Patents by Inventor Meredith Packer

Meredith Packer 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: 11912982
    Abstract: Aspects of the disclosure relate to liquid chromatography (e.g., HPLC) methods which enable high resolution separations of polynucleotides having hydrophobic portions (e.g., polyadenylated nucleic acids, such as mRNA) based upon the hydrophobic character of the molecules (e.g., polyA tail length). In some embodiments, the disclosure describes liquid chromatographic methods for separating a nucleic acid having a hydrophobic portion (e.g., a polyadenylated nucleic acid, such as an mRNA) from a complex mixture by a mobile phase system that comprises an ion pairing agent selected from Tris, inorganic cations (including e.g., Na, Li, K, ammonium, etc.), biological buffers (e.g., MOPS, HEPES, PIPES, etc.), and other charged or hydrophilic moieties, and lacks conventional ion pairing agents (e.g., Triethylammonium acetate, TEAA). Accordingly, in some embodiments methods described by the disclosure are useful for assessing the quality of pharmaceutical preparations comprising nucleic acids.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: February 27, 2024
    Assignee: ModernaTX, Inc.
    Inventors: William Issa, Meredith Packer
  • Publication number: 20240016827
    Abstract: Provided herein are compositions and methods of reducing adduct formation.
    Type: Application
    Filed: June 2, 2023
    Publication date: January 18, 2024
    Applicant: ModernaTX, Inc.
    Inventors: Meredith Packer, Dipendra Gyawali, Serenus Hua, Gabor Butora, Gregory John Mercer
  • Patent number: 11866696
    Abstract: Aspects of the disclosure relate to liquid chromatography (e.g., HPLC) methods which enable high resolution separations of polynucleotides of various lengths, sequences, and/or base compositions in a highly tunable manner. In some embodiments, the disclosure describes liquid chromatographic methods for separating a nucleic acid (e.g., a polyadenylated nucleic acid, such as an mRNA) from a complex mixture by using multiple ion pairing agents in the same mobile phase system. Accordingly, in some embodiments methods described by the disclosure are useful for assessing the quality of pharmaceutical preparations comprising nucleic acids.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: January 9, 2024
    Assignee: ModernaTX, Inc.
    Inventors: William Issa, Meredith Packer
  • Patent number: 11622972
    Abstract: Provided herein are compositions and methods of reducing adduct formation.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: April 11, 2023
    Assignee: MODERNATX, INC.
    Inventors: Meredith Packer, Dipendra Gyawali, Serenus Hua, Gabor Butora, Gregory John Mercer
  • Patent number: 11524023
    Abstract: Provided herein are compositions and methods of reducing adduct formation.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: December 13, 2022
    Assignee: MODERNATX, INC.
    Inventors: Meredith Packer, Dipendra Gyawali, Serenus Hua, Gabor Butora, Gregory John Mercer
  • Publication number: 20220339185
    Abstract: Provided herein are compositions and methods of reducing adduct formation.
    Type: Application
    Filed: June 27, 2022
    Publication date: October 27, 2022
    Applicant: ModernaTX, Inc.
    Inventors: Meredith Packer, Dipendra Gyawali, Serenus Hua, Gabor Butora, Gregory John Mercer
  • Publication number: 20220273693
    Abstract: Provided herein are compositions and methods of reducing adduct formation.
    Type: Application
    Filed: October 22, 2021
    Publication date: September 1, 2022
    Inventors: Meredith Packer, Dipendra Gyawali, Serenus Hua, Gabor Butora, Gregory John Mercer
  • Publication number: 20210163919
    Abstract: Aspects of the disclosure relate to liquid chromatography (e.g., HPLC) methods which enable high resolution separations of polynucleotides having hydrophobic portions (e.g., polyadenylated nucleic acids, such as mRNA) based upon the hydrophobic character of the molecules (e.g., polyA tail length). In some embodiments, the disclosure describes liquid chromatographic methods for separating a nucleic acid having a hydrophobic portion (e.g., a polyadenylated nucleic acid, such as an mRNA) from a complex mixture by a mobile phase system that comprises an ion pairing agent selected from Tris, inorganic cations (including e.g., Na, Li, K, ammonium, etc.), biological buffers (e.g., MOPS, HEPES, PIPES, etc.), and other charged or hydrophilic moieties, and lacks conventional ion pairing agents (e.g., Triethylammonium acetate, TEAA). Accordingly, in some embodiments methods described by the disclosure are useful for assessing the quality of pharmaceutical preparations comprising nucleic acids.
    Type: Application
    Filed: August 17, 2018
    Publication date: June 3, 2021
    Applicant: ModernaTX, Inc.
    Inventors: William Issa, Meredith Packer
  • Publication number: 20200239869
    Abstract: Aspects of the disclosure relate to liquid chromatography (e.g., HPLC) methods which enable high resolution separations of polynucleotides of various lengths, sequences, and/or base compositions in a highly tunable manner. In some embodiments, the disclosure describes liquid chromatographic methods for separating a nucleic acid (e.g., a polyadenylated nucleic acid, such as an mRNA) from a complex mixture by using multiple ion pairing agents in the same mobile phase system. Accordingly, in some embodiments methods described by the disclosure are useful for assessing the quality of pharmaceutical preparations comprising nucleic acids.
    Type: Application
    Filed: August 17, 2018
    Publication date: July 30, 2020
    Applicant: ModernaTX, Inc.
    Inventors: William Issa, Meredith Packer