Patents by Inventor Chi-Li Chen

Chi-Li Chen 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: 20250127903
    Abstract: This invention provides amine-linked C3-glutarimide Degronimers and Degrons for therapeutic applications as described further herein, and methods of use and compositions thereof as well as methods for their preparation.
    Type: Application
    Filed: July 16, 2024
    Publication date: April 24, 2025
    Applicant: C4 THERAPEUTICS, INC.
    Inventors: Andrew J. Phillips, Christopher G. Nasveschuk, James A. Henderson, Yanke Liang, Chi-Li Chen, Martin Duplessis, Minsheng He, Kiel Lazarski
  • Patent number: 12269807
    Abstract: The invention relates to crystalline forms of the bis-HCl salt of a compound represented by Structural Formula 1, and pharmaceutical compositions comprising crystalline forms of the bis-HCL salt of a compound represented by Structural Formula 1 described herein. The crystalline forms of the bis-HCl salt of a compound of Structural Formula 1 and compositions comprising the crystalline forms of the compound of Structural Formula 1 provided herein, in particular, crystalline Form I, crystalline Form J, crystalline Form A, and crystalline Form B, or mixtures thereof, can be incorporated into pharmaceutical compositions, which can be used to treat various disorders. Also described herein are methods for preparing the crystalline forms (e.g., Forms I, J, B and A) of the bis-HCl salt of a compound represented by Structural Formula 1.
    Type: Grant
    Filed: January 5, 2023
    Date of Patent: April 8, 2025
    Assignee: Tetraphase Pharmaceuticals, Inc.
    Inventors: Danny LaFrance, Philip C. Hogan, Yansheng Liu, Minsheng He, Chi-Li Chen, John Niu
  • Publication number: 20250101037
    Abstract: This invention provides Degronimers that have E3 Ubiquitin Ligase targeting moieties (Degrons) that can be linked to a targeting ligand for a protein that has been selected for in vivo degradation, and methods of use and compositions thereof as well as methods for their preparation. The invention also provides Degrons that can be used to treat disorders mediated by cereblon or an Ikaros family protein, and methods of use and compositions thereof as well as methods for their preparation.
    Type: Application
    Filed: December 9, 2024
    Publication date: March 27, 2025
    Applicant: C4 THERAPEUTICS, INC.
    Inventors: Andrew J. Phillips, Christopher G. Nasveschuk, James A. Henderson, Yanke Liang, Minsheng He, Martin Duplessis, Chi-Li Chen
  • Patent number: 12180225
    Abstract: This invention provides Degronimers that have E3 Ubiquitin Ligase targeting moieties (Degrons) that can be linked to a targeting ligand for a protein that has been selected for in vivo degradation, and methods of use and compositions thereof as well as methods for their preparation. The invention also provides Degrons that can be used to treat disorders mediated by cereblon or an Ikaros family protein, and methods of use and compositions thereof as well as methods for their preparation.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: December 31, 2024
    Assignee: C4 Therapeutics, Inc.
    Inventors: Andrew J. Phillips, Christopher G. Nasveschuk, James A. Henderson, Yanke Liang, Minsheng He, Martin Duplessis, Chi-Li Chen
  • Patent number: 12048747
    Abstract: This invention provides amine-linked C3-glutarimide Degronimers for therapeutic applications as described further herein, and methods of use and compositions thereof as well as methods for their preparation, wherein the C3-glutarimide Degronimers have the formula:
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: July 30, 2024
    Assignee: C4 Therapeutics, Inc.
    Inventors: Andrew J. Phillips, Christopher G. Nasveschuk, James A. Henderson, Yanke Liang, Chi-Li Chen, Martin Duplessis, Minsheng He, Kiel Lazarski
  • Publication number: 20230416212
    Abstract: The invention relates to crystalline forms of the bis-HCl salt of a compound represented by Structural Formula 1, and pharmaceutical compositions comprising crystalline forms of the bis-HCL salt of a compound represented by Structural Formula 1 described herein. The crystalline forms of the bis-HCl salt of a compound of Structural Formula 1 and compositions comprising the crystalline forms of the compound of Structural Formula 1 provided herein, in particular, crystalline Form I, crystalline Form J, crystalline Form A, and crystalline Form B, or mixtures thereof, can be incorporated into pharmaceutical compositions, which can be used to treat various disorders. Also described herein are methods for preparing the crystalline forms (e.g., Forms I, J, B and A) of the bis-HCl salt of a compound represented by Structural Formula 1.
    Type: Application
    Filed: January 5, 2023
    Publication date: December 28, 2023
    Inventors: Danny Lafrance, Philip C. Hogan, Yansheng Liu, Minsheng He, Chi-Li Chen, John Niu
  • Publication number: 20230279023
    Abstract: This invention provides Degronimers that have E3 Ubiquitin Ligase targeting moieties (Degrons) that can be linked to a targeting ligand for a protein that has been selected for in vivo degradation, and methods of use and compositions thereof as well as methods for their preparation. The invention also provides Degrons that can be used to treat disorders mediated by cereblon or an Ikaros family protein, and methods of use and compositions thereof as well as methods for their preparation.
    Type: Application
    Filed: October 3, 2022
    Publication date: September 7, 2023
    Applicant: C4 Therapeutics, Inc.
    Inventors: Andrew J. Phillips, Christopher G. Nasveschuk, James A. Henderson, Yanke Liang, Minsheng He, Martin Duplessis, Chi-Li Chen
  • Patent number: 11578044
    Abstract: The invention relates to crystalline forms of the bis-HCl salt of a compound represented by Structural Formula 1, and pharmaceutical compositions comprising crystalline forms of the bis-HCL salt of a compound represented by Structural Formula 1 described herein. The crystalline forms of the bis-HCl salt of a compound of Structural Formula 1 and compositions comprising the crystalline forms of the compound of Structural Formula 1 provided herein, in particular, crystalline Form I, crystalline Form J, crystalline Form A, and crystalline Form B, or mixtures thereof, can be incorporated into pharmaceutical compositions, which can be used to treat various disorders. Also described herein are methods for preparing the crystalline forms (e.g., Forms I, J, B and A) of the bis-HCl salt of a compound represented by Structural Formula 1.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: February 14, 2023
    Assignee: Tetraphase Pharmaceuticals, Inc.
    Inventors: Danny LaFrance, Philip C. Hogan, Yansheng Liu, Minsheng He, Chi-Li Chen, John Niu
  • Publication number: 20220313827
    Abstract: This invention provides amine-linked C3-glutarimide Degronimers and Degrons for therapeutic applications as described further herein, and methods of use and compositions thereof as well as methods for their preparation.
    Type: Application
    Filed: December 14, 2020
    Publication date: October 6, 2022
    Applicant: C4 Therapeutics, Inc.
    Inventors: Andrew J. Phillips, Chris G. Nasveschuk, James A. Henderson, Yanke Liang, Chi-li Chen, Martin Duplessis, Minsheng He, Kiel Lazarski
  • Patent number: 11459335
    Abstract: This invention provides Degronimers that have E3 Ubiquitin Ligase targeting moieties (Degrons) that can be linked to a targeting ligand for a protein that has been selected for in vivo degradation, and methods of use and compositions thereof as well as methods for their preparation. The invention also provides Degrons that can be used to treat disorders mediated by cereblon or an Ikaros family protein, and methods of use and compositions thereof as well as methods for their preparation.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 4, 2022
    Assignee: C4 Therapeutics, Inc.
    Inventors: Andrew J. Phillips, Christopher G. Nasveschuk, James A. Henderson, Yanke Liang, Minsheng He, Martin Duplessis, Chi-Li Chen
  • Publication number: 20210363103
    Abstract: The invention relates to crystalline forms of the bis-HCl salt of a compound represented by Structural Formula 1, and pharmaceutical compositions comprising crystalline forms of the bis-HCL salt of a compound represented by Structural Formula 1 described herein. The crystalline forms of the bis-HCl salt of a compound of Structural Formula 1 and compositions comprising the crystalline forms of the compound of Structural Formula 1 provided herein, in particular, crystalline Form I, crystalline Form J, crystalline Form A, and crystalline Form B, or mixtures thereof, can be incorporated into pharmaceutical compositions, which can be used to treat various disorders. Also described herein are methods for preparing the crystalline forms (e.g., Forms I, J, B and A) of the bis-HCl salt of a compound represented by Structural Formula 1.
    Type: Application
    Filed: March 1, 2021
    Publication date: November 25, 2021
    Inventors: Danny Lafrance, Philip C. Hogan, Yansheng Liu, Minsheng He, Chi-Li Chen, John Niu
  • Patent number: 10961190
    Abstract: The invention relates to crystalline forms of the bis-HCI salt of a compound represented by Structural Formula 1, and pharmaceutical compositions comprising crystalline forms of the bis-HCL salt of a compound represented by Structural Formula 1 described herein. The crystalline forms of the bis-HCl salt of a compound of Structural Formula 1 and compositions comprising the crystalline forms of the compound of Structural Formula 1 provided herein, in particular, crystalline Form I, crystalline Form J, crystalline Form A, and crystalline Form B, or mixtures thereof, can be incorporated into pharmaceutical compositions, which can be used to treat various disorders. Also described herein are methods for preparing the crystalline forms (e.g., Forms I, J, B and A) of the bis-HCI salt of a compound represented by Structural Formula 1.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: March 30, 2021
    Assignee: Tetraphase Pharmaceuticals, Inc.
    Inventors: Danny LaFrance, Philip C. Hogan, Yansheng Liu, Minsheng He, Chi-Li Chen, John Niu
  • Publication number: 20200140456
    Abstract: This invention provides Degronimers that have E3 Ubiquitin Ligase targeting moieties (Degrons) that can be linked to a targeting ligand for a protein that has been selected for in vivo degradation, and methods of use and compositions thereof as well as methods for their preparation. The invention also provides Degrons that can be used to treat disorders mediated by cereblon or an Ikaros family protein, and methods of use and compositions thereof as well as methods for their preparation.
    Type: Application
    Filed: December 19, 2019
    Publication date: May 7, 2020
    Applicant: C4 Therapeutics, Inc.
    Inventors: Andrew J. Phillips, Christopher G. Nasveschuk, James A. Henderson, Yanke Liang, Minsheng He, Martin Duplessis, Chi-Li Chen
  • Publication number: 20190256462
    Abstract: The invention relates to crystalline forms of the bis-HCI salt of a compound represented by Structural Formula 1, and pharmaceutical compositions comprising crystalline forms of the bis-HCL salt of a compound represented by Structural Formula 1 described herein. The crystalline forms of the bis-HCl salt of a compound of Structural Formula 1 and compositions comprising the crystalline forms of the compound of Structural Formula 1 provided herein, in particular, crystalline Form I, crystalline Form J, crystalline Form A, and crystalline Form B, or mixtures thereof, can be incorporated into pharmaceutical compositions, which can be used to treat various disorders. Also described herein are methods for preparing the crystalline forms (e.g., Forms I, J, B and A) of the bis-HCI salt of a compound represented by Structural Formula 1.
    Type: Application
    Filed: October 19, 2017
    Publication date: August 22, 2019
    Inventors: Danny LaFrance, Philip C. Hogan, Yansheng Liu, Minsheng He, Chi-Li Chen, John Niu
  • Publication number: 20190077803
    Abstract: The present invention is directed to a compound represented by Structural Formula (I): or a pharmaceutically acceptable salt thereof. The variables for Structural Formula I are defined herein. Also described is a pharmaceutical composition comprising the compound of Structural Formula I and its therapeutic use.
    Type: Application
    Filed: May 2, 2018
    Publication date: March 14, 2019
    Inventors: Chi-Li Chen, Roger B. Clark, Yonghong Deng, Minsheng He, Louis Plamondon, Cuixiang Sun, Xiao-Yi Xiao, Magnus P. Ronn
  • Publication number: 20190076539
    Abstract: This invention provides amine-linked C3-glutarimide Degronimers and Degrons for therapeutic applications as described further herein, and methods of use and compositions thereof as well as methods for their preparation.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 14, 2019
    Applicant: C4 Theraprutics, Inc.
    Inventors: Andrew J. Phillips, Chris G. Nasveschuk, James A. Henderson, Yanke Liang, Chi-li Chen, Martin Duplessis, Minsheng He, Kiel Lazarski
  • Patent number: 10072007
    Abstract: The present invention is directed to a compound represented by Structural Formula (I): or a pharmaceutically acceptable salt thereof. The variables for Structural Formula I are defined herein. Also described is a pharmaceutical composition comprising the compound of Structural Formula I and its therapeutic use.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 11, 2018
    Assignee: Tetraphase Pharmaceuticals, Inc.
    Inventors: Chi-Li Chen, Roger B. Clark, Yonghong Deng, Minsheng He, Louis Plamondon, Cuixiang Sun, Xiao-Yi Xiao, Magnus P. Ronn
  • Publication number: 20170044160
    Abstract: The present invention is directed to a compound represented by Structural Formula (I): or a pharmaceutically acceptable salt thereof. The variables for Structural Formula I are defined herein. Also described is a pharmaceutical composition comprising the compound of Structural Formula I and its therapeutic use.
    Type: Application
    Filed: March 24, 2016
    Publication date: February 16, 2017
    Inventors: Chi-Li Chen, Roger B. Clark, Yonghong Deng, Minsheng He, Louis Plamondon, Cuixiang Sun, Xiao-Yi Xiao, Magnus P. Ronn
  • Patent number: 9534689
    Abstract: A metal seal ring disclosed herein includes a front side surface having a plurality of first sealing areas and second sealing areas, and a back side surface having a plurality of spaced-apart protrusions having a radially innermost surface located at a first radial distance from a longitudinal axis of the seal and a first axial distance from an axis of symmetry of the seal. The back side also includes a plurality of recesses located between one of the protrusions and the axis of symmetry, each recess having a radially outermost surface located at a second radial distance from the longitudinal axis and a second axial distance from the axis of symmetry. A ratio of the second axial distance to the first axial distance falls within the range of about 0.38-0.63, and a ratio of the second radial distance to the first radial distance falls within the range of about 0.79-1.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: January 3, 2017
    Assignee: FMC Technologies, Inc.
    Inventor: Chi-Li Chen
  • Publication number: 20160258534
    Abstract: A metal seal ring disclosed herein includes a front side surface having a plurality of first sealing areas and second sealing areas, and a back side surface having a plurality of spaced-apart protrusions having a radially innermost surface located at a first radial distance from a longitudinal axis of the seal and a first axial distance from an axis of symmetry of the seal. The back side also includes a plurality of recesses located between one of the protrusions and the axis of symmetry, each recess having a radially outermost surface located at a second radial distance from the longitudinal axis and a second axial distance from the axis of symmetry. A ratio of the second axial distance to the first axial distance falls within the range of about 0.38-0.63, and a ratio of the second radial distance to the first radial distance falls within the range of about 0.79-1.
    Type: Application
    Filed: March 5, 2015
    Publication date: September 8, 2016
    Inventor: Chi-Li Chen