Patents by Inventor Chad A. Cowan

Chad A. Cowan 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: 20230323288
    Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein do not express one or more MHC-I and MHC-II human leukocyte antigens. Similarly, in certain embodiments, the universal donor stem cells disclosed herein do not express one or more human leukocyte antigens (e.g., HLA-A, HLA-B and/or HLA-C) corresponding to MHC-I and MHC-II human leukocyte antigens, thereby rendering such cells hypoimmunogenic.
    Type: Application
    Filed: November 23, 2022
    Publication date: October 12, 2023
    Inventors: Torsten B. Meissner, Leonardo M.R. Ferreira, Jack L. Strominger, Chad A. Cowan
  • Publication number: 20230303968
    Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein do not express one or more MHC-I and MHC-II human leukocyte antigens. Similarly, in certain embodiments, the universal donor stem cells disclosed herein do not express one or more human leukocyte antigens (e.g., HLA-A, HLA-B and/or HLA-C) corresponding to MHC-I and MHC-II human leukocyte antigens, thereby rendering such cells hypoimmunogenic.
    Type: Application
    Filed: November 23, 2022
    Publication date: September 28, 2023
    Inventors: Torsten B. Meissner, Leonardo M.R. Ferreira, Jack L. Strominger, Chad A. Cowan
  • Publication number: 20230303969
    Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein do not express one or more MHC-I and MHC-II human leukocyte antigens. Similarly, in certain embodiments, the universal donor stem cells disclosed herein do not express one or more human leukocyte antigens (e.g., HLA-A, HLA-B and/or HLA-C) corresponding to MHC-I and MHC-II human leukocyte antigens, thereby rendering such cells hypoimmunogenic.
    Type: Application
    Filed: November 23, 2022
    Publication date: September 28, 2023
    Inventors: Torsten B. Meissner, Leonardo M.R. Ferreira, Jack L. Strominger, Chad A. Cowan
  • Patent number: 11618881
    Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein do not express one or more MHC-I and MHC-II human leukocyte antigens. Similarly, in certain embodiments, the universal donor stem cells disclosed herein do not express one or more human leukocyte antigens (e.g., HLA-A, HLA-B and/or HLA-C) corresponding to MHC-I and MHC-II human leukocyte antigens, thereby rendering such cells hypoimmunogenic.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: April 4, 2023
    Assignee: President and Fellows of Harvard College
    Inventors: Torsten B. Meissner, Leonardo M. R. Ferreira, Jack L. Strominger, Chad A. Cowan
  • Patent number: 11492591
    Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein do not express one or more MHC-I and MHC-II human leukocyte antigens. Similarly, in certain embodiments, the universal donor stem cells disclosed herein do not express one or more human leukocyte antigens (e.g., HLA-A, HLA-B and/or HLA-C) corresponding to MHC-I and MHC-II human leukocyte antigens, thereby rendering such cells hypoimmunogenic.
    Type: Grant
    Filed: October 9, 2021
    Date of Patent: November 8, 2022
    Assignee: President and Fellows of Harvard College
    Inventors: Torsten B. Meissner, Leonardo M. R. Ferreira, Jack L. Strominger, Chad A. Cowan
  • Publication number: 20220333119
    Abstract: Disclosed herein are methods, compositions, and kits for high efficiency, site-specific genomic editing of cells.
    Type: Application
    Filed: April 25, 2022
    Publication date: October 20, 2022
    Inventors: Kiran Musunuru, Chad A. Cowan, Derrick J. Rossi
  • Publication number: 20220267732
    Abstract: Disclosed herein are cells expressing DUX4 including stem cells, differentiated cells thereof, primary T cells, and chimeric antigen receptor T cells, as well as related methods of their use and generation. In some embodiments, the cells disclosed herein do not express one or more MHCI and/or MHC II human leukocyte antigens. In some embodiments, such cells possess immune evasion properties.
    Type: Application
    Filed: July 31, 2020
    Publication date: August 25, 2022
    Inventors: Chad A. Cowan, Ryan S. McQuade, Sonja Schrepfer
  • Publication number: 20220162554
    Abstract: Disclosed herein are modified primary human T cells and populations thereof comprising a genome in which the CTLA4, PD1, TCRA, TCRB, and/or B2M genes have been edited to generate an off-the-shelf universal CAR T cell from allogeneic healthy donors that can be administered to any patient while reducing or eliminating the risk of immune rejection or graft versus host disease, and which are not prone to T cell inhibition, and methods for allogeneic administration of such cells to reduce the likelihood that the cells will trigger a host immune response when the cells are administered to a subject in need of such cells.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 26, 2022
    Inventors: Torsten B. Meissner, Kabungo Y. Mulumba, Leonardo M.R. Ferreira, Chad A. Cowan
  • Publication number: 20220162555
    Abstract: Disclosed herein are modified primary human T cells and populations thereof comprising a genome in which the CTLA4, PD1, TCRA, TCRB, and/or B2M genes have been edited to generate an off-the-shelf universal CAR T cell from allogeneic healthy donors that can be administered to any patient while reducing or eliminating the risk of immune rejection or graft versus host disease, and which are not prone to T cell inhibition, and methods for allogeneic administration of such cells to reduce the likelihood that the cells will trigger a host immune response when the cells are administered to a subject in need of such cells.
    Type: Application
    Filed: December 2, 2021
    Publication date: May 26, 2022
    Inventors: Torsten B. Meissner, Kabungo Y. Mulumba, Leonardo M.R. Ferreira, Chad A. Cowan
  • Publication number: 20220112459
    Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein do not express one or more MHC-I and MHC-II human leukocyte antigens. Similarly, in certain embodiments, the universal donor stem cells disclosed herein do not express one or more human leukocyte antigens (e.g., HLA-A, HLA-B and/or HLA-C) corresponding to MHC-I and MHC-II human leukocyte antigens, thereby rendering such cells hypoimmunogenic.
    Type: Application
    Filed: October 9, 2021
    Publication date: April 14, 2022
    Inventors: Torsten B. Meissner, Leonardo M.R. Ferreira, Jack L. Strominger, Chad A. Cowan
  • Publication number: 20210285015
    Abstract: Disclosed herein are methods, compositions, and kits for high efficiency, site-specific genomic editing of cells for treating or preventing genetic blood disorders.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 16, 2021
    Inventors: Kiran Musunuru, Chad A. Cowan, Derrick J. Rossi
  • Publication number: 20210277423
    Abstract: Disclosed herein are methods, compositions, and kits for high efficiency, site-specific genomic editing of cells for treating or preventing genetic blood disorders.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 9, 2021
    Inventors: Kiran Musunuru, Chad A. Cowan, Derrick J. Rossi
  • Publication number: 20210274726
    Abstract: Disclosed herein are methods, compositions, and kits for high efficiency, site-specific genomic editing of cells for treating or preventing genetic blood disorders.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 9, 2021
    Inventors: Kiran Musunuru, Chad A. Cowan, Derrick J. Rossi
  • Publication number: 20210261916
    Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein do not express one or more MHC-I and MHC-II human leukocyte antigens. Similarly, in certain embodiments, the universal donor stem cells disclosed herein do not express one or more human leukocyte antigens (e.g., HLA-A, HLA-B and/or HLA-C) corresponding to MHC-I and MHC-II human leukocyte antigens, thereby rendering such cells hypoimmunogenic.
    Type: Application
    Filed: January 13, 2021
    Publication date: August 26, 2021
    Inventors: Torsten B. Meissner, Leonardo M.R. Ferreira, Jack L. Strominger, Chad A. Cowan
  • Publication number: 20210247385
    Abstract: This application relates to a method for identifying a drug candidate capable of increasing or decreasing barrier tissue integrity of endothelial cells. Moreover, this application relates to the use of a tight junction gene transcriptional reporter as a surrogate marker of transendothelial barrier integrity.
    Type: Application
    Filed: February 19, 2021
    Publication date: August 12, 2021
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Chad A. COWAN, Claas Aiko MEYER, Filip ROUDNICKY, Jitao David ZHANG
  • Publication number: 20210222122
    Abstract: This application relates to transcription factors capable of increasing transendothelial barrier integrity. Moreover, this application relates to the use of vectors encoding such transcription factors and cells comprising such vectors.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 22, 2021
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Chad A. COWAN, Claas Aiko MEYER, Filip ROUDNICKY
  • Publication number: 20210171903
    Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein have modulated expression of one or more MHC-I and MHC-II human leukocyte antigens and one or more tolerogenic factors.
    Type: Application
    Filed: June 22, 2020
    Publication date: June 10, 2021
    Inventors: Torsten B. Meissner, Leonardo M.R. Ferreira, Jack L. Strominger, Chad A. Cowan
  • Patent number: 10968426
    Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein do not express one or more MHC-I and MHC-II human leukocyte antigens. Similarly, in certain embodiments, the universal donor stem cells disclosed herein do not express one or more human leukocyte antigens (e.g., HLA-A, HLA-B and/or HLA-C) corresponding to MHC-I and MHC-II human leukocyte antigens, thereby rendering such cells hypoimmunogenic.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: April 6, 2021
    Assignee: President and Fellows of Harvard College
    Inventors: Torsten B. Meissner, Leonardo M. R. Ferreira, Jack L. Strominger, Chad A. Cowan
  • Publication number: 20200048659
    Abstract: Disclosed herein are methods, compositions, and kits for high efficiency, site-specific genomic editing of cells for treating or preventing genetic blood disorders.
    Type: Application
    Filed: February 18, 2019
    Publication date: February 13, 2020
    Inventors: Kiran Musunuru, Chad A. Cowan, Derrick J. Rossi
  • Publication number: 20190309259
    Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein do not express one or more MHC-I and MHC-II human leukocyte antigens. Similarly, in certain embodiments, the universal donor stem cells disclosed herein do not express one or more human leukocyte antigens (e.g., HLA-A, HLA-B and/or HLA-C) corresponding to MHC-I and MHC-II human leukocyte antigens, thereby rendering such cells hypoimmunogenic.
    Type: Application
    Filed: May 9, 2016
    Publication date: October 10, 2019
    Inventors: Torsten B. Meissner, Leonardo M.R. Ferreira, Jack L. Strominger, Chad A. Cowan