Patents by Inventor Stefan Ewert

Stefan Ewert 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: 11932681
    Abstract: The present invention relates to anti-HBsAg antibodies, antibody fragments, and their uses for the prevention and treatment of hepatitis B virus infection and associated diseases.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: March 19, 2024
    Assignee: Novartis AG
    Inventors: Stefan Ewert, Meghan Marie Holdorf, Elisabetta Traggiai
  • Publication number: 20240067750
    Abstract: The present invention relates to monoclonal antibodies and antigen binding fragments thereof that bind to human Factor XI and activated Factor XI (“Factor XIa”), and pharmaceutical compositions and methods of treatment comprising the same.
    Type: Application
    Filed: January 20, 2023
    Publication date: February 29, 2024
    Inventors: Jorg EDER, Stefan EWERT, Ulrich HASSIEPEN, Yasser KHDER, Lorenz MAYR, Samu MELKKO, Nikolaus SCHIERING
  • Publication number: 20220025070
    Abstract: The present disclosure relates to reversal agents, which specifically bind to anti-Factor XI and/or anti-Factor XIa antibodies (e.g., NOV1401), and reverse one or more anticoagulant effects of the anti-Factor XI and/or anti-Factor XIa antibodies (e.g., NOV1401), as well as to methods of use thereof, such as methods for reversing anticoagulant effects of such anti-Factor XI and/or anti-Factor XIa antibodies (e.g., NOV1401), and to related methods for managing bleeding or bleeding risks.
    Type: Application
    Filed: December 17, 2019
    Publication date: January 27, 2022
    Inventors: Stefan EWERT, Andrew GREEN, Alexander Wolfgang KOCH
  • Publication number: 20210221871
    Abstract: The present invention relates to anti-HBsAg antibodies, antibody fragments, and their uses for the prevention and treatment of hepatitis B virus infection and associated diseases.
    Type: Application
    Filed: May 30, 2019
    Publication date: July 22, 2021
    Inventors: Stefan EWERT, Meghan Marie HOLDORF, Elisabetta TRAGGIAI
  • Publication number: 20200317816
    Abstract: The present disclosure relates to reversal agents, which specifically bind to anti-Factor XI and/or anti-Factor XIa antibodies, and reverse one or more anticoagulant effects of the anti-Factor XI and/or anti-Factor XIa antibodies, as well as to methods of use thereof, such as methods for reversing anticoagulant effects of such anti-Factor XI and/or anti-Factor XIa antibodies, and to related methods for managing bleeding or bleeding risks.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 8, 2020
    Inventors: Stefan Ewert, Yasser KHDER, Alexander KOCH
  • Publication number: 20200308301
    Abstract: The present disclosure relates to reversal agents, which specifically bind to anti-Factor XI and/or anti-Factor XIa antibodies, and reverse one or more anticoagulant effects of the anti-Factor XI and/or anti-Factor XIa antibodies, as well as to methods of use thereof, such as methods for reversing anticoagulant effects of such anti-Factor XI and/or anti-Factor XIa antibodies, and to related methods for managing bleeding or bleeding risks.
    Type: Application
    Filed: November 20, 2018
    Publication date: October 1, 2020
    Inventors: Stefan EWERT, Alexander Wolfgang KOCH
  • Publication number: 20200165322
    Abstract: Compositions are provided, which can be used as frameworks for the creation of very stable and soluble single-chain Fv antibody fragments. These frameworks have been selected for intracellular performance and are thus ideally suited for the creation of scFv antibody fragments or scFv antibody libraries for applications where stability and solubility are limiting factors for the performance of antibody fragments, such as in the reducing environment of a cell. Such frameworks can also be used to identify highly conserved residues and consensus sequences which demonstrate enhanced solubility and stability.
    Type: Application
    Filed: December 16, 2019
    Publication date: May 28, 2020
    Inventors: Kathrin Tissot, Stefan Ewert, Adrian Auf Der Maur, Alcide Barberis, Dominik Escher
  • Patent number: 10647780
    Abstract: The present disclosure relates to reversal agents, which specifically bind to anti-Factor XI and/or anti-Factor XIa antibodies, and reverse one or more anticoagulant effects of the anti-Factor XI and/or anti-Factor XIa antibodies, as well as to methods of use thereof, such as methods for reversing anticoagulant effects of such anti-Factor XI and/or anti-Factor XIa antibodies, and to related methods for managing bleeding or bleeding risks.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: May 12, 2020
    Assignee: Novartis AG
    Inventors: Stefan Ewert, Yasser Khder, Alexander Koch
  • Publication number: 20200115468
    Abstract: The present invention relates to monoclonal antibodies and antigen binding fragments thereof that bind to human Factor XI and activated Factor XI (“Factor XIa”), and pharmaceutical compositions and methods of treatment comprising the same.
    Type: Application
    Filed: September 24, 2019
    Publication date: April 16, 2020
    Inventors: Jorg EDER, Stefan EWERT, Ulrich HASSIEPEN, Yasser KHDER, Lorenz MAYR, Samu MELKKO, Nikolaus SCHIERING
  • Patent number: 10570190
    Abstract: Compositions are provided, which can be used as frameworks for the creation of very stable and soluble single-chain Fv antibody fragments. These frameworks have been selected for intracellular performance and are thus ideally suited for the creation of scFv antibody fragments or scFv antibody libraries for applications where stability and solubility are limiting factors for the performance of antibody fragments, such as in the reducing environment of a cell. Such frameworks can also be used to identify highly conserved residues and consensus sequences which demonstrate enhanced solubility and stability.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: February 25, 2020
    Assignee: Novartis AG
    Inventors: Kathrin Tissot, Stefan Ewert, Adrian Auf Der Maur, Alcide Barberis, Dominik Escher
  • Patent number: 10465011
    Abstract: The present invention relates to monoclonal antibodies and antigen binding fragments thereof that bind to human Factor XI and activated Factor XI (“Factor XIa”), and pharmaceutical compositions and methods of treatment comprising the same.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: November 5, 2019
    Assignee: Novartis AG
    Inventors: Jorg Eder, Stefan Ewert, Ulrich Hassiepen, Yasser Khder, Lorenz Mayr, Samu Melkko, Nikolaus Schiering
  • Publication number: 20190119361
    Abstract: Compositions are provided, which can be used as frameworks for the creation of very stable and soluble single-chain Fv antibody fragments. These frameworks have been selected for intracellular performance and are thus ideally suited for the creation of scFv antibody fragments or scFv antibody libraries for applications where stability and solubility are limiting factors for the performance of antibody fragments, such as in the reducing environment of a cell. Such frameworks can also be used to identify highly conserved residues and consensus sequences which demonstrate enhanced solubility and stability.
    Type: Application
    Filed: October 30, 2018
    Publication date: April 25, 2019
    Inventors: Kathrin Tissot, Stefan Ewert, Adrian Auf Der Maur, Alcide Barberis, Dominik Escher
  • Publication number: 20180355056
    Abstract: The present invention relates to monoclonal antibodies and antigen binding fragments thereof that bind to human Factor XI and activated Factor XI (“Factor XIa”), and pharmaceutical compositions and methods of treatment comprising the same.
    Type: Application
    Filed: June 24, 2016
    Publication date: December 13, 2018
    Applicant: NOVARTIS AG
    Inventors: Jorg EDER, Stefan EWERT, Ulrich HASSIEPEN, Yasser KHDER, Lorenz MAYR, Samu MELKKO, Nikolaus SCHIERING
  • Patent number: 10125186
    Abstract: Compositions are provided, which can be used as frameworks for the creation of very stable and soluble single-chain Fv antibody fragments. These frameworks have been selected for intracellular performance and are thus ideally suited for the creation of scFv antibody fragments or scFv antibody libraries for applications where stability and solubility are limiting factors for the performance of antibody fragments, such as in the reducing environment of a cell. Such frameworks can also be used to identify highly conserved residues and consensus sequences which demonstrate enhanced solubility and stability.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: November 13, 2018
    Assignee: ESBATech, an Alcon Biomedical Research Unit LLC
    Inventors: Kathrin Tissot, Stefan Ewert, Adrian Auf Der Maur, Alcide Barberis, Dominik Escher
  • Publication number: 20180022825
    Abstract: The present disclosure relates to reversal agents, which specifically bind to anti-Factor XI and/or anti-Factor XIa antibodies, and reverse one or more anticoagulant effects of the anti-Factor XI and/or anti-Factor XIa antibodies, as well as to methods of use thereof, such as methods for reversing anticoagulant effects of such anti-Factor XI and/or anti-Factor XIa antibodies, and to related methods for managing bleeding or bleeding risks.
    Type: Application
    Filed: May 24, 2017
    Publication date: January 25, 2018
    Inventors: Stefan EWERT, Yasser KHDER, Alexander KOCH
  • Publication number: 20170198040
    Abstract: The present invention relates to isolated antibodies and antigen-binding fragments thereof which selectively bind human CD32b. Also provided herein are compositions comprising the antibodies or antigen-binding fragments thereof, methods of using the antibodies or antigen-binding fragments thereof, and methods of making the antibodies or antigen-binding fragments thereof.
    Type: Application
    Filed: December 16, 2016
    Publication date: July 13, 2017
    Applicant: Novartis AG
    Inventors: Nicole BALKE, Thomas CALZASCIA, Stefan EWERT, Alan HARRIS, Heather Adkins HUET, Isabelle ISNARDI, Haihui LU, Matthew John MEYER, Nicholas WILSON, Fangmin WU
  • Patent number: 9683034
    Abstract: The present invention relates to particularly stable and soluble scFv antibodies and Fab fragments specific for TNF?, which comprise specific light chain and heavy chain sequences that are optimized for stability, solubility, in vitro and in vivo binding of TNF?, and low immunogenicity. Said antibodies are designed for the diagnosis and/or treatment of TNF?-related disorders. The nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: June 20, 2017
    Assignee: ESBATech, an Alcon Biomedical Research Unit LLC
    Inventors: Stefan Ewert, David Urech, Adrian Auf Der Maur, Alcide Barberis, Peter Lichtlen
  • Publication number: 20170107272
    Abstract: Compositions are provided, which can be used as frameworks for the creation of very stable and soluble single-chain Fv antibody fragments. These frameworks have been selected for intracellular performance and are thus ideally suited for the creation of scFv antibody fragments or scFv antibody libraries for applications where stability and solubility are limiting factors for the performance of antibody fragments, such as in the reducing environment of a cell. Such frameworks can also be used to identify highly conserved residues and consensus sequences which demonstrate enhanced solubility and stability.
    Type: Application
    Filed: November 1, 2016
    Publication date: April 20, 2017
    Inventors: Kathrin Tissot, Stefan Ewert, Adrian Auf Der Maur, Alcide Barberis, Dominik Escher
  • Publication number: 20170022292
    Abstract: The present invention relates to monoclonal antibodies and antigen binding fragments thereof that bind to human Factor XI and activated Factor XI (“Factor XIa”), and pharmaceutical compositions and methods of treatment comprising the same.
    Type: Application
    Filed: June 24, 2016
    Publication date: January 26, 2017
    Applicant: NOVARTIS AG
    Inventors: Jorg EDER, Stefan EWERT, Ulrich HASSIEPEN, Yasser KHDER, Lorenz MAYR, Samu MELKKO, Nikolaus SCHIERING
  • Patent number: 9518108
    Abstract: Compositions are provided, which can be used as frameworks for the creation of very stable and soluble single-chain Fv antibody fragments. These frameworks have been selected for intracellular performance and are thus ideally suited for the creation of scFv antibody fragments or scFv antibody libraries for applications where stability and solubility are limiting factors for the performance of antibody fragments, such as in the reducing environment of a cell. Such frameworks can also be used to identify highly conserved residues and consensus sequences which demonstrate enhanced solubility and stability.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: December 13, 2016
    Assignee: ESBATech, an Alcon Biomedical Research Unit LLC
    Inventors: Kathrin Tissot, Stefan Ewert, Adrian Auf Der Maur, Alcide Barberis, Dominik Escher