Patents by Inventor Pei-Yun Chang

Pei-Yun Chang 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: 20230322900
    Abstract: The present invention relates to compositions comprising factor VIII coagulation factors linked to extended recombinant polypeptide (XTEN), isolated nucleic acids encoding the compositions and vectors and host cells containing the same, and methods of making and using such compositions in treatment of factor VIII-related diseases, disorders, and conditions.
    Type: Application
    Filed: December 12, 2022
    Publication date: October 12, 2023
    Inventors: Volker Schellenberger, Pei-Yun Chang, Fatbardha Varfaj, Sheng Ding, Joshua Silverman, Chia-wei Wang, Benjamin Spink, Willem P. Stemmer, Nathan Geething, John Kulman, Tongyao Liu, Garabet G. Toby, Haiyan Jiang, Robert Peters, Deping Wang, Baisong Mei
  • Publication number: 20230019286
    Abstract: The present invention relates to compositions comprising factor VIII coagulation factors linked to extended recombinant polypeptide (XTEN), isolated nucleic acids encoding the compositions and vectors and host cells containing the same, and methods of making and using such compositions in treatment of factor VIII-related diseases, disorders, and conditions.
    Type: Application
    Filed: April 26, 2021
    Publication date: January 19, 2023
    Inventors: Volker SCHELLENBERGER, Pei-Yun CHANG, Fatbardha VARFAJ, John KULMAN, Tongyao LIU, Garabet G. TOBY, Haiyan JIANG, Robert PETERS, Deping WANG, Baisong MEI, Joshua SILVERMAN, Chia-Wei WANG, Benjamin SPINK, Nathan GEETHING
  • Publication number: 20220056108
    Abstract: The present invention provides a chimeric protein comprising a VWF protein comprising the D? domain and D3 domain of VWF, one or more XTEN sequence, and a FVIII protein, wherein the VWF fragment, the XTEN sequence, or the FVIII protein are linked to or associated with each other. The chimeric protein can further comprise one or more Ig constant region or a portion thereof (e.g., an Fc region). A polypeptide chain comprising a VWF fragment of the invention binds to or is associated with a polypeptide chain comprising a FVIII protein linked to an XTEN sequence and the polypeptide chain comprising the VWF fragment can prevent or inhibit binding of endogenous VWF to the FVIII protein linked to the XTEN sequence. By preventing or inhibiting binding of endogenous VWF to the FVIII protein, which is a half-life limiting factor for FVIII, the VWF fragment can induce extension of half-life of the chimeric protein comprising a FVIII protein.
    Type: Application
    Filed: June 25, 2021
    Publication date: February 24, 2022
    Inventors: Ekta Seth CHHABRA, Tongyao LIU, Pei-yun CHANG, Robert T. PETERS, John KULMAN, Haiyan JIANG
  • Patent number: 11091534
    Abstract: The present invention provides a chimeric protein comprising a VWF protein comprising the D? domain and D3 domain of VWF, one or more XTEN sequence, and a FVIII protein, wherein the VWF fragment, the XTEN sequence, or the FVIII protein are linked to or associated with each other. The chimeric protein can further comprise one or more Ig constant region or a portion thereof (e.g., an Fc region). A polypeptide chain comprising a VWF fragment of the invention binds to or is associated with a polypeptide chain comprising a FVIII protein linked to an XTEN sequence and the polypeptide chain comprising the VWF fragment can prevent or inhibit binding of endogenous VWF to the FVIII protein linked to the XTEN sequence. By preventing or inhibiting binding of endogenous VWF to the FVIII protein, which is a half-life limiting factor for FVIII, the VWF fragment can induce extension of half-life of the chimeric protein comprising a FVIII protein.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: August 17, 2021
    Assignee: Bioverativ Therapeutics Inc.
    Inventors: Ekta Seth Chhabra, Tongyao Liu, Pei-yun Chang, Robert T. Peters, John Kulman, Haiyan Jiang
  • Publication number: 20200087379
    Abstract: The present invention relates to compositions comprising factor VIII coagulation factors linked to extended recombinant polypeptide (XTEN), isolated nucleic acids encoding the compositions and vectors and host cells containing the same, and methods of making and using such compositions in treatment of factor VIII-related diseases, disorders, and conditions.
    Type: Application
    Filed: July 25, 2019
    Publication date: March 19, 2020
    Inventors: Volker Schellenberger, Pei-Yun Chang, Fatbardha Varfaj, Sheng Ding, Joshua Silverman, Chia-wei Wang, Benjamin Spink, Willem P. Stemmer, Nathan Geething, John Kulman, Tongyao Liu, Garabet G. Toby, Haiyan Jiang, Robert Peters, Deping Wang, Baisong Mei
  • Patent number: 10548953
    Abstract: The present invention provides chimeric proteins comprising a Factor VIII (FVIII) polypeptide and XTEN polypeptides. The FVIII polypeptide can have a reduced affinity for von Willebrand Factor (VWF). XTEN polypeptides of appropriate sizes are inserted into the FVIII polypeptide at particular locations in order to extend the half-life of the FVIII polypeptide. The invention also includes nucleotides, vectors, host cells, and methods of using the chimeric proteins, e.g., to treat bleeding diseases and disorders.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: February 4, 2020
    Assignee: BIOVERATIV THERAPEUTICS INC.
    Inventors: Tongyao Liu, Pei-Yun Chang, John Kulman, Volker Schellenberger, Haiyan Jiang, Robert T. Peters, Ekta Seth Chhabra
  • Publication number: 20190315835
    Abstract: The present invention relates to compositions comprising factor VIII coagulation factors linked to extended recombinant polypeptide (XTEN), isolated nucleic acids encoding the compositions and vectors and host cells containing the same, and methods of making and using such compositions in treatment of factor VIII-related diseases, disorders, and conditions.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 17, 2019
    Inventors: Volker SCHELLENBERGER, Pei-Yun CHANG, Fatbardha VARFAJ, John KULMAN, Tongyao LIU, Garabet G. TOBY, Haiyan JIANG, Robert PETERS, Deping WANG, Baisong MEI, Joshua SILVERMAN, Chia-Wei WANG, Benjamin SPINK, Nathan GEETHING
  • Patent number: 10421798
    Abstract: The present invention relates to compositions comprising factor VIII coagulation factors linked to extended recombinant polypeptide (XTEN), isolated nucleic acids encoding the compositions and vectors and host cells containing the same, and methods of making and using such compositions in treatment of factor VIII-related diseases, disorders, and conditions.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: September 24, 2019
    Assignee: BIOVERATIV THERAPEUTICS INC.
    Inventors: Volker Schellenberger, Pei-Yun Chang, Fatbardha Varfaj, Sheng Ding, Joshua Silverman, Chia-wei Wang, Benjamin Spink, Willem P. Stemmer, Volker Schellenberger, Nathan Geething, John Kulman, Tongyao Liu, Garabet G. Toby, Haiyan Jiang, Robert Peters, Deping Wang, Baisong Mei
  • Publication number: 20190169267
    Abstract: The present invention provides a chimeric protein comprising a VWF protein comprising the D? domain and D3 domain of VWF, one or more XTEN sequence, and a FVIII protein, wherein the VWF fragment, the XTEN sequence, or the FVIII protein are linked to or associated with each other. The chimeric protein can further comprise one or more Ig constant region or a portion thereof (e.g., an Fc region). A polypeptide chain comprising a VWF fragment of the invention binds to or is associated with a polypeptide chain comprising a FVIII protein linked to an XTEN sequence and the polypeptide chain comprising the VWF fragment can prevent or inhibit binding of endogenous VWF to the FVIII protein linked to the XTEN sequence. By preventing or inhibiting binding of endogenous VWF to the FVIII protein, which is a half-life limiting factor for FVIII, the VWF fragment can induce extension of half-life of the chimeric protein comprising a FVIII protein.
    Type: Application
    Filed: October 8, 2018
    Publication date: June 6, 2019
    Applicant: Bioverativ Therapeutics Inc.
    Inventors: Ekta Seth CHHABRA, Tongyao LIU, Pei-yun CHANG, Robert T. PETERS, John KULMAN
  • Patent number: 10138291
    Abstract: The present invention provides a chimeric protein comprising a VWF protein comprising the D? domain and D3 domain of VWF, one or more XTEN sequence, and a FVIII protein, wherein the VWF fragment, the XTEN sequence, or the FVIII protein are linked to or associated with each other. The chimeric protein can further comprise one or more Ig constant region or a portion thereof (e.g., an Fc region). A polypeptide chain comprising a VWF fragment of the invention binds to or is associated with a polypeptide chain comprising a FVIII protein linked to an XTEN sequence and the polypeptide chain comprising the VWF fragment can prevent or inhibit binding of endogenous VWF to the FVIII protein linked to the XTEN sequence. By preventing or inhibiting binding of endogenous VWF to the FVIII protein, which is a half-life limiting factor for FVIII, the VWF fragment can induce extension of half-life of the chimeric protein comprising a FVIII protein.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: November 27, 2018
    Assignee: Bioverativ Therapeutics Inc.
    Inventors: Ekta Seth Chhabra, Tongyao Liu, Pei-yun Chang, Robert T. Peters, John Kulman
  • Publication number: 20160376344
    Abstract: The present invention relates to compositions comprising factor VIII coagulation factors linked to extended recombinant polypeptide (XTEN), isolated nucleic acids encoding the compositions and vectors and host cells containing the same, and methods of making and using such compositions in treatment of factor VIII-related diseases, disorders, and conditions.
    Type: Application
    Filed: May 24, 2016
    Publication date: December 29, 2016
    Applicant: Amunix Operating Inc.
    Inventors: Volker SCHELLENBERGER, Pei-Yun CHANG, Fatbardha VARFAJ, John KULMAN, Tongyao LIU, Garabet G. TOBY, Haiyan JIANG, Robert PETERS, Deping WANG, Baisong MEI, Joshua SILVERMAN, Chia-Wei WANG, Benjamin SPINK, Nathan GEETHING
  • Publication number: 20160199454
    Abstract: The present invention provides chimeric proteins comprising a Factor VIII (FVIII) polypeptide and XTEN polypeptides. The FVIII polypeptide can have a reduced affinity for von Willebrand Factor (VWF). XTEN polypeptides of appropriate sizes are inserted into the FVIII polypeptide at particular locations in order to extend the half-life of the FVIII polypeptide. The invention also includes nucleotides, vectors, host cells, and methods of using the chimeric proteins, e.g., to treat bleeding diseases and disorders.
    Type: Application
    Filed: August 14, 2014
    Publication date: July 14, 2016
    Applicants: Biogen MA Inc., Amunix Operating Inc.
    Inventors: Tongyao LIU, Pei-Yun CHANG, John KULMAN, Volker SCHELLENBERGER, Haiyan JIANG, Robert T. PETERS, Ekta Seth CHHABRA
  • Publication number: 20150266943
    Abstract: The present invention includes a chimeric protein comprising a VWF protein with D? domain and D3 domain of VWF, one or more XTEN sequence, and a FVIII protein, wherein the VWF fragment, the XTEN sequence, or the FVIII protein are linked to or associated with each other. The chimeric protein can further comprise one or more Ig constant region or a portion thereof (e.g., an Fc region). A polypeptide chain of a VWF fragment is associated with a FVIII polypeptide chain linked to an XTEN sequence. The VWF fragment polypeptide chain can prevent or inhibit binding of endogenous VWF to FVIII protein linked to the XTEN sequence. By preventing or inhibiting binding of endogenous VWF to FVIII protein, VWF fragment can extend half-life of chimeric protein comprising FVIII protein. The invention includes nucleotides, vectors, host cells, use of VWF fragment, or chimeric proteins.
    Type: Application
    Filed: July 10, 2013
    Publication date: September 24, 2015
    Applicants: AMUNIX OPERATING INC., BIOGEN MA INC.
    Inventors: Ekta Seth Chhabra, Tongyao Liu, Pei-yun Chang, Robert T. Peters, John Kulman
  • Publication number: 20150158929
    Abstract: The present invention relates to compositions comprising factor VIII coagulation factors linked to extended recombinant polypeptide (XTEN), isolated nucleic acids encoding the compositions and vectors and host cells containing the same, and methods of making and using such compositions in treatment of factor VIII-related diseases, disorders, and conditions.
    Type: Application
    Filed: July 11, 2012
    Publication date: June 11, 2015
    Applicants: AMUNIX OPERATING INC., BIOGEN IDEC MA INC.
    Inventors: Volker Schellenberger, Pei-Yun Chang, Fatbardha Varfaj, Sheng Ding, Joshua Silverman, Chia-wei Wang, Benjamin Spink, Willem P. Stemmer, Nathan Geething, John Kulman, Tongyao Liu, Garabet G. Toby, Haiyan Jiang, Robert Peters, Deping Wang, Baisong Mei
  • Publication number: 20150038421
    Abstract: The present invention relates to compositions comprising factor VIII coagulation factors linked to extended recombinant polypeptide (XTEN), isolated nucleic acids encoding the compositions and vectors and host cells containing the same, and methods of making and using such compositions in treatment of factor VIII-related diseases, disorders, and conditions.
    Type: Application
    Filed: June 27, 2014
    Publication date: February 5, 2015
    Inventors: Volker SCHELLENBERGER, Pei-Yun Chang, Fatbardha Varfaj, John Kulman, Tongyao Liu, Garabet G. Toby, Haiyan Jiang, Robert Peters, Deping Wang, Baisong Mei, Joshua Silverman, Chia-Wei Wang, Benjamin Spink, Nathan Geething
  • Publication number: 20130017997
    Abstract: The present invention relates to compositions comprising factor VIII coagulation factors linked to extended recombinant polypeptide (XTEN), isolated nucleic acids encoding the compositions and vectors and host cells containing the same, and methods of making and using such compositions in treatment of factor VIII-related diseases, disorders, and conditions.
    Type: Application
    Filed: February 2, 2012
    Publication date: January 17, 2013
    Applicant: Amunix Operating Inc.
    Inventors: Volker Schellenberger, Pei-Yun Chang, Fatbardha Varfaj, John Kulman, Tongyao Liu, Garabet G. Toby, Haiyan Jiang, Robert Peters, Deping Wang, Baisong Mei, Joshua Silverman, Chia-Wei Wang, Benjamin Spink, Nathan Geething
  • Publication number: 20120178691
    Abstract: The present invention relates to compositions comprising factor VIII coagulation factors linked to extended recombinant polypeptide (XTEN), isolated nucleic acids encoding the compositions and vectors and host cells containing the same, and methods of making and using such compositions in treatment of factor VIII-related diseases, disorders, and conditions.
    Type: Application
    Filed: March 16, 2012
    Publication date: July 12, 2012
    Applicant: Amunix Operating Inc.
    Inventors: Volker Schellenberger, Pei-Yun Chang, Fatbardha Varfaj, Joshua Silverman, Chia-Wei Wang, Benjamin Spink, Nathan Geething