Patents by Inventor Ivan Chan

Ivan Chan 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: 20260154448
    Abstract: Computing platforms, methods, and storage media for automated masking of personally identifiable information data are disclosed. Exemplary implementations may: receive input data comprising PII data associated with an input data label; automatically assign a masking process for the PII data based on a comparison of the input data label with stored masking parameters and based on a set of stored masking processes, the set of stored masking processes being mapped to a set of input data labels comprising the input data label associated with the PII data; automatically create and execute one or more masking jobs associated with the masking process; and generate masked PII data based on execution of the one or more masking jobs.
    Type: Application
    Filed: December 2, 2024
    Publication date: June 4, 2026
    Inventors: Senthil Muthukumaran SELVARAJ, Ivan CHAN, Srinivasan SARMAN, Aayush KATHURIA
  • Publication number: 20260154038
    Abstract: Computing platforms, methods, and storage media for managing input data compatibility with a software application are disclosed. Exemplary implementations may: receive an input file having input data content arranged according to a first data format; compare the input data content with expected data content in relation to which the software application has been configured; compare the first data format with an expected data format in relation to which the software application has been configured; in response to determination that the input data content substantially overlaps with the expected data content and the first data format differs from the expected data format: generate a rearranged input file by rearranging the input data content according to the expected data format; and provide the rearranged input file to the software application for processing. Exemplary implementations avoid processing incompatibility and errors while avoiding the need to reconfigure the application.
    Type: Application
    Filed: December 2, 2024
    Publication date: June 4, 2026
    Inventors: Senthil Muthukumaran SELVARAJ, Ivan CHAN, Srinivasan SARMAN, Aayush KATHURIA
  • Publication number: 20260154282
    Abstract: System, method and device for managing mainframe data. The method includes providing a data management platform coupled to a mainframe; providing access, via the data management platform, to a job engine, the job engine configured to execute at least one data job; generating a data model for a plurality of portions of the mainframe, each portion of the mainframe comprising a portion of the mainframe data provided in a corresponding format associated with operations executed by that portion of the plurality of mainframe portions; generating a data model job executable by the job engine, the data model job configured to use the data model to access specific ones of the plurality of mainframe portions based on queries received by the data management platform via the user interface; executing the data model job to access mainframe data from at least a plurality of the mainframe portions and process the accessed mainframe data to provide a readable format; and presenting the processed mainframe data.
    Type: Application
    Filed: November 29, 2024
    Publication date: June 4, 2026
    Applicant: The Toronto-Dominion Bank
    Inventors: Ivan CHAN, Julian SENGBOUPHA, Mariia KRAVCHENKO, Aayush KATHURIA
  • Publication number: 20260144872
    Abstract: Several embodiments of the methods and compositions disclosed herein relate to immune cells that are genetically edited, for example, using Crispr/Cas, to modulate, reduce or otherwise eliminate expression of one or more endogenous genes. In several embodiments, the edited cells are engineered to express a chimeric antigen receptor targeting a tumor antigen, for example CD19, ligands of the NKG2D receptor, CD70, and/or BCMA, among others. In several embodiments, the editing enhances one or more aspects of the efficacy of the immune cells in cellular immunotherapy including cytotoxicity (e.g., ADCC) and/or persistence.
    Type: Application
    Filed: August 2, 2023
    Publication date: May 28, 2026
    Inventors: James Barnaby Trager, Ivan Chan, Chao Guo
  • Publication number: 20260000761
    Abstract: Several embodiments of the methods and compositions disclosed herein relate to immune cells that are engineered to express chimeric antigen receptors as well as genetically edited or otherwise engineered enhance the persistence the cells in immunotherapy. In several embodiments, the cells are edited to knock out a target gene that encodes a protein involved in antigen processing and presentation by major histocompatibility complex class I molecules. In several embodiments, a mixture of immune cell types is used, optionally in allogeneic therapy. The engineering and editing of the cells, such as NK cells and/or T cells exhibit enhanced cytotoxicity and/or persistence, as well as reduced risk of reduced graft versus host, host versus graft, and graft versus graft effects.
    Type: Application
    Filed: January 18, 2023
    Publication date: January 1, 2026
    Inventors: James Barnaby Trager, Ivan Chan, Don-Hong Wang, Guangnan Li, Alexandra Leida Liana Lazetic, Chao Guo
  • Publication number: 20250339528
    Abstract: Several embodiments disclosed herein relate to methods and compositions for enhanced expansion of NK cells in culture, through the repeated co-culturing of NK cells with feeder cells and the selective use of stimulatory interleukins. In several embodiments, the methods utilize one or more soluble interleukins as culture media supplements at one or more time points during expansion of the NK cell, or other immune cell, which results in a highly expanded and highly cytotoxic population of cells, for use in, for example allogeneic cellular immunotherapy.
    Type: Application
    Filed: July 26, 2022
    Publication date: November 6, 2025
    Inventors: James Barnaby TRAGER, Alexandra Leida Liana LAZETIC, Ivan CHAN, Michael WHANG, Ming-Hong XIE, Hadia LEMAR, Anmol VOHRA, Ralph BRANDENBERGER
  • Publication number: 20250296970
    Abstract: Provided for herein in several embodiments are immune cell-based (e.g., natural killer (NK) cell) compositions comprising CD19-directed chimeric antigen receptors. In some, embodiments the anti-CD19 binder portion of the CAR is humanized. In several embodiments, the humanized anti-CD19 CAR expressing cells exhibit enhanced expression of the CAR as well as enhanced cytotoxicity and/or persistence. Several embodiments include methods of using of the anti-CD19 CAR expressing immune cells in immunotherapy.
    Type: Application
    Filed: March 14, 2025
    Publication date: September 25, 2025
    Inventors: James Barnaby Trager, Luxuan Guo Buren, Chao Guo, Mira Tohmé, Ivan Chan, Alexandra Leida Liana Lazetic
  • Patent number: 12398187
    Abstract: Provided for herein in several embodiments are immune cell-based (e.g., natural killer (NK) cell) compositions comprising CD19-directed chimeric antigen receptors. In some, embodiments the anti-CD19 binder portion of the CAR is humanized. In several embodiments, the humanized anti-CD19 CAR expressing cells exhibit enhanced expression of the CAR as well as enhanced cytotoxicity and/or persistence. Several embodiments include methods of using of the anti-CD19 CAR expressing immune cells in immunotherapy.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: August 26, 2025
    Assignee: Nkarta, Inc.
    Inventors: James Barnaby Trager, Luxuan Guo Buren, Chao Guo, Mira Tohmé, Ivan Chan, Alexandra Leida Liana Lazetic
  • Publication number: 20240360234
    Abstract: Several embodiments of the methods and compositions disclosed herein relate to immune cells that are engineered to express chimeric antigen receptors (CAR) and/or genetically modified to reduce potential side effects of cellular immunotherapy. Several embodiments relate to genetic modifications to the immune cells, such as Natural Killer (NK) cells, to reduce, substantially, reduce, or eliminate expression of a marker by the immune cells that would otherwise cause them to be self-targeted by the CAR. In several embodiments, the CAR targets CD70, and in some embodiments is used for renal cell carcinoma immunotherapy.
    Type: Application
    Filed: May 7, 2024
    Publication date: October 31, 2024
    Inventors: James Barnaby Trager, Alexandra Leida Liana Lazetic, Ivan Chan, Chao Guo, Katherine Jamboretz
  • Publication number: 20240335536
    Abstract: Several embodiments of the methods and compositions disclosed herein relate to immune cells that are engineered to Mexpress chimeric antigen receptors as well as genetically edited or otherwise engineered to alter the effectiveness with which another immune cell can target and induce cytotoxic effects on the engineered cells. In several embodiments, the methods and compositions disclosed herein reduce fratricide within a therapeutic cell population, which in some instances comprises mixture of immune cell types. Additionally, the methods and compositions disclosed herein enhance one or more aspects of the efficacy of the immune cells in cellular immunotherapy including cytotoxicity and/or persistence, as well as reduced graft versus host or host versus graft effects.
    Type: Application
    Filed: December 2, 2021
    Publication date: October 10, 2024
    Inventors: James Barnaby Trager, Ivan Chan, Don-Hong Wang, Guangnan Li, Alexandra Leida Liana Lazetic, Chao Guo
  • Patent number: 12012458
    Abstract: Several embodiments of the methods and compositions disclosed herein relate to immune cells that are engineered to express chimeric antigen receptors (CAR) and/or genetically modified to reduce potential side effects of cellular immunotherapy. Several embodiments relate to genetic modifications to the immune cells, such as Natural Killer (NK) cells, to reduce, substantially, reduce, or eliminate expression of a marker by the immune cells that would otherwise cause them to be self-targeted by the CAR. In several embodiments, the CAR targets CD70, and in some embodiments is used for renal cell carcinoma immunotherapy.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: June 18, 2024
    Assignee: NKARTA, INC.
    Inventors: James Barnaby Trager, Alexandra Leida Liana Lazetic, Ivan Chan, Chao Guo, Katherine Jamboretz
  • Publication number: 20230390392
    Abstract: Several embodiments of the methods and compositions disclosed herein relate to immune cells that are engineered to express chimeric antigen receptors (CAR) and/or genetically modified to reduce potential side effects of cellular immunotherapy. Several embodiments relate to genetic modifications to the immune cells, such as Natural Killer (NK) cells, to reduce, substantially, reduce, or eliminate expression of a combination of genes and their corresponding proteins. In several embodiments, one edit is to reduce expression of a marker by the immune cells that would otherwise cause them to be self-targeted by the CAR and at least two additional gene edits to enhance the cytotoxicity and/or persistence of the resulting cells. In several embodiments, the CAR targets CD70, and in some embodiments is used for renal cell carcinoma immunotherapy.
    Type: Application
    Filed: March 6, 2023
    Publication date: December 7, 2023
    Inventors: James Barnaby Trager, Ivan Chan, Chao Guo, Luxuan Guo Buren, Alexandra Leida Liana Lazetic, Mary-Lee Dequéant, Hanspeter Waldner, Changan Guo, Chandirasegaran Massilamany, Ming-Hong Xie, Elizabeth N. Koch, Jacob Usadi, Parin Sripakdeevong
  • Publication number: 20220411754
    Abstract: Several embodiments disclosed herein relate to methods and compositions for enhanced expansion of NK cells in culture. In several embodiments, the methods utilize one or more soluble interleukins as culture media supplements at one or more time points during expansion of the NK cell, or other immune cell, the expansion employing a feeder cell population.
    Type: Application
    Filed: July 29, 2020
    Publication date: December 29, 2022
    Inventors: James Barnaby TRAGER, Alexandra Leida Liana LAZETIC, Ivan CHAN, Anmol VOHRA
  • Publication number: 20220233593
    Abstract: Several embodiments of the methods and compositions disclosed herein relate to immune cells that are engineered to express chimeric antigen receptors and/or genetically modified to enhance one or more aspects of the efficacy of the immune cells in cellular immunotherapy. Several embodiments relate to genetic modifications which reduce potential side effects of cellular immunotherapy. In several embodiments, combinations of cells are used to achieve both rapid and long-term tumor reduction with reduced or eliminated potential for graft versus host effects.
    Type: Application
    Filed: June 2, 2020
    Publication date: July 28, 2022
    Inventors: James Barnaby Trager, Luxuan Guo Buren, Chao Guo, Guangnan Li, Daofeng Liu, Ivan Chan
  • Publication number: 20220233590
    Abstract: Provided for herein in several embodiments are immune cell-based (e.g., natural killer (NK) cell) compositions comprising CD19-directed chimeric antigen receptors. In some, embodiments the anti-CD19 binder portion of the CAR is humanized. In several embodiments, the humanized anti-CD19 CAR expressing cells exhibit enhanced expression of the CAR as well as enhanced cytotoxicity and/or persistence. Several embodiments include methods of using of the anti-CD19 CAR expressing immune cells in immunotherapy.
    Type: Application
    Filed: January 7, 2022
    Publication date: July 28, 2022
    Inventors: James Barnaby TRAGER, Luxuan Guo BUREN, Chao GUO, Mira TOHMÉ, Ivan CHAN, Alexandra Leida Liana LAZETIC
  • Patent number: 11253547
    Abstract: Provided for herein in several embodiments are immune cell-based (e.g., natural killer (NK) cell) compositions comprising CD19-directed chimeric antigen receptors. In some, embodiments the anti-CD19 binder portion of the CAR is humanized. In several embodiments, the humanized anti-CD19 CAR expressing cells exhibit enhanced expression of the CAR as well as enhanced cytotoxicity and/or persistence. Several embodiments include methods of using of the anti-CD19 CAR expressing immune cells in immunotherapy.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: February 22, 2022
    Assignee: Nkarta, Inc.
    Inventors: James Barnaby Trager, Luxuan Guo Buren, Chao Guo, Mira Tohmé, Ivan Chan, Alexandra Leida Liana Lazetic
  • Publication number: 20220002424
    Abstract: Several embodiments of the methods and compositions disclosed herein relate to immune cells that are engineered to express chimeric antigen receptors (CAR) and/or genetically modified to reduce potential side effects of cellular immunotherapy. Several embodiments relate to genetic modifications to the immune cells, such as Natural Killer (NK) cells, to reduce, substantially, reduce, or eliminate expression of a marker by the immune cells that would otherwise cause them to be self-targeted by the CAR. In several embodiments, the CAR targets CD70, and in some embodiments is used for renal cell carcinoma immunotherapy.
    Type: Application
    Filed: June 10, 2021
    Publication date: January 6, 2022
    Inventors: James Barnaby Trager, Alexandra Leida Liana Lazetic, Ivan Chan, Chao Guo, Katherine Jamboretz
  • Patent number: 11154575
    Abstract: Several embodiments provided for relate to methods of using of anti-CD19 CAR expressing immune cells in immunotherapy. Provided for herein in several embodiments are immune cell-based (e.g., natural killer (NK) cell) compositions comprising CD19-directed chimeric antigen receptors. In some, embodiments the anti-CD19 binder portion of the CAR is humanized. In several embodiments, the humanized anti-CD19 CAR expressing cells exhibit enhanced expression of the CAR as well as enhanced cytotoxicity and/or persistence.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: October 26, 2021
    Assignee: Nkarta, Inc.
    Inventors: James Barnaby Trager, Luxuan Guo Buren, Chao Guo, Mira Tohmé, Ivan Chan, Alexandra Leida Liana Lazetic
  • Patent number: 11141436
    Abstract: Provided for herein in several embodiments are immune cell-based (e.g., natural killer (NK) cell) compositions comprising CD19-directed chimeric antigen receptors. In some, embodiments the anti-CD19 binder portion of the CAR is humanized. In several embodiments, the humanized anti-CD19 CAR expressing cells exhibit enhanced expression of the CAR as well as enhanced cytotoxicity and/or persistence. Several embodiments include methods of using of the anti-CD19 CAR expressing immune cells in immunotherapy.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: October 12, 2021
    Assignee: Nkarta, Inc.
    Inventors: James Barnaby Trager, Luxuan Guo Buren, Chao Guo, Mira Tohmé, Ivan Chan, Alexandra Leida Liana Lazetic
  • Publication number: 20210070857
    Abstract: Provided for herein in several embodiments are immune cell-based (e.g., natural killer (NK) cell) compositions comprising CD19-directed chimeric antigen receptors. In some, embodiments the anti-CD19 binder portion of the CAR is humanized. In several embodiments, the humanized anti-CD19 CAR expressing cells exhibit enhanced expression of the CAR as well as enhanced cytotoxicity and/or persistence. Several embodiments include methods of using of the anti-CD19 CAR expressing immune cells in immunotherapy.
    Type: Application
    Filed: November 4, 2020
    Publication date: March 11, 2021
    Inventors: James Barnaby Trager, Luxuan Guo Buren, Chao Guo, Mira Tohmé, Ivan Chan, Alexandra Leida Liana Lazetic