeutically effective amounts are disclosed. Methods for preparing the compounds and methods of using the compounds and pharmaceutical compositions thereof are also disclosed. In particular, the treatment and prophylaxis of viral infections such as caused by the Arenavirus family such as Lassa fever, Argentine hemorrhagic fever, Bolivian hemorrhagic fever, and Venezuelan hemorrhagic fever.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 18, 2017
    Applicant: Kineta Four, LLC
    Inventors: Dongcheng Dai, James R. Burgeson, Sean M. Amberg, Dennis E. Hruby
  • Publication number: 20170128393
    Abstract: Compounds, pharmaceutical compositions and methods for treating viral and bacterial infections, by administering certain thiourea compounds, specifically acylthiourea, carboximidoylthiourea and S-alkyl isothiourea derivatives and analogs, in therapeutically effective amounts are disclosed.
    Type: Application
    Filed: December 22, 2016
    Publication date: May 11, 2017
    Applicant: SIGA TECHNOLOGIES, INC.
    Inventors: Robert D. ALLEN III, Sean M. AMBERG, Dongcheng DAI, James R. BURGESON, Dennis E. HRUBY
  • Publication number: 20170121344
    Abstract: Methods and pharmaceutical compositions for treating viral infections, by administering certain thienopyridine derivative compounds in therapeutically effective amounts are disclosed. Methods of using the compounds and pharmaceutical compositions thereof are also disclosed. In particular, the treatment of viral infections such as caused by flavivirus is disclosed, i.e., including but not limited to, Dengue virus, West Nile virus, yellow fever virus, Japanese encephalitis virus, and tick-borne encephalitis virus.
    Type: Application
    Filed: January 9, 2017
    Publication date: May 4, 2017
    Applicant: Siga Technologies, Inc.
    Inventors: Dongcheng DAI, James R. BURGESON, Shanthankumar R. TYAVANAGIMATT, Chelsea OLSEN, Dennis E. HRUBY
  • Publication number: 20170088517
    Abstract: Disclosed are methods for the preparation of Tecovirimat for the treatment or prophylaxis of viral infections and diseases associated therewith, particularly those viral infections and associated diseases caused by the orthopoxvirus.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 30, 2017
    Applicant: SIGA TECHNOLOGIES, INC.
    Inventor: Dongcheng DAI
  • Patent number: 9566254
    Abstract: Compounds, pharmaceutical compositions and methods for treating viral and bacterial infections, by administering certain thiourea compounds, specifically acylthiourea, carboximidoylthiourea and S-alkyl isothiourea derivatives and analogs, in therapeutically effective amounts are disclosed.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: February 14, 2017
    Assignee: SIGA TECHNOLOGIES, INC.
    Inventors: Robert D. Allen, III, Sean M. Amberg, Dongcheng Dai, James R. Burgeson, Dennis E. Hruby
  • Patent number: 9546137
    Abstract: Disclosed are methods for the preparation of Tecovirimat for the treatment or prophylaxis of viral infections and diseases associated therewith, particularly those viral infections and associated diseases caused by the orthopoxvirus.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: January 17, 2017
    Assignee: Siga Technologies Inc.
    Inventor: Dongcheng Dai