Patents by Inventor P. Chang

P. Chang 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: 12384847
    Abstract: Combination therapy of a cancer with a multi-specific binding protein that bind a tumor associated antigen, the NKG2D receptor, and CD16, in combination with a second anti-cancer agent are described. Also described are pharmaceutical compositions of the multi-specific binding protein, and therapeutic methods useful for the treatment of cancer in combination with a second anti-cancer agent.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: August 12, 2025
    Assignee: Dragonfly Therapeutics, Inc.
    Inventors: Gregory P. Chang, Ann F. Cheung, Asya Grinberg, Eva Gutierrez, William Haney, Nicolai Wagtmann, Bradley M. Lunde, BIanka Prinz
  • Patent number: 12384851
    Abstract: Multi-specific binding proteins that bind to and kill human cancer cells are described, as well as pharmaceutical compositions and therapeutic methods useful for the treatment of cancer. The cancer can be B-cell maturation antigen (BCMA)-expressing cancer. The multi-specific binding proteins provided herein exhibit high potency and maximum lysis of target cells compared to anti-BCMA monoclonal antibodies.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: August 12, 2025
    Assignee: Dragonfly Therapeutics, Inc.
    Inventors: Mitchell Bigelow, Gregory P. Chang, Ann F. Cheung, Asya Grinberg, William Haney, Nicolai Wagtmann, Bradley M. Lunde, Bianka Prinz, Ronnie Wei, Daniel Fallon, Steven O'Neil
  • Patent number: 12378318
    Abstract: Multi-specific binding proteins that bind NKG2D receptor, CD 16, and a tumor-associated antigen selected from c-MET, KIT, F3, IGF1R, Lewis Y, MUC13, MUC4, MCAM, LRRC32, sialyl-Tn, gpA33, GD3, GM2, EPHA3, TNFRSF10A, TNFSF11, CD74, and PMEL are described, as well as pharmaceutical compositions and therapeutic methods useful for the treatment of cancer.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: August 5, 2025
    Assignee: DRAGONFLY THERAPEUTICS, INC.
    Inventors: Gregory P. Chang, Ann F. Cheung, Jinyan Du, Daniel Fallon, Asya Grinberg, William Haney, Bradley M. Lunde, Steven O'Neil, Bianka Prinz, Ronnie Wei
  • Publication number: 20250206827
    Abstract: The present disclosure provides multi-specific binding proteins that bind to and kill human cancer cells expressing epidermal growth factor receptor 2 (HER2 or ErbB2), but does not kill non-cancerous healthy human cells expressing HER2 are described, as well as pharmaceutical compositions and therapeutic methods useful for the treatment of HER2 expressing cancer.
    Type: Application
    Filed: March 11, 2025
    Publication date: June 26, 2025
    Inventors: Gregory P. Chang, Ann F. Cheung, Daniel Fallon, Asya Grinberg, William Haney, Steven O'Neil, Nicolai Wagtmann, Ronnie Wei, Bradley M. Lunde, Bianka Prinz
  • Publication number: 20250154261
    Abstract: Multi-specific binding proteins that bind to and kill human cancer cells expressing CD33 (Siglec-3) are described, as well as pharmaceutical compositions and therapeutic methods useful for the treatment of CD33 expressing cancer. The invention relates to multi-specific binding proteins that bind to human cancer cells expressing CD33, and exhibit high potency and maximum lysis of target cells compared to anti-CD33 monoclonal antibodies.
    Type: Application
    Filed: October 10, 2024
    Publication date: May 15, 2025
    Inventors: Gregory P. Chang, Ann F. Cheung, Asya Grinberg, Dhruv Kam Sethi, William Haney, Bianka Prinz, Bradley M. Lunde, Ronnie Wei, Daniel Fallon, Steven O'Neil
  • Patent number: 12275791
    Abstract: Multi-specific binding proteins that bind to and kill human cancer cells expressing epidermal growth factor receptor 2 (HER2 or ErbB2), but does not kill non-cancerous healthy human cells expressing HER2 are described, as well as pharmaceutical compositions and therapeutic methods useful for the treatment of HER2 expressing cancer. The invention also relates to multi-specific binding proteins that trigger CD8+ T cell killing of tumor cells.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: April 15, 2025
    Assignee: Dragonfly Therapeutics, Inc.
    Inventors: Gregory P. Chang, Ann F. Cheung, Daniel Fallon, Asya Grinberg, William Haney, Steven O'Neil, Nicolai Wagtmann, Ronnie Wei, Bradley M. Lunde, Bianka Prinz
  • Patent number: 12264200
    Abstract: Antibody heavy chain variable domains that can be paired with antibody light chain variable domains to form an antigen-binding site targeting the NKG2D receptor on natural killer cells are described. Proteins comprising an NKG2D antigen-binding site, pharmaceutical compositions and therapeutic methods thereof, including for the treatment of cancer, are also described.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: April 1, 2025
    Assignee: Dragonfly Therapeutics, Inc.
    Inventors: Gregory P. Chang, Ann F. Cheung, Asya Grinberg, William Haney, Bradley M. Lunde, Bianka Prinz
  • Patent number: 12215157
    Abstract: Multi-specific binding proteins that bind to and kill human cancer cells expressing CD33 (Siglec-3) are described, as well as pharmaceutical compositions and therapeutic methods useful for the treatment of CD33 expressing cancer. The invention relates to multi-specific binding proteins that bind to human cancer cells expressing CD33 and exhibit high potency and maximum lysis of target cells compared to anti-CD33 monoclonal antibodies. The multi-specific binding proteins comprise a CD33-binding domain, an NKG2D-binding domain and a CD16-binding domain.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: February 4, 2025
    Assignee: Dragonfly Therapeutics, Inc.
    Inventors: Gregory P. Chang, Ann F. Cheung, Asya Grinberg, Dhruv Kam Sethi, William Haney, Bianka Prinz, Bradley M. Lunde, Ronnie Wei, Daniel Fallon, Steven O'Neil
  • Publication number: 20250019444
    Abstract: Antibody heavy chain variable domains that can be paired with antibody light chain variable domains to form an antigen-binding site targeting the NKG2D receptor on natural killer cells are described. Proteins comprising an NKG2D antigen-binding site, pharmaceutical compositions and therapeutic methods thereof, including for the treatment of cancer, are also described.
    Type: Application
    Filed: September 24, 2024
    Publication date: January 16, 2025
    Inventors: Gregory P. Chang, Ann F. Cheung, Asya Grinberg, William Haney, Bradley M. Lunde, Bianka Prinz
  • Publication number: 20240429065
    Abstract: A method of manufacturing an interconnect in a metal layer in a back-end-of-line of a semiconductor device includes N2 plasma passivation, through an opening a hard mask, of a ruthenium layer on a substrate. The N2 plasma passivation forms a ruthenium nitride layer on the ruthenium layer. The ruthenium nitride layer includes a first portion aligned with the opening and a second portion underneath the hard mask. The method also includes H2 plasma reduction of the ruthenium nitride layer after the N2 plasma passivation. The H2 plasma reduction removes the first portion of the ruthenium nitride layer. The method also includes O2 plasma etching the ruthenium layer after the H2 plasma reduction. The method also includes repeatedly performing the N2 plasma passivation, the H2 plasma reduction, and the O2 plasma etching to remove the ruthenium layer down to the substrate.
    Type: Application
    Filed: June 18, 2024
    Publication date: December 26, 2024
    Inventors: Jane P. Chang, Owen Watkins, Harsono S. Simka, Ryan Sheil
  • Patent number: 12157771
    Abstract: Described herein are multispecific binding proteins that bind NKG2D receptor, CD16, and CLEC12A, pharmaceutical compositions comprising the multispecific binding proteins, and therapeutic methods useful for the treatment of cancer.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: December 3, 2024
    Assignee: Dragonfly Therapeutics, Inc.
    Inventors: Hemanta Baruah, Gregory P. Chang, Ann F. Cheung, Daniel Fallon, Asya Grinberg, Zong Sean Juo, Christopher Ryan Morgan
  • Patent number: 12129300
    Abstract: Antibody heavy chain variable domains that can be paired with antibody light chain variable domains to form an antigen-binding site targeting the NKG2D receptor on natural killer cells are described. Proteins comprising an NKG2D antigen-binding site, pharmaceutical compositions and therapeutic methods thereof, including for the treatment of cancer, are also described.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: October 29, 2024
    Assignee: Dragonfly Therapeutics, Inc.
    Inventors: Gregory P. Chang, Ann F. Cheung, Asya Grinberg, William Haney, Bradley M. Lunde, Bianka Prinz
  • Publication number: 20240228625
    Abstract: Multi-specific binding proteins that bind HER2, the NKG2D receptor, and CD16 are described, as well as pharmaceutical compositions and therapeutic methods useful for the treatment of cancer.
    Type: Application
    Filed: December 15, 2023
    Publication date: July 11, 2024
    Inventors: Gregory P. Chang, Ann F. Cheung, William Haney, Bradley M. Lunde, Bianka Prinz
  • Publication number: 20240228628
    Abstract: Disclosed are proteins with antibody heavy chain and light chain variable domains that can be paired to form an antigen-binding site targeting FLT3 on a cell, pharmaceutical compositions comprising such proteins, and therapeutic methods using such proteins and pharmaceutical compositions, including for the treatment of cancer.
    Type: Application
    Filed: October 14, 2020
    Publication date: July 11, 2024
    Inventors: Hemanta Baruah, Gregory P. Chang, Ann F. Cheung, Asya Grinberg, Zong Sean Juo, Thomas J. McQuade
  • Publication number: 20240166753
    Abstract: Multi-specific binding proteins that bind a tumor associated antigen, the NKG2D receptor, and CD16 are described, as well as pharmaceutical compositions and therapeutic methods useful for the treatment of cancer.
    Type: Application
    Filed: October 6, 2023
    Publication date: May 23, 2024
    Inventors: Gregory P. Chang, Ann F. Cheung, William Haney, Asya Grinberg
  • Publication number: 20240132598
    Abstract: Disclosed are proteins with antibody heavy chain and light chain variable domains that can be paired to form an antigen-binding site targeting FLT3 on a cell, pharmaceutical compositions comprising such proteins, and therapeutic methods using such proteins and pharmaceutical compositions, including for the treatment of cancer.
    Type: Application
    Filed: October 13, 2020
    Publication date: April 25, 2024
    Inventors: Hemanta Baruah, Gregory P. Chang, Ann F. Cheung, Asya Grinberg, Zong Sean Juo, Thomas J. McQuade
  • Publication number: 20240124607
    Abstract: Multi-specific binding proteins that bind NKG2D, CD16, and CEACAM5 are described, as well as pharmaceutical compositions and therapeutic methods useful for the treatment of cancer
    Type: Application
    Filed: August 8, 2023
    Publication date: April 18, 2024
    Inventors: Amy M. Beebe, Laurence Fayadat-Dilman, Veronica M. Juan, Gregory P. Chang, Souvik Chattopadhyay, Ann F. Cheung, Asya Grinberg, Pyae P. Hein, Nicolai Wagtmann
  • Publication number: 20240117054
    Abstract: Multi-specific binding proteins that bind NKG2D receptor, CD 16, and FLT3 are described, as well as pharmaceutical compositions and therapeutic methods useful for the treatment of autoimmune disease or cancer.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 11, 2024
    Inventors: Hemanta Baruah, Gregory P. Chang, Ann F. Cheung, Asya Grinberg, Zong Sean Juo, Thomas J. McQuade, Daniel Fallon, William Haney, Steven O'Neil, Ronnie Wei
  • Patent number: 11939384
    Abstract: Antibody heavy chain variable domains that can be paired with antibody light chain variable domains to form an antigen-binding site targeting the NKG2D receptor on natural killer cells are described. Proteins comprising an NKG2D antigen-binding site, pharmaceutical compositions and therapeutic methods thereof, including for the treatment of cancer, are also described.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: March 26, 2024
    Assignee: Dragonfly Therapeutics, Inc.
    Inventors: Gregory P. Chang, Ann F. Cheung, Asya Grinberg, William Haney, Bradley M. Lunde, Bianka Prinz
  • Publication number: 20240076385
    Abstract: Antibody heavy chain variable domains that can be paired with antibody light chain variable domains to form an antigen-binding site targeting the NKG2D receptor on natural killer cells are described. Proteins comprising an NKG2D antigen-binding site, pharmaceutical compositions and therapeutic methods thereof, including for the treatment of cancer, are also described.
    Type: Application
    Filed: November 3, 2023
    Publication date: March 7, 2024
    Inventors: Gregory P. Chang, Ann F. Cheung, Asya Grinberg, William Haney, Bradley M. Lunde, Bianka Prinz