Patents by Inventor Juncai BAI

Juncai BAI 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).

  • STABLE GLP-1 ANALOGS FOR THE TREATMENT OF HUMAN DISEASE AND DISORDERS
    Publication number: 20250074964
    Abstract: The disclosure described herein provides for enzymatically stable and potent GLP-1 analogs (i.e., derivatives) for the treatment of metabolic disease or disorder in a subject. In some embodiments, the GLP-1 analog is a derivatized GLP-1 peptide, wherein the derivatized peptide has 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 amino acid differences from any one of GLP-1, GLP-1(7-39), GLP-1(7-36), GLP-1(7-37). In certain embodiments, the GLP-1 analog comprises at least one lysine substituent. The GLP-1 analogs described herein demonstrate potent receptor binding and extended plasma half-life. A pharmaceutical composition of the GLP-1 analogs is described herein for the treatment of metabolic disease or disorder in a subject, such as diabetes or obesity.
    Type: Application
    Filed: September 5, 2024
    Publication date: March 6, 2025
    Inventors: Juncai BAI, Guoqing ZHANG, Fuliang ZHANG, Michael William PENNINGTON, Simrat P. SINGH
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 12146003
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: November 16, 2023
    Date of Patent: November 19, 2024
    Assignee: Bausch Health Ireland Limited
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20240287137
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: November 16, 2023
    Publication date: August 29, 2024
    Inventors: KUNWAR SHAILUBHAI, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 11834521
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: December 5, 2023
    Assignee: Bausch Health Ireland Limited
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20230340023
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 26, 2023
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 11319346
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: May 3, 2022
    Assignee: Bausch Health Ireland Limited
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20220119449
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: August 9, 2021
    Publication date: April 21, 2022
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20210403508
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: September 17, 2021
    Publication date: December 30, 2021
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 11142549
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: October 12, 2021
    Assignee: Bausch Health Ireland Limited
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20200399315
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: July 6, 2020
    Publication date: December 24, 2020
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 10745441
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: August 18, 2020
    Assignee: Bausch Health Ireland Limited
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Process of Preparing Guanylate Cyclase C Agonists
    Publication number: 20200040038
    Abstract: The invention provides processes of preparing a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-249 described herein.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 6, 2020
    Inventors: Juncai Bai, Ruoping Zhang, Jun Jian, Junfeng Zhou, Qiao Zhao, Guoquing Zhang, Kunwar Shailubhai, Stephen Comiskey, Rong Feng
  • Process of preparing guanylate cyclase C agonisys
    Patent number: 10421787
    Abstract: The invention provides processes of preparing a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-249 described herein.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: September 24, 2019
    Assignee: Bausch Health Ireland Limited
    Inventors: Juncai Bai, Ruoping Zhang, Jun Jian, Junfeng Zhou, Qiao Zhao, Guoquing Zhang, Kunwar Shailubhai, Stephen Comiskey, Rong Feng
  • METHOD OF PRODUCING LEUPROLIDE MICROSPHERE AND USE
    Publication number: 20190192614
    Abstract: Provided herein are, inter alia, a vial comprising lyophilized leuprolide and a method of manufacturing the same.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 27, 2019
    Inventors: Juncai Bai, Simrat Singh
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20190002501
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: June 5, 2018
    Publication date: January 3, 2019
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • Ultra-pure agonists of guanylate cyclase C, method of making and using same
    Patent number: 10011637
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: July 3, 2018
    Assignee: SYNERGY PHARMACEUTICALS, INC.
    Inventors: Kunwar Shailubhai, Stephen Comiskey, Rong Feng, Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoqing Zhang
  • PROCESS OF PREPARING GUANYLATE CYCLASE C AGONISYS
    Publication number: 20170129925
    Abstract: The invention provides processes of preparing a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-249 described herein.
    Type: Application
    Filed: January 13, 2017
    Publication date: May 11, 2017
    Applicant: Synergy Pharmaceuticals Inc.
    Inventors: Juncai Bai, Ruoping Zhang, Jun Jian, Junfeng Zhou, Qiao Zhao, Guoquing Zhang, Kunwar Shailubhai, Stephen Comiskey, Rong Feng
  • Process of preparing guanylate cyclase C agonists
    Patent number: 9580471
    Abstract: The invention provides processes of preparing a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-249 described herein.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: February 28, 2017
    Assignee: SYNERGY PHARMACEUTICALS, INC.
    Inventors: Juncai Bai, Ruoping Zhang, Jun Jia, Junfeng Zhou, Qiao Zhao, Guoquing Zhang, Kunwar Shailubhai, Stephen Comiskey, Rong Feng
  • METHOD OF PRODUCING BIVALIRUDIN
    Publication number: 20170029467
    Abstract: The present disclosure provides a method of producing bivalirudin using a peptide fragment or peptide fragments on solid phase peptide synthesis that minimizes, or eliminates, the production of bivalirudin molecules having too few or too many glycine residues.
    Type: Application
    Filed: May 31, 2016
    Publication date: February 2, 2017
    Inventors: Guoqing Zhang, Ruoping Zhang, Juncai Bai
  • ULTRA-PURE AGONISTS OF GUANYLATE CYCLASE C, METHOD OF MAKING AND USING SAME
    Publication number: 20160145307
    Abstract: The invention provides processes of purifying a peptide including a GCC agonist sequence selected from the group consisting of SEQ ID NOs: 1-251 described herein. The processes include a solvent exchange step before a freeze-drying (lyophilization) step.
    Type: Application
    Filed: June 5, 2014
    Publication date: May 26, 2016
    Inventors: Kunwar SHAILUBHAI, Stephen COMISKEY, Rong FENG, Juncai BAI, Ruoping ZHANG, Jun JIA, Junfeng ZHOU, Qiao ZHAO, Guoqing ZHANG