Patents by Inventor Brenda A. Kellogg

Brenda A. Kellogg 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: 20230105468
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups. This conjugation method provides in high yields conjugates of high purity and homogeneity that are without inter-chain cross-linking and inactivated linker residues.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 6, 2023
    Inventors: Brenda A. KELLOGG, Rajeeva SINGH, Ravi V. CHARI
  • Patent number: 11498979
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups. This conjugation method provides in high yields conjugates of high purity and homogeneity that are without inter-chain cross-linking and inactivated linker residues.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: November 15, 2022
    Assignee: IMMUNOGEN, INC.
    Inventors: Brenda A. Kellogg, Rajeeva Singh, Ravi V. Chari
  • Publication number: 20210163625
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups. This conjugation method provides in high yields conjugates of high purity and homogeneity that are without inter-chain cross-linking and inactivated linker residues.
    Type: Application
    Filed: September 24, 2020
    Publication date: June 3, 2021
    Inventors: Brenda A. KELLOGG, Rajeeva SINGH, Ravi V. CHARI
  • Patent number: 10815309
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups. This conjugation method provides in high yields conjugates of high purity and homogeneity that are without inter-chain cross-linking and inactivated linker residues.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: October 27, 2020
    Assignee: IMMUNOGEN, INC.
    Inventors: Brenda A. Kellogg, Rajeeva Singh, Ravi V. Chari
  • Publication number: 20190263935
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups.
    Type: Application
    Filed: February 1, 2019
    Publication date: August 29, 2019
    Inventors: Brenda A. Kellogg, Rajeeva Singh, Ravi V. Chari
  • Patent number: 10233257
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups. This conjugation method provides in high yields conjugates of high purity and homogeneity that are without inter-chain cross-linking and inactivated linker residues.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: March 19, 2019
    Assignee: IMMUNOGEN, INC.
    Inventors: Brenda A. Kellogg, Rajeeva Singh, Ravi V. J. Chari
  • Publication number: 20180079828
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups.
    Type: Application
    Filed: September 1, 2017
    Publication date: March 22, 2018
    Inventors: Brenda A. Kellogg, Rajeeva Singh, Ravi V.J. Chari
  • Patent number: 9771432
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups. This conjugation method provides in high yields conjugates of high purity and homogeneity that are without inter-chain cross-linking and inactivated linker residues.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 26, 2017
    Assignee: IMMUNOGEN, INC.
    Inventors: Brenda A. Kellogg, Rajeeva Singh, Ravi V. J. Chari
  • Publication number: 20170002096
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups.
    Type: Application
    Filed: May 27, 2016
    Publication date: January 5, 2017
    Inventors: Brenda A. KELLOGG, Rajeeva SINGH, Ravi V. J. CHARI
  • Patent number: 9376500
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups. This conjugation method provides in high yields conjugates of high purity and homogeneity that are without inter-chain cross-linking and inactivated linker residues.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: June 28, 2016
    Assignee: ImmunoGen, Inc.
    Inventors: Brenda A. Kellogg, Rajeeva Singh, Ravi V. J. Chari
  • Publication number: 20140179906
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups.
    Type: Application
    Filed: December 3, 2013
    Publication date: June 26, 2014
    Applicant: ImmunoGen, Inc.
    Inventors: Brenda A. KELLOGG, Rajeeva SINGH, Ravi V. J. CHARI
  • Patent number: 8624003
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups. This conjugation method provides in high yields conjugates of high purity and homogeneity that are without inter-chain cross-linking and inactivated linker residues.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: January 7, 2014
    Assignee: ImmunoGen, Inc.
    Inventors: Brenda A. Kellogg, Rajeeva Singh, Ravi V. J. Chari
  • Publication number: 20110003969
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups.
    Type: Application
    Filed: June 3, 2010
    Publication date: January 6, 2011
    Applicant: Immunogen Inc.
    Inventors: Brenda A. Kellogg, Rajeeva Singh, Ravi V. J. Chari