Patents by Inventor Franco Tzul

Franco Tzul 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: 20240393045
    Abstract: Lyophilization methods for preparing protein formulations for long-term storage at room temperature or improved stability at refrigeration storage are provided. Specifically, the present application provides lyophilization methods to obtain a target percentage of residual moisture of a lyophilized product, such as 3-5% residual moisture. The secondary drying of the lyophilization can be conducted under controlling rate of desorption under a temperature which is similar to the shelf temperature of the primary drying. Alternatively, the lyophilization can be conducted without a distinguished secondary drying step.
    Type: Application
    Filed: June 26, 2024
    Publication date: November 28, 2024
    Inventors: Xiaolin Tang, Mary Kleppe, Ravi Chari, Franco Tzul
  • Publication number: 20240352103
    Abstract: The present disclosure provides pharmaceutical formulations comprising one or more antibodies or antigen-binding fragments thereof that bind to the cat allergen Fel d1. The formulations may contain, in addition to the anti-Fel d1 antibody, a buffer, a thermal stabilizer, a viscosity reducer, and a surfactant. In one aspect, co-formulations comprising two anti-Fel d1 antibodies are provided that have acceptable stability and optimal viscosity.
    Type: Application
    Filed: February 29, 2024
    Publication date: October 24, 2024
    Inventors: Hunter Chen, Shalini Minocha, Ritwik Nandagiri, Saurav Sharma, Xiaolin Tang, Franco Tzul
  • Patent number: 12066246
    Abstract: Lyophilization methods for preparing protein formulations for long-term storage at room temperature or improved stability at refrigeration storage are provided. Specifically, the present application provides lyophilization methods to obtain a target percentage of residual moisture of a lyophilized product, such as 3-5% residual moisture. The secondary drying of the lyophilization can be conducted under controlling rate of desorption under a temperature which is similar to the shelf temperature of the primary drying. Alternatively, the lyophilization can be conducted without a distinguished secondary drying step.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: August 20, 2024
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Xiaolin Tang, Mary Kleppe, Ravi Chari, Franco Tzul
  • Publication number: 20230358470
    Abstract: Lyophilization methods for preparing protein formulations for long-term storage at room temperature or improved stability at refrigeration storage are provided. Specifically, the present application provides lyophilization methods to obtain a target percentage of residual moisture of a lyophilized product, such as 3-5% residual moisture. The secondary drying of the lyophilization can be conducted under controlling rate of desorption under a temperature which is similar to the shelf temperature of the primary drying. Alternatively, the lyophilization can be conducted without a distinguished secondary drying step.
    Type: Application
    Filed: June 9, 2023
    Publication date: November 9, 2023
    Inventors: Xiaolin Tang, Mary Kleppe, Ravi Chari, Franco Tzul
  • Patent number: 11713922
    Abstract: Lyophilization methods for preparing protein formulations for long-term storage at room temperature or improved stability at refrigeration storage are provided. Specifically, the present application provides lyophilization methods to obtain a target percentage of residual moisture of a lyophilized product, such as 3-5% residual moisture. The secondary drying of the lyophilization can be conducted under controlling rate of desorption under a temperature which is similar to the shelf temperature of the primary drying. Alternatively, the lyophilization can be conducted without a distinguished secondary drying step.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: August 1, 2023
    Assignee: Regeneran Pharmaceuticals, Inc.
    Inventors: Xiaolin Tang, Mary Kleppe, Ravi Chari, Franco Tzul
  • Publication number: 20230077563
    Abstract: Lyophilization methods for preparing protein formulations for long-term storage at room temperature or improved stability at refrigeration storage are provided. Specifically, the present application provides lyophilization methods to obtain a target percentage of residual moisture of a lyophilized product, such as 3-5% residual moisture. The secondary drying of the lyophilization can be conducted under controlling rate of desorption under a temperature which is similar to the shelf temperature of the primary drying. Alternatively, the lyophilization can be conducted without a distinguished secondary drying step.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 16, 2023
    Inventors: Xiaolin Tang, Mary Kleppe, Ravi Chari, Franco Tzul
  • Patent number: 11525629
    Abstract: Lyophilization methods for preparing protein formulations for long-term storage at room temperature or improved stability at refrigeration storage are provided. Specifically, the present application provides lyophilization methods to obtain a target percentage of residual moisture of a lyophilized product, such as 3-5% residual moisture. The secondary drying of the lyophilization can be conducted under controlling rate of desorption under a temperature which is similar to the shelf temperature of the primary drying. Alternatively, the lyophilization can be conducted without a distinguished secondary drying step.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: December 13, 2022
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Xiaolin Tang, Mary Kleppe, Ravi Chari, Franco Tzul
  • 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: 20210239396
    Abstract: Lyophilization methods for preparing protein formulations for long-term storage at room temperature or improved stability at refrigeration storage are provided. Specifically, the present application provides lyophilization methods to obtain a target percentage of residual moisture of a lyophilized product, such as 3-5% residual moisture. The secondary drying of the lyophilization can be conducted under controlling rate of desorption under a temperature which is similar to the shelf temperature of the primary drying. Alternatively, the lyophilization can be conducted without a distinguished secondary drying step.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 5, 2021
    Inventors: Xiaolin Tang, Mary Kleppe, Ravi Chari, Franco Tzul