Patents by Inventor Bruce Keyt

Bruce Keyt 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: 10975147
    Abstract: The present invention concerns modified recombinant J-chain polypeptides, binding molecules, such as antibodies comprising the same, and their uses.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: April 13, 2021
    Assignee: IGM Biosciences, Inc.
    Inventors: Bruce Keyt, Leonard George Presta, Fen Zhang, Ramesh Baliga
  • Publication number: 20210087273
    Abstract: This disclosure provides an IgM antibody or IgM-like antibody comprising a variant J-chain and/or variant IgM heavy chain constant regions that can confer increased serum half-life upon the antibody.
    Type: Application
    Filed: December 3, 2020
    Publication date: March 25, 2021
    Inventors: Ramesh BALIGA, Bruce KEYT, Dean NG
  • Patent number: 10954302
    Abstract: Aspects of the invention include isolated anti-PD-L1 antibodies, as well as compositions containing such antibodies, and methods of using the same in the treatment of diseases or conditions that are mediated by PD-L1 signaling.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: March 23, 2021
    Assignee: IGM Biosciences, Inc.
    Inventors: Bruce Keyt, Leonard George Presta, Ramesh Baliga
  • Patent number: 10899835
    Abstract: This disclosure provides an IgM antibody or IgM-like antibody comprising a variant J-chain and/or variant IgM heavy chain constant regions that can confer increased serum half-life upon the antibody.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: January 26, 2021
    Assignee: IGM Biosciences, Inc.
    Inventors: Ramesh Baliga, Bruce Keyt, Dean Ng
  • Publication number: 20210002353
    Abstract: This disclosure provides a multimeric hepatitis B virus (HBV) protein binding molecule, e.g., a dimeric IgA or a pentameric or hexameric IgM binding molecule, comprising at least two bivalent binding units, or variants or fragments thereof, each comprising at least two antibody heavy chain constant regions or fragments thereof, wherein each heavy chain constant region or fragment thereof is associated with an HBV antigen binding domain. The disclosure also provides compositions comprising the multimeric binding molecules, polynucleotides encoding the multimeric binding molecules, and methods to make and use the multimeric binding molecules.
    Type: Application
    Filed: February 19, 2020
    Publication date: January 7, 2021
    Inventors: Stephen F. Carroll, Ramesh Baliga, Dean Ng, Bruce Keyt
  • Patent number: 10822399
    Abstract: The present invention concerns IgA multi-specific binding molecules. In particular, the invention concerns multi-specific, including bispecific, binding molecules comprising IgA heavy chain sequences, and methods for their preparation and use.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: November 3, 2020
    Assignee: IGM Biosciences, Inc.
    Inventors: Bruce Keyt, Leonard George Presta, Fen Zhang, Stephen F. Carroll
  • Publication number: 20200255546
    Abstract: The present invention concerns binding molecules that comprise an IgM, IgA, IgG/IgM or IgG/IgA antibody with a J-chain modified to include an ADME-modulating moiety, and their uses.
    Type: Application
    Filed: January 16, 2020
    Publication date: August 13, 2020
    Inventors: Bruce A. Keyt, Leonard G. Presta, Ramesh Baliga
  • Publication number: 20200239572
    Abstract: This disclosure provides an IgM antibody or IgM-like antibody comprising a variant J-chain and/or variant IgM heavy chain constant regions that can confer increased serum half-life upon the antibody.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 30, 2020
    Inventors: Ramesh BALIGA, Bruce KEYT, Dean NG
  • Publication number: 20200190190
    Abstract: The present invention concerns modified recombinant J-chain polypeptides, binding molecules, such as antibodies comprising the same, and their uses.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 18, 2020
    Inventors: Bruce Keyt, Leonard George Presta, Fen Zhang, Ramesh Baliga
  • Patent number: 10618978
    Abstract: The present invention concerns binding molecules that comprise an IgM, IgA, IgG/IgM or IgG/IgA antibody with a J-chain modified to include an AD-ME-modulating moiety, and their uses.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 14, 2020
    Assignee: IGM Biosciences, Inc.
    Inventors: Bruce A. Keyt, Leonard G. Presta, Ramesh Baliga
  • Patent number: 10604559
    Abstract: This disclosure provides a multimeric hepatitis B virus (HBV) protein binding molecule, e.g., a dimeric IgA or a pentameric or hexameric IgM binding molecule, comprising at least two bivalent binding units, or variants or fragments thereof, each comprising at least two antibody heavy chain constant regions or fragments thereof, wherein each heavy chain constant region or fragment thereof is associated with an HBV antigen binding domain. The disclosure also provides compositions comprising the multimeric binding molecules, polynucleotides encoding the multimeric binding molecules, and methods to make and use the multimeric binding molecules.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: March 31, 2020
    Assignee: IGM Biosciences, Inc.
    Inventors: Stephen F. Carroll, Ramesh Baliga, Dean Ng, Bruce Keyt
  • Publication number: 20200062860
    Abstract: The present invention relates to novel antibodies, particularly antibodies directed against deletion mutants of epidermal growth factor receptor and particularly to the type III deletion mutant, EGFRvIII. The invention also relates to human monoclonal antibodies directed against deletion mutants of epidermal growth factor receptor and particularly to EGFRvIII. Diagnostic and therapeutic formulations of such antibodies, and immunoconjugates thereof, are also provided.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Inventors: Richard F. Weber, Xiao Feng, Orit Foord, Larry L. Green, Jean M. Gudas, Bruce A. Keyt, Ying Liu, Palaniswami Rathanaswami, Robert Raya, Xiao Dong Yang, Jose R.F. Corvalan, Ian Foltz, Xiao-Chi Jia, Jaspal Singh Kang, Chadwick Terence King, Scott L. Klakamp, Qiaojuan Jane Su
  • Patent number: 10508153
    Abstract: The present invention relates to novel antibodies, particularly antibodies directed against deletion mutants of epidermal growth factor receptor and particularly to the type III deletion mutant, EGFRvIII. The invention also relates to human monoclonal antibodies directed against deletion mutants of epidermal growth factor receptor and particularly to EGFRvIII. Diagnostic and therapeutic formulations of such antibodies, and immunoconjugates thereof, are also provided.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: December 17, 2019
    Assignee: Amgen Fremont Inc.
    Inventors: Richard F. Weber, Xiao Feng, Orit Foord, Larry L. Green, Jean M. Gudas, Bruce A. Keyt, Ying Liu, Palaniswami Rathanaswami, Robert Raya, Xiao Dong Yang, Jose R. F. Corvalan, Ian Foltz, Xiao-Chi Jia, Jaspal Singh Kang, Chadwick Terence King, Scott L. Klakamp, Qiaojuan Jane Su
  • Publication number: 20190338031
    Abstract: Aspects of the invention include isolated anti-PD-L1 antibodies, as well as compositions containing such antibodies, and methods of using the same in the treatment of diseases or conditions that are mediated by PD-L1 signaling.
    Type: Application
    Filed: May 9, 2017
    Publication date: November 7, 2019
    Inventors: Bruce KEYT, Leonard George PRESTA, Ramesh BALIGA
  • Patent number: 10400038
    Abstract: The present invention concerns modified recombinant J-chain polypeptides, binding molecules, such as antibodies comprising the same, and their uses.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: September 3, 2019
    Assignee: IGM Biosciences, Inc.
    Inventors: Bruce Keyt, Leonard George Presta, Fen Zhang, Ramesh Baliga
  • Publication number: 20190185570
    Abstract: The present invention provides binding molecules that include an IgM, IgA, IgG/IgM or IgG/IgA antibody with a modified J-chain that includes a binding moiety that antagonizes a T-cell inhibitory signaling pathway, and their uses.
    Type: Application
    Filed: September 30, 2016
    Publication date: June 20, 2019
    Inventors: Bruce A. Keyt, Leonard George Presta, Ramesh Baliga
  • Publication number: 20190100597
    Abstract: This disclosure provides pentameric and hexameric CD20 binding molecules and methods of using such molecules to direct complement-mediated, T-cell-mediated, or both complement-mediated and T-cell-mediated killing of CD20-expressing cells.
    Type: Application
    Filed: March 4, 2015
    Publication date: April 4, 2019
    Applicant: IGM Biosciences, Inc.
    Inventors: Bruce Keyt, Omar Duramad, Beatrice Tien-Yi Wang, Ramesh Baliga, Fen Zhang
  • Patent number: 10118968
    Abstract: The present invention relates to novel antibodies, particularly antibodies directed against deletion mutants of epidermal growth factor receptor and particularly to the type III deletion mutant, EGFRvIII. The invention also relates to human monoclonal antibodies directed against deletion mutants of epidermal growth factor receptor and particularly to EGFRvIII. Diagnostic and therapeutic formulations of such antibodies, and immunoconjugates thereof, are also provided.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: November 6, 2018
    Assignee: Amgen Fremont Inc.
    Inventors: Richard Weber, Xiao Feng, Orit Foord, Larry Green, Jean M. Gudas, Bruce Keyt, Ying Liu, Palaniswami Rathanaswami, Robert Raya, Xiao Dong Yang, Jose Corvalan, Ian Foltz, Xiao-Chi Jia, Jaspal S. Kang, Chadwick T. King, Scott L. Klakamp, Qiaojuan Jane Su
  • Publication number: 20180265596
    Abstract: The present invention concerns binding molecules that comprise an IgM, IgA, IgG/IgM or IgG/IgA antibody with a J-chain modified to include an AD-ME-modulating moiety, and their uses.
    Type: Application
    Filed: September 30, 2016
    Publication date: September 20, 2018
    Inventors: Bruce A. Keyt, Leonard George Presta, Ramesh Baliga
  • Patent number: 10066011
    Abstract: Antibodies directed to the antigen Ang-2 and uses of such antibodies are described. In particular, fully human monoclonal antibodies directed to the antigen Ang-2. Nucleotide sequences encoding, and amino acid sequences comprising, heavy and light chain immunoglobulin molecules, particularly sequences corresponding to contiguous heavy and light chain sequences spanning the framework regions and/or complementarity determining regions (CDR's), specifically from FR1 through FR4 or CDR1 through CDR3. Hybridomas or other cell lines expressing such immunoglobulin molecules and monoclonal antibodies.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: September 4, 2018
    Assignee: MedImmune Limited
    Inventors: Larry L. Green, Qing Zhou, Bruce A. Keyt, Xiao-Dong Yang, Stephen Charles Emery, David Charles Blakey