Patents by Inventor Elaine T. Sewell

Elaine T. Sewell 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: 11939392
    Abstract: The present disclosure relates to protein molecules that specifically bind to CD123, which may have at least one humanized or human CD123-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to CD123 may have a second binding domain that binds to another target. In one embodiment, multi-specific polypeptide molecules bind both CD123-expressing cells and the T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the CD123-binding polypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: March 26, 2024
    Assignee: Aptevo Research and Development LLC
    Inventors: Gabriela Hernandez-Hoyos, Elaine T. Sewell, Catherine J. McMahan, David Bienvenue, John W. Blankenship, Danielle Mitchell, Peter Pavlik
  • Publication number: 20220363773
    Abstract: The present disclosure relates to protein molecules that specifically bind to CD123, which may have at least one humanized or human CD123-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to CD123 may have a second binding domain that binds to another target. In one embodiment, multi-specific polypeptide molecules bind both CD123-expressing cells and the T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the CD123-binding polypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.
    Type: Application
    Filed: December 21, 2021
    Publication date: November 17, 2022
    Inventors: Gabriela HERNANDEZ-HOYOS, Elaine T. SEWELL, Catherine J. MCMAHAN, David BIENVENUE, John W. BLANKENSHIP, Danielle MITCHELL, Peter PAVLIK
  • Patent number: 11242400
    Abstract: The present disclosure relates to protein molecules that specifically bind to CD123, which may have at least one humanized or human CD123-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to CD123 may have a second binding domain that binds to another target. In one embodiment, multi-specific polypeptide molecules bind both CD123-expressing cells and the T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the CD123-binding polypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: February 8, 2022
    Assignee: Aptevo Research and Development LLC
    Inventors: Gabriela Hernandez-Hoyos, Elaine T. Sewell, Catherine J. McMahan, David Bienvenue, John W. Blankenship, Danielle Mitchell, Peter Pavlik
  • Patent number: 10676533
    Abstract: The present disclosure relates to protein molecules that specifically bind to CD123, which may have at least one humanized or human CD123-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to CD123 may have a second binding domain that binds to another target. In one embodiment, multi-specific polypeptide molecules bind both CD123-expressing cells and the T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the CD123-binding polypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 9, 2020
    Assignee: Aptevo Research and Development LLC
    Inventors: Gabriela Hernandez-Hoyos, Elaine T. Sewell, Catherine J. McMahan, David Bienvenue, John W. Blankenship, Danielle Mitchell, Peter Pavlik
  • Publication number: 20200165346
    Abstract: The present disclosure relates to protein molecules that specifically bind to CD123, which may have at least one humanized or human CD123-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to CD123 may have a second binding domain that binds to another target. In one embodiment, multi-specific polypeptide molecules bind both CD123-expressing cells and the T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the CD123-binding polypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.
    Type: Application
    Filed: September 21, 2017
    Publication date: May 28, 2020
    Inventors: Gabriela Hernandez-Hoyos, Elaine T. Sewell, Catherine J. McMahan, David Bienvenue, John W. Blankenship, Danielle Mitchell, Peter Pavlik
  • Publication number: 20190071513
    Abstract: The present disclosure relates to protein molecules that specifically bind to CD123, which may have at least one humanized or human CD123-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to CD123 may have a second binding domain that binds to another target. In one embodiment, multi-specific polypeptide molecules bind both CD123-expressing cells and the T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the CD123-binding polypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.
    Type: Application
    Filed: March 22, 2018
    Publication date: March 7, 2019
    Inventors: Gabriela Hernandez-Hoyos, Elaine T. Sewell, Catherine J. McMahan, David Bienvenue, John W. Blankenship, Danielle Mitchell, Peter Pavlik