Patents by Inventor Ravi Chari

Ravi Chari 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: 12729244
    Abstract: Provided are formulations of anti-CD38 antibodies suitable for subcutaneous administration to a subject in need thereof. The formulations include a high concentration of antibody, a viscosity lowering agent, a stabilizing agent, a buffering agent and a surfactant. In certain embodiments, the viscosity of the solution is at most 25 mPa·s, and the pH of the solution is 5.9 to 7.0. In certain embodiments, the anti-CD38 antibody is isatuximab. The formulations will find use in treating CD38+ hematological malignancies, including multiple myeloma, as well as autoimmune and inflammatory diseases, in humans.
    Type: Grant
    Filed: October 21, 2025
    Date of Patent: September 8, 2026
    Assignee: SANOFI-AVENTIS U.S. LLC
    Inventors: Sylvain Huille, Thomas Ballet, Kiran Bangari, Ravi Chari, Bernardo Perez-Ramirez, Filipe Vasco
  • Publication number: 20260207769
    Abstract: The present disclosure provides an antibody-drug conjugate (ADC) having an antibody, antigen-binding fragment thereof, or cell-penetrating fragment thereof; a linker; and a payload moiety. Compositions including the ADC and methods of using the ADC are also provided.
    Type: Application
    Filed: December 27, 2023
    Publication date: July 23, 2026
    Inventors: Peter GLAZER, Elias QUIJANO, Ravi CHARI, Dale LUDWIG, Venugopalareddy BOMMIREDDYVENKATA
  • Patent number: 12655225
    Abstract: Provided are formulations of anti-CD38 antibodies suitable for subcutaneous administration to a subject in need thereof. The formulations include a high concentration of antibody, a viscosity lowering agent, a stabilizing agent, a buffering agent and a surfactant. In certain embodiments, the viscosity of the solution is at most 25 mPa·s, and the pH of the solution is 5.9 to 7.0. In certain embodiments, the anti-CD38 antibody is isatuximab. The formulations will find use in treating CD38+ hematological malignancies, including multiple myeloma, as well as autoimmune and inflammatory diseases, in humans.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: June 16, 2026
    Assignee: SANOFI-AVENTIS U.S. LLC
    Inventors: Sylvain Huille, Thomas Ballet, Kiran Bangari, Ravi Chari, Bernardo Perez-Ramirez, Filipe Vasco
  • Publication number: 20260042861
    Abstract: Provided are formulations of anti-CD38 antibodies suitable for subcutaneous administration to a subject in need thereof. The formulations include a high concentration of antibody, a viscosity lowering agent, a stabilizing agent, a buffering agent and a surfactant. In certain embodiments, the viscosity of the solution is at most 25 mPa·s, and the pH of the solution is 5.9 to 7.0. In certain embodiments, the anti-CD38 antibody is isatuximab. The formulations will find use in treating CD38+ hematological malignancies, including multiple myeloma, as well as autoimmune and inflammatory diseases, in humans.
    Type: Application
    Filed: October 21, 2025
    Publication date: February 12, 2026
    Inventors: Sylvain Huille, Thomas Ballet, Kiran Bangari, Ravi Chari, Bernardo Perez-Ramirez, Filipe Vasco
  • Publication number: 20250387499
    Abstract: The present disclosure relates to ligand-payload conjugates, and compositions and use thereof for treating diseases, disorders, or conditions, such as cancers, autoimmune diseases, or infectious diseases. The present disclosure also provides methods of synthesizing ligand-payload conjugates, and related intermediates.
    Type: Application
    Filed: March 30, 2023
    Publication date: December 25, 2025
    Applicant: Pyxis Oncology, Inc.
    Inventors: Ravi Chari, Arnab Ghatak, David Pedersen, Jianwen Feng, Chuan Shen
  • Patent number: 12449198
    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 26, 2024
    Date of Patent: October 21, 2025
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Xiaolin Tang, Mary Kleppe, Ravi Chari, Franco Tzul
  • 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
  • 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
  • Publication number: 20220403052
    Abstract: Disclosed herein are multivalent and multispecific binding proteins, methods of making the binding proteins, and their uses in the diagnosis, monitoring, inhibition, prevention and/or treatment of cancers, tumors, and/or other angiogenesis-dependent diseases diseases characterized by aberrant DLL4 and/or VEGF expression or activity.
    Type: Application
    Filed: January 28, 2022
    Publication date: December 22, 2022
    Inventors: Jijie Gu, Dominic J. Ambrosi, Susan E. Lappe, Yingchun Li, Jonathan A. Hickson, Deanna L. Haasch, Supriya Gupta, Ravi Chari, Camellia Zamiri, Louie Naumovski, Xianhua Cao
  • 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: 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
  • Publication number: 20210188996
    Abstract: Provided are formulations of anti-CD38 antibodies suitable for subcutaneous administration to a subject in need thereof. The formulations include a high concentration of antibody, a viscosity lowering agent, a stabilizing agent, a buffering agent and a surfactant. In certain embodiments, the viscosity of the solution is at most 25 mPa·s, and the pH of the solution is 5.9 to 7.0. In certain embodiments, the anti-CD38 antibody is isatuximab. The formulations will find use in treating CD38+ hematological malignancies, including multiple myeloma, as well as autoimmune and inflammatory diseases, in humans.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 24, 2021
    Inventors: Sylvain Huille, Thomas Ballet, Kiran Bangari, Ravi Chari, Bernardo Perez-Ramirez, Filipe Vasco
  • Publication number: 20200385456
    Abstract: The invention provides stable aqueous formulations comprising an Aqueous Stable Dual Variable Domain Immunoglobulin (AS-DVD-Ig) protein. The invention also provides stable lyophilized formulations comprising a Lyophilized Stable Dual Variable Domain Immunoglobulin (LS-DVD-Ig) protein.
    Type: Application
    Filed: January 17, 2020
    Publication date: December 10, 2020
    Inventors: Michael Siedler, Vineet Kumar, Ravi Chari, Sonal Saluja, Vishwesh Patil
  • Publication number: 20190031783
    Abstract: Disclosed herein are multivalent and multispecific binding proteins, methods of making the binding proteins, and their uses in the diagnosis, monitoring, inhibition, prevention and/or treatment of cancers, tumors, and/or other angiogenesis-dependent diseases diseases characterized by aberrant DLL4 and/or VEGF expression or activity.
    Type: Application
    Filed: March 7, 2018
    Publication date: January 31, 2019
    Inventors: Jijie Gu, Dominic J. Ambrosi, Susan E. Lappe, Yingchun Li, Jonathan A. Hickson, Deanna L. Haasch, Supriya Gupta, Ravi Chari, Camellia Zamiri, Louie Naumovski, Xianhua Cao
  • Publication number: 20180362629
    Abstract: The present disclosure encompasses NGF binding proteins, specifically to antibodies that are chimeric, CDR grafted and caninized antibodies, and methods of making and uses thereof. The antibodies, or antibody portions, of the disclosure are useful for detecting NGF and for inhibiting NGF activity, e.g., in a mammal subject suffering from a disorder in which NGF activity is detrimental.
    Type: Application
    Filed: August 31, 2018
    Publication date: December 20, 2018
    Inventors: Susan E. Lacy, Jeffrey A. Barbon, Meha Chhaya, Emma Fung, Charles W. Hutchins, Diane M. Lang, Eve H. Barlow, Mary Leddy, Ravi Chari
  • Patent number: 10125192
    Abstract: The present disclosure encompasses NGF binding proteins, specifically to antibodies that are chimeric, CDR grafted and canonized antibodies, and methods of making and uses thereof. The antibodies, or antibody portions, of the disclosure are useful for detecting NGF and for inhibiting NGF activity, e.g., in a mammal subject suffering from a disorder in which NGF activity is detrimental.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: November 13, 2018
    Assignee: ZOETIS BELGIUM S.A.
    Inventors: Susan E. Lacy, Jeffrey A. Barbon, Meha Chhaya, Emma Fung, Charles W. Hutchins, Diane M. Lang, Eve H. Barlow, Mary Leddy, Ravi Chari
  • Patent number: 10093725
    Abstract: The present disclosure encompasses NGF binding proteins, specifically to antibodies that are chimeric, CDR grafted and canonized antibodies, and methods of making and uses thereof. The antibodies, or antibody portions, of the disclosure are useful for detecting NGF and for inhibiting NGF activity, e.g., in a mammal subject suffering from a disorder in which NGF activity is detrimental.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: October 9, 2018
    Assignee: ZOETIS BELGIUM S.A.
    Inventors: Susan E. Lacy, Jeffrey A. Barbon, Meha Chhaya, Emma Fung, Charles W. Hutchins, Diane M. Lang, Eve H. Barlow, Mary Leddy, Ravi Chari