Patents by Inventor Yihua Bruce Yu

Yihua Bruce Yu 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: 11971374
    Abstract: A method of using the transverse relaxation time (T2) of solvent NMR signal to detect filling errors of an alum-containing product in real-time and in-line during manufacturing, for example during a fill-finish unit operation. This method can be used for quality control in vaccine manufacturing to ensure the delivery of the correct concentration of alum-containing product to the product container such as a vial or pre-filled syringe.
    Type: Grant
    Filed: January 3, 2023
    Date of Patent: April 30, 2024
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: Yihua (Bruce) Yu, Marc B. Taraban
  • Patent number: 11946885
    Abstract: A method of using the relaxation rate (R1 and/or R2) of solvent NMR signal to noninvasively assess whether viral capsids in a capsid preparation are full or empty, and the percentage of full capsids if the vial contains a mixture of full and empty capsids. The method can simply, rapidly, and non-invasively prove the safety and potency of the capsid preparation and thus whether the capsid preparation can be approved for clinical use, without requiring any sample preparation or reagent addition.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: April 2, 2024
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: Yihua (Bruce) Yu, Marc Taraban
  • Patent number: 11914013
    Abstract: A method for using water proton transverse relaxation rate R2(T) to monitor, in real time, the sedimentation rates of multiphase mixtures such as drug products and drug substances. The method provides a practical application of wNMR as an analytical tool to study and provide higher quality and more efficient multiphase mixtures.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: February 27, 2024
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: Yihua (Bruce) Yu, Marc B. Taraban
  • Publication number: 20240027380
    Abstract: Methods for non-invasively identifying substandard or counterfeit products, e.g., vaccines, using nuclear magnetic resonance. The methods provide manufacturers with new approaches to identify parameters to assist users with the identification of substandard or counterfeit products.
    Type: Application
    Filed: July 21, 2023
    Publication date: January 25, 2024
    Inventors: Yihua (Bruce) YU, Marc TARABAN, Katharine T. BRIGGS
  • Publication number: 20230194447
    Abstract: A method of using the transverse relaxation rate (R2) of solvent NMR signal to noninvasively assess alum-containing products such as vaccines. This technique can be used for quality control in vaccine manufacturing (e.g., fill-finish step) to determine the evenness of alum filling level as well as extent of alum particle sedimentation in filled and sealed products.
    Type: Application
    Filed: February 16, 2023
    Publication date: June 22, 2023
    Inventors: Yihua (Bruce) YU, Marc TARABAN, Christopher FOX
  • Publication number: 20230152256
    Abstract: A method of using the transverse relaxation rate (R2) of solvent NMR signal to detect filling errors of an alum-containing product in real-time in-line during manufacturing, for example during a fill-finish unit operation. This technique can be used for quality control in vaccine manufacturing to ensure the delivery of the correct concentration of alum-containing product to the product container such as a vial or pre-filled syringe.
    Type: Application
    Filed: January 3, 2023
    Publication date: May 18, 2023
    Inventors: Yihua (Bruce) YU, Marc B. TARABAN
  • Patent number: 11585770
    Abstract: A method of using the transverse relaxation rate (R2) of solvent NMR signal to noninvasively assess alum-containing products such as vaccines. This technique can be used for quality control in vaccine manufacturing (e.g., fill-finish step) to determine the evenness of alum filling level as well as extent of alum particle sedimentation in filled and sealed products.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: February 21, 2023
    Assignees: UNIVERSITY OF MARYLAND, BALTIMORE, ACCESS TO ADVANCED HEALTH INSTITUTE
    Inventors: Yihua (Bruce) Yu, Marc Taraban, Christopher Fox
  • Patent number: 11543371
    Abstract: A method of using the transverse relaxation rate (R2) of solvent NMR signal to detect filling errors of an alum-containing product in real-time in-line during manufacturing, for example during a fill-finish unit operation. This technique can be used for quality control in vaccine manufacturing to ensure the delivery of the correct concentration of alum-containing product to the product container such as a vial or pre-filled syringe.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: January 3, 2023
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: Yihua (Bruce) Yu, Marc B. Taraban
  • Publication number: 20220317073
    Abstract: A method of using the relaxation rate (R1 and/or R2) of solvent NMR signal to noninvasively assess whether viral capsids in a capsid preparation are full or empty, and the percentage of full capsids if the vial contains a mixture of full and empty capsids. The method can simply, rapidly, and non-invasively prove the safety and potency of the capsid preparation and thus whether the capsid preparation can be approved for clinical use, without requiring any sample preparation or reagent addition.
    Type: Application
    Filed: June 17, 2022
    Publication date: October 6, 2022
    Inventors: Yihua (Bruce) YU, Marc TARABAN
  • Publication number: 20220163468
    Abstract: A method of using the relaxation rate (R1 and/or R2) of solvent NMR signal to invasively or noninvasively assess whether vaccines and other aqueous-based pharmaceutical products have been frozen during transport and/or storage.
    Type: Application
    Filed: March 11, 2020
    Publication date: May 26, 2022
    Applicant: University of Maryland, Baltimore
    Inventors: Yihua Bruce YU, Marc B. TARABAN, Katharine T. BRIGGS
  • Publication number: 20220057464
    Abstract: Provided herein are methods for using water proton transverse relaxation rate R2(T) to monitor in real time the sedimentation process of multiphase mixtures such as drug products and drug substances. Using wNMR (water proton nuclear magnetic resonance), valuable information can be obtained regarding sedimentation rate, dynamics of supernatant and sediment buildup, and sedimentation volume ratio (SVR) reflecting the compactness of formed sediment in such mixtures. The results described herein demonstrate the practical applicability of wNMR as an analytical tool to study and provide higher quality and more efficient multiphase mixtures.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 24, 2022
    Inventors: Yihua (Bruce) YU, Marc B. TARABAN
  • Publication number: 20210325324
    Abstract: A method of using the relaxation rate (R1 and/or R2) of solvent NMR signal to assess whether drug products have undergone substantial chemical degradation during manufacturing, transport and/or storage. The monitoring can be performed under both static and flow conditions, in real-time and in a contact-free manner.
    Type: Application
    Filed: March 19, 2021
    Publication date: October 21, 2021
    Inventors: Yihua (Bruce) YU, Marc B. TARABAN, Katharine T. BRIGGS
  • Patent number: 11119061
    Abstract: The present invention generally relates to a method of using NMR relaxation rates (R2) of water molecules as an indicator of the extent of aggregation of biopharmaceutical formulations. The biopharmaceutical can be evaluated nondestructively without the vial or container being opened or protective seal compromised (i.e., broken). The method is applicable to all biopharmaceuticals and the water signal obtained by magnetic resonance relaxometry is very strong and sensitive because water is used as the solvent and is present in high (>90%) concentrations in every biopharmaceutical formulation.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: September 14, 2021
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: Yihua Bruce Yu, Marc Taraban, Yue Feng
  • Publication number: 20210010962
    Abstract: A method of using the transverse relaxation rate (R2) of solvent NMR signal to detect filling errors of an alum-containing product in real-time in-line during manufacturing, for example during a fill-finish unit operation. This technique can be used for quality control in vaccine manufacturing to ensure the delivery of the correct concentration of alum-containing product to the product container such as a vial or pre-filled syringe.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 14, 2021
    Inventors: Yihua (Bruce) YU, Marc B. TARABAN
  • Publication number: 20210010961
    Abstract: The present invention generally relates to a method of using NMR relaxation rates (R2) of water molecules as an indicator of the extent of aggregation of biopharmaceutical formulations. The biopharmaceutical can be evaluated nondestructively without the vial or container being opened or protective seal compromised (i.e., broken). The method is applicable to all biopharmaceuticals and the water signal obtained by magnetic resonance relaxometry is very strong and sensitive because water is used as the solvent and is present in high (>90%) concentrations in every biopharmaceutical formulation.
    Type: Application
    Filed: July 27, 2020
    Publication date: January 14, 2021
    Inventors: Yihua Bruce YU, Marc Taraban, Yue Feng
  • Patent number: 10724974
    Abstract: The present invention generally relates to a method of using NMR relaxation rates (R2) of water molecules as an indicator of the extent of aggregation of biopharmaceutical formulations. The biopharmaceutical can be evaluated nondestructively without the vial or container being opened or protective seal compromised (i.e., broken). The method is applicable to all biopharmaceuticals and the water signal obtained by magnetic resonance relaxometry is very strong and sensitive because water is used as the solvent and is present in high (>90%) concentrations in every biopharmaceutical formulation.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: July 28, 2020
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: Yihua Bruce Yu, Marc Taraban, Yue Feng
  • Publication number: 20200110046
    Abstract: A method of using the transverse relaxation rate (R2) of solvent NMR signal to noninvasively assess alum-containing products such as vaccines. This technique can be used for quality control in vaccine manufacturing (e.g., fill-finish step) to determine the evenness of alum filling level as well as extent of alum particle sedimentation in filled and sealed products.
    Type: Application
    Filed: October 4, 2019
    Publication date: April 9, 2020
    Inventors: Yihua (Bruce) YU, Marc TARABAN, Christopher FOX
  • Publication number: 20200080950
    Abstract: The present invention generally relates to a method of using NMR relaxation rates (R2) of water molecules as an indicator of the extent of aggregation of biopharmaceutical formulations. The biopharmaceutical can be evaluated nondestructively without the vial or container being opened or protective seal compromised (i.e., broken). The method is applicable to all biopharmaceuticals and the water signal obtained by magnetic resonance relaxometry is very strong and sensitive because water is used as the solvent and is present in high (>90%) concentrations in every biopharmaceutical formulation.
    Type: Application
    Filed: November 13, 2019
    Publication date: March 12, 2020
    Inventors: Yihua Bruce YU, Marc Taraban, Yue Feng
  • Patent number: 10514347
    Abstract: The present invention generally relates to a method of using NMR relaxation rates (R2) of water molecules as an indicator of the extent of aggregation of biopharmaceutical formulations. The biopharmaceutical can be evaluated nondestructively without the vial or container being opened or protective seal compromised (i.e., broken). The method is applicable to all biopharmaceuticals and the water signal obtained by magnetic resonance relaxometry is very strong and sensitive because water is used as the solvent and is present in high (>90%) concentrations in every biopharmaceutical formulation.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: December 24, 2019
    Assignee: University of Maryland, Baltimore
    Inventors: Yihua Bruce Yu, Marc Taraban, Yue Feng
  • Publication number: 20190293579
    Abstract: The present invention generally relates to a method of using NMR relaxation rates (R2) of water molecules as an indicator of the extent of aggregation of biopharmaceutical formulations. The biopharmaceutical can be evaluated nondestructively without the vial or container being opened or protective seal compromised (i.e., broken). The method is applicable to all biopharmaceuticals and the water signal obtained by magnetic resonance relaxometry is very strong and sensitive because water is used as the solvent and is present in high (>90%) concentrations in every biopharmaceutical formulation.
    Type: Application
    Filed: March 29, 2019
    Publication date: September 26, 2019
    Inventors: Yihua Bruce YU, Marc Taraban, Yue Feng