Patents by Inventor Hunter Chen

Hunter 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).

  • Patent number: 11485770
    Abstract: The present disclosure pertains to compositions comprising anti-VEGF proteins and methods for producing such compositions.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: November 1, 2022
    Assignee: Regeneran Pharmaceuticals, Inc.
    Inventors: Shunhai Wang, Ning Li, Hunter Chen, Amardeep Singh Bhupender Bhalla
  • Publication number: 20220257707
    Abstract: The present invention provides methods for fabricating protein-encapsulating microgels using hydrocarbon-in-fluorocarbon emulsions. The non-aqueous emulsion-based microgel fabrication methods can be used for the encapsulation of a wide range of proteins and peptides, including antibodies and antibody-fusion proteins, for therapeutic use with ease of administration.
    Type: Application
    Filed: December 16, 2021
    Publication date: August 18, 2022
    Applicant: Regeneron Pharmaceuticals, Inc.
    Inventors: Yiming Zhao, Hunter Chen
  • Publication number: 20220249387
    Abstract: Microparticles containing a core of therapeutic protein and a cortex of a biocompatible and biodegradable polymer, and methods of making and using the microparticles are provided. The extended release of a therapeutic protein from the microparticles in a physiological solution is demonstrated over an extended period of time.
    Type: Application
    Filed: February 22, 2022
    Publication date: August 11, 2022
    Inventors: Hunter Chen, Scott Walsh
  • Publication number: 20220227836
    Abstract: The present disclosure pertains to compositions comprising anti-VEGF proteins and methods for producing such compositions.
    Type: Application
    Filed: February 8, 2022
    Publication date: July 21, 2022
    Inventors: Shunhai Wang, Ning Li, Hunter Chen, Amardeep Singh Bhupender Bhalla
  • Publication number: 20220227835
    Abstract: The present disclosure pertains to compositions comprising anti-VEGF proteins and methods for producing such compositions.
    Type: Application
    Filed: January 13, 2022
    Publication date: July 21, 2022
    Applicant: Regeneron Pharmaceuticals, Inc.
    Inventors: Shunhai Wang, Ning Li, Hunter Chen, Amardeep Singh Bhupender Bhalla
  • Publication number: 20220160828
    Abstract: Non-aqueous membrane emulsion methods for producing polymeric and polymer-coated microparticles are provided. Some embodiments provide methods for producing a sustained release or controlled release microparticle by combining micronized protein powder and a polymer into a hydrocarbon solvent to form a non-aqueous first solution, agitating the first non-aqueous solution to form a suspension, feeding the suspension into a dispersion pump, wherein the suspension is infused through a porous membrane into a continuous phase comprising a fluorocarbon liquid and a fluorosurfactant to form a hydrocarbon-in-fluorocarbon emulsion. The hydrocarbon solvent, the fluorocarbon liquid, and the fluorosurfactant are removed, and the microparticles are collected.
    Type: Application
    Filed: November 24, 2021
    Publication date: May 26, 2022
    Inventors: Hunter Chen, Yiming Zhao
  • Patent number: 11306135
    Abstract: The present disclosure pertains to compositions comprising anti-VEGF proteins and methods for producing such compositions.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: April 19, 2022
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Shunhai Wang, Ning Li, Hunter Chen, Amardeep Singh Bhupender Bhalla
  • Patent number: 11291636
    Abstract: Microparticles containing a core of therapeutic protein and a cortex of a biocompatible and biodegradable polymer, and methods of making and using the microparticles are provided. The extended release of a therapeutic protein from the microparticles in a physiological solution is demonstrated over an extended period of time.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: April 5, 2022
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Hunter Chen, Scott Walsh
  • Publication number: 20220098280
    Abstract: The present disclosure pertains to compositions comprising anti-VEGF proteins and methods for producing such compositions.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 31, 2022
    Inventors: Shunhai Wang, Ning Li, Hunter Chen, Amardeep Singh Bhupender Bhalla
  • Publication number: 20220009998
    Abstract: The present disclosure pertains to compositions comprising anti-VEGF proteins and methods for producing such compositions.
    Type: Application
    Filed: August 30, 2021
    Publication date: January 13, 2022
    Inventors: Shunhai Wang, Ning Li, Hunter Chen, Amardeep Singh Bhupender Bhalla
  • Publication number: 20220008505
    Abstract: Non-aqueous emulsion methods for producing polymeric or polymer-coated microparticles are provided. One method produces a sustained release microparticle composition by combining protein powder and a polymer into a hydrocarbon solvent to form a non-aqueous first solution and adding the first solution to a second solution, wherein the second solution comprises a fluorocarbon liquid and a fluorosurfactant to form a non-aqueous emulsion comprising multiple emulsion hydrocarbon droplets in the fluorocarbon liquid. The subsequent microparticle hardening process includes the steps of removing the hydrocarbon solvent from the formed emulsion droplets, which can be achieved through evaporation the hydrocarbon at ambient condition under stirring, or accelerated hardening through vacuum, or through adding hydrofluoroester into the fluorocarbon as a cosolvent.
    Type: Application
    Filed: November 25, 2020
    Publication date: January 13, 2022
    Inventors: Yiming ZHAO, Hunter CHEN
  • Patent number: 11186625
    Abstract: The present disclosure pertains to compositions comprising anti-VEGF proteins and methods for producing such compositions.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: November 30, 2021
    Assignee: Regeneran Pharmaceuticals, Inc.
    Inventors: Shunhai Wang, Ning Li, Hunter Chen, Amardeep Singh Bhupender Bhalla
  • Publication number: 20210223256
    Abstract: The disclosure relates to methods of analyzing a post-translationally modified protein of interest using electrophoresis, the methods comprising deglycosylating the protein of interest after labeling.
    Type: Application
    Filed: January 20, 2021
    Publication date: July 22, 2021
    Inventors: Yiming ZHAO, Hunter CHEN, Shao-Chun WANG, Timothy RIEHLMAN, Gabriel CARREAU, Ying WANG
  • Publication number: 20210171605
    Abstract: The present disclosure pertains to compositions comprising anti-VEGF proteins and methods for producing such compositions.
    Type: Application
    Filed: August 18, 2020
    Publication date: June 10, 2021
    Inventors: Shunhai Wang, Ning Li, Hunter Chen, Amardeep Singh Bhupender Bhalla
  • Publication number: 20200155678
    Abstract: The present invention pertains to compositions and methods of making high concentration protein formulations of a therapeutic protein.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 21, 2020
    Inventors: Hunter Chen, Erica Schlesinger
  • Publication number: 20200038328
    Abstract: The present disclosure is directed to methods for tuning the release profile of a biologic disposed in a hydrogel. Parameters that can be used for the tuning include a molar ratio of a nucleophilic group to an electrophilic group, the number of the nucleophilic groups in the first precursor, the number of the electrophilic groups in the second precursor, the molecular weight of the first precursor, the molecular weight of the second precursor, a weight ratio of the biologic and excipient to the hydrogel, a weight percentage of the biologic in a solid state formulation, and a ratio of surface area to volume of the hydrogel. The methods described herein allow the formation of hydrogel with different release profiles suitable for different therapeutic applications.
    Type: Application
    Filed: August 15, 2019
    Publication date: February 6, 2020
    Inventors: Hunter CHEN, Erica SCHLESINGER, James Feindt
  • Publication number: 20200022917
    Abstract: Micron-sized particles containing a therapeutic protein and optionally excipients and a coating of a biocompatible and biodegradable polymer, and methods of making and using those microparticles are provided. The therapeutic protein formulated as a pharmaceutical powder of micron-sized particles remains stable for extended periods of time and is amenable to polymer coating for extended release and stability under physiological conditions.
    Type: Application
    Filed: December 16, 2016
    Publication date: January 23, 2020
    Inventors: Philip Brudnicki, Hunter Chen
  • Publication number: 20180289623
    Abstract: Stable pharmaceutical formulations and drug delivery devices are disclosed. In certain embodiments, the drug delivery device contains a reservoir when implanted into a patient is in partial contact with the tissue environment. The reservoir remains in contact with the environment via a porous structure in the housing of the delivery device. The reservoir contains a combination of the therapeutic biomolecule and a second molecule that serves to stabilize and restrict the solubility of the therapeutic biomolecule, thereby controlling the amount of therapeutic biomolecule that is in solution. The concentration of the soluble therapeutic biomolecule or the size of the surface area of the porous structure controls the rate of delivery of the therapeutic biomolecule to the target tissue.
    Type: Application
    Filed: October 14, 2016
    Publication date: October 11, 2018
    Inventors: Hunter Chen, Erica Schlesinger
  • Publication number: 20170181978
    Abstract: Microparticles containing a core of therapeutic protein and a cortex of a biocompatible and biodegradable polymer, and methods of making and using the microparticles are provided. The extended release of a therapeutic protein from the microparticles in a physiological solution is demonstrated over an extended period of time.
    Type: Application
    Filed: March 6, 2017
    Publication date: June 29, 2017
    Inventors: Hunter CHEN, Scott Walsh
  • Patent number: 7324316
    Abstract: A hot-swap circuit system for fan tray module includes a soft-start circuit module in charge of the power start of the fan tray module hot-plugged into an application system. The soft-start circuit module includes a capacitor and a field effect transistor. The capacitor discharges and the field effect transistor turns off when an input voltage is changed from a certain value to zero.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: January 29, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Hunter Chen, Chun-Lung Chiu, Wen-Shi Huang