Patents by Inventor Bowen JIANG

Bowen JIANG 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: 20260132421
    Abstract: Methods for characterizing DNA impurities in adeno-associated virus (AAV) samples or biopharmaceuticals are provided including the use of size exclusion chromatography and spectrophotometry. Methods and compositions are also provided to minimize leakage of packed DNA from AAV vector including the use of excipients, such as a sugar, an amino acid, a surfactant, or polyols.
    Type: Application
    Filed: December 22, 2025
    Publication date: May 14, 2026
    Applicant: Regeneron Pharmaceuticals, Inc.
    Inventors: Dingjiang Liu, Bowen Jiang, Franco Tzul
  • Patent number: 12540333
    Abstract: Methods for characterizing DNA impurities in adeno-associated virus (AAV) samples or biopharmaceuticals are provided including the use of size exclusion chromatography and spectrophotometry. Methods and compositions are also provided to minimize leakage of packed DNA from AAV vector including the use of excipients, such as a sugar, an amino acid, a surfactant, or polyols.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: February 3, 2026
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Dingjiang Liu, Bowen Jiang, Franco Tzul
  • Patent number: 12513020
    Abstract: An airborne device which has a bus interface and a dedicated wireless transmission apparatus connected to the bus interface, the dedicated wireless transmission apparatus includes: an interface conversion module; and a wireless transmission module. The interface conversion module is configured to convert bus data received from the bus interface into a data packet suitable for transmission using a radio access technology, and/or to convert a data packet received from the wireless transmission module into bus data corresponding to the bus interface. The wireless transmission module is configured to use the radio access technology to transmit the converted data packet, and/or to receive the data packet transmitted using the radio access technology. In addition, a method and a system for wireless interconnection between airborne devices.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: December 30, 2025
    Assignees: COMMERCIAL AIRCRAFT CORPORATION OF CHINA, LTD., SHANGHAI AIRCRAFT DESIGN AND RESEARCH INSTITUTE OF COMMERCIAL AIRCRAFT CORPORATION OF CHINA
    Inventors: Zhiming Zheng, Jianfeng Miao, Shude Yuan, Lirong Xie, Bowen Jiang, Ze Chen
  • Publication number: 20250306029
    Abstract: Methods and systems for identifying capsid viral proteins in a sample containing viral vectors are provided, including determining the ratio of the capsid viral proteins of adeno-associated virus. The methods and systems comprise denaturing the capsid viral proteins in the sample, labelling the denatured capsid viral proteins with a lysine-conjugation dye, generating a separation profile of the denatured/labelled capsid viral proteins using microchip capillary electrophoresis, quantifying levels of the capsid viral proteins based on the separation profile, determining a quantification ratio of the capsid viral proteins based on the separation profile, and normalizing the quantification ratio based on lysine contents of the capsid viral proteins.
    Type: Application
    Filed: April 29, 2025
    Publication date: October 2, 2025
    Inventors: Bowen Jiang, Franco Tzul, Dingjiang Liu
  • Patent number: 12320814
    Abstract: Methods and systems for identifying capsid viral proteins in a sample containing viral vectors are provided, including determining the ratio of the capsid viral proteins of adeno-associated virus. The methods and systems comprise denaturing the capsid viral proteins in the sample, labelling the denatured capsid viral proteins with a lysine-conjugation dye, generating a separation profile of the denatured/labelled capsid viral proteins using microchip capillary electrophoresis, quantifying levels of the capsid viral proteins based on the separation profile, determining a quantification ratio of the capsid viral proteins based on the separation profile, and normalizing the quantification ratio based on lysine contents of the capsid viral proteins.
    Type: Grant
    Filed: August 28, 2021
    Date of Patent: June 3, 2025
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Bowen Jiang, Franco Tzul, Dingjiang Liu
  • Patent number: 12104424
    Abstract: Embodiments of the present invention disclose a logic intelligent control system of train door based on intelligent control unit. The system comprises: a first intelligent control unit located in a selected vehicle of a train, a second intelligent control unit located in each of the other remaining vehicles of the train, and a door controller located in each vehicle. The first intelligent control unit is configured to output corresponding door control instructions through the corresponding door control instruction output port after acquiring door control operation information; the door control instruction input ports corresponding to the first intelligent control unit and the second intelligent control units are configured to drive corresponding door controller control ports to control the door controllers of a corresponding vehicle to execute the door control instruction after receiving the door control instructions.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: October 1, 2024
    Assignee: CRRC QINGDAO SIFANG CO., LTD.
    Inventors: An Zhang, Jianying Liang, Bowen Jiang, Chuanming Sun, Mengyang Shi
  • Publication number: 20240233924
    Abstract: A blockchain-based and human characteristics intelligence recognition for appointment-based elderly care system includes a cloud server, a smartwatch and a management terminal, the cloud server is connected to the smartwatch and the management terminal, the smartwatch is worn on the elderly user, the management terminal includes a PC terminal, a mobile terminal and a display screen; the invention provides effective first time identification and can use the wearing device efficiently for a long time based on blockchain.
    Type: Application
    Filed: May 16, 2023
    Publication date: July 11, 2024
    Inventors: Benju Xie, Bowen Jiang, Xu Huang
  • Publication number: 20230275782
    Abstract: An airborne device which has a bus interface and a dedicated wireless transmission apparatus connected to the bus interface, the dedicated wireless transmission apparatus includes: an interface conversion module; and a wireless transmission module. The interface conversion module is configured to convert bus data received from the bus interface into a data packet suitable for transmission using a radio access technology, and/or to convert a data packet received from the wireless transmission module into bus data corresponding to the bus interface. The wireless transmission module is configured to use the radio access technology to transmit the converted data packet, and/or to receive the data packet transmitted using the radio access technology. In addition, a method and a system for wireless interconnection between airborne devices.
    Type: Application
    Filed: December 25, 2020
    Publication date: August 31, 2023
    Applicants: COMMERCIAL AIRCRAFT CORPORATION OF CHINA, LTD., SHANGHAI AIRCRAFT DESIGN AND RESEARCH INSTITUTE OF COMMERCIAL AIRCRAFT CORPORATION OF CHINA
    Inventors: Zhiming ZHENG, Jianfeng MIAO, Shude YUAN, Lirong XIE, Bowen JIANG, Ze CHEN
  • Publication number: 20220282552
    Abstract: Embodiments of the present invention disclose a logic intelligent control system of train door based on intelligent control unit. The system comprises: a first intelligent control unit located in a selected vehicle of a train, a second intelligent control unit located in each of the other remaining vehicles of the train, and a door controller located in each vehicle. The first intelligent control unit is configured to output corresponding door control instructions through the corresponding door control instruction output port after acquiring door control operation information; the door control instruction input ports corresponding to the first intelligent control unit and the second intelligent control units are configured to drive corresponding door controller control ports to control the door controllers of a corresponding vehicle to execute the door control instruction after receiving the door control instructions.
    Type: Application
    Filed: April 22, 2020
    Publication date: September 8, 2022
    Inventors: An ZHANG, Jianying LIANG, Bowen JIANG, Chuanming SUN, Mengyang SHI
  • Publication number: 20220136073
    Abstract: Methods for characterizing DNA impurities in adeno-associated virus (AAV) samples or biopharmaceuticals are provided including the use of size exclusion chromatography and spectrophotometry. Methods and compositions are also provided to minimize leakage of packed DNA from AAV vector including the use of excipients, such as a sugar, an amino acid, a surfactant, or polyols.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 5, 2022
    Inventors: Bowen Jiang, Dingjiang Liu, Franco Tzul
  • Publication number: 20220065868
    Abstract: Methods and systems for identifying capsid viral proteins in a sample containing viral vectors are provided, including determining the ratio of the capsid viral proteins of adeno-associated virus. The methods and systems comprise denaturing the capsid viral proteins in the sample, labeling the denatured capsid viral proteins with a lysine-conjugation dye, generating a separation profile of the denatured/labeled capsid viral proteins using microchip capillary electrophoresis, quantifying levels of the capsid viral proteins based on the separation profile, determining a quantification ratio of the capsid viral proteins based on the separation profile, and normalizing the quantification ratio based on lysine contents of the capsid viral proteins.
    Type: Application
    Filed: August 28, 2021
    Publication date: March 3, 2022
    Inventors: Bowen Jiang, Franco Tzul, Dingjiang Liu
  • Publication number: 20190111001
    Abstract: A delivery system that allows for targeted released of therapeutics in selected regions of the GI tract is provided. The delivery system is adapted to deliver a certain type of therapeutic, such as a protein-based therapeutic, to a certain area of the GI tract, such the colon of a subject. The delivery vehicle comprises a microbead coated with layers that include: a subcoat layer and a therapeutic agent layer. The delivery vehicles may also include an enteric coating layer and/or a sustained release layer.
    Type: Application
    Filed: March 30, 2017
    Publication date: April 18, 2019
    Applicant: University of Maryland, Baltimore
    Inventors: Hanping FENG, Hua YU, Stephen HOAG, Bowen JIANG