Patents by Inventor Beatrice W. Muriithi

Beatrice W. Muriithi 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: 20240116025
    Abstract: The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for their preparation and separations devices containing the chromatographic materials. The preparation of the inorganic/organic hybrid materials of the invention wherein a surrounding material is condensed on a superficially porous hybrid core material will allow for families of different hybrid packing materials to be prepared from a single core hybrid material. Differences in hydrophobicity, ion-exchange capacity, chemical stability, surface charge or silanol activity of the surrounding material may be used for unique chromatographic separations of small molecules, carbohydrates, antibodies, whole proteins, peptides, and/or DNA.
    Type: Application
    Filed: March 22, 2023
    Publication date: April 11, 2024
    Applicant: Waters Technologies Corporation
    Inventors: Nicole L. Lawrence, Kevin Daniel Wyndham, Beatrice W. Muriithi
  • Patent number: 11642653
    Abstract: The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for their preparation and separations devices containing the chromatographic materials. The preparation of the inorganic/organic hybrid materials of the invention wherein a surrounding material is condensed on a superficially porous hybrid core material will allow for families of different hybrid packing materials to be prepared from a single core hybrid material. Differences in hydrophobicity, ion-exchange capacity, chemical stability, surface charge or silanol activity of the surrounding material may be used for unique chromatographic separations of small molecules, carbohydrates, antibodies, whole proteins, peptides, and/or DNA.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: May 9, 2023
    Assignee: Waters Technologies Corporation
    Inventors: Nicole L. Lawrence, Kevin Daniel Wyndham, Beatrice W. Muriithi
  • Patent number: 11478775
    Abstract: The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for its preparation and separations devices containing the chromatographic material; separations devices, chromatographic columns and kits comprising the same; and methods for the preparation thereof. The chromatographic materials of the invention are chromatographic materials comprising having a narrow particle size distribution.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: October 25, 2022
    Assignee: Waters Technologies Corporation
    Inventors: Kevin D. Wyndham, Beatrice W. Muriithi
  • Patent number: 11439977
    Abstract: The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for their preparation and separations devices containing the chromatographic materials. The preparation of the inorganic/organic hybrid materials of the invention wherein a surrounding material is condensed on a superficially porous hybrid core material will allow for families of different hybrid packing materials to be prepared from a single core hybrid material. Differences in hydrophobicity, ion-exchange capacity, chemical stability, surface charge or silanol activity of the surrounding material may be used for unique chromatographic separations of small molecules, carbohydrates, antibodies, whole proteins, peptides, and/or DNA.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 13, 2022
    Assignee: WATERS TECHNOLOGIES CORPORATION
    Inventors: Nicole L. Lawrence, Beatrice W. Muriithi, Kevin D Wyndham
  • Publication number: 20220009960
    Abstract: In various aspects, the present disclosure pertains to sorbents for isolating at least one target protein from a liquid sample, the sorbents comprising a solid support comprising attached at least one attached high affinity reagent with an affinity for the at least one target protein. Other aspects of the present disclosure include kit that contain such sorbents and methods of treating samples using the same.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Inventors: Laks Iyer, Beatrice W. Muriithi
  • Patent number: 11155575
    Abstract: In various aspects, the present disclosure pertains to sorbents for isolating at least one target protein from a liquid sample, the sorbents comprising a solid support comprising attached at least one attached high affinity reagent with an affinity for the at least one target protein. Other aspects of the present disclosure include kit that contain such sorbents and methods of treating samples using the same.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: October 26, 2021
    Assignee: Waters Technologies Corporation
    Inventors: Laks Iyer, Beatrice W. Muriithi
  • Publication number: 20210237033
    Abstract: Novel chromatographic materials for chromatographic separations, columns, kits, and methods for preparation and separations with a superficially porous material comprising a substantially nonporous core and one or more layers of a porous shell material surrounding the core. The material of the invention is comprised of superficially porous particles and a narrow particle size distrution.
    Type: Application
    Filed: April 2, 2021
    Publication date: August 5, 2021
    Applicant: Waters Technologies Corporation
    Inventors: Kevin D. Wyndham, Beatrice W. Muriithi, Michael F. Morris, Nicole L. Lawrence
  • Publication number: 20190292222
    Abstract: In various aspects, the present disclosure pertains to sorbents for isolating at least one target protein from a liquid sample, the sorbents comprising a solid support comprising attached at least one attached high affinity reagent with an affinity for the at least one target protein. Other aspects of the present disclosure include kit that contain such sorbents and methods of treating samples using the same.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 26, 2019
    Inventors: Laks Iyer, Beatrice W. Muriithi
  • Publication number: 20190091657
    Abstract: The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for their preparation and separations devices containing the chromatographic materials. The preparation of the inorganic/organic hybrid materials of the invention wherein a surrounding material is condensed on a superficially porous hybrid core material will allow for families of different hybrid packing materials to be prepared from a single core hybrid material. Differences in hydrophobicity, ion-exchange capacity, chemical stability, surface charge or silanol activity of the surrounding material may be used for unique chromatographic separations of small molecules, carbohydrates, antibodies, whole proteins, peptides, and/or DNA.
    Type: Application
    Filed: March 6, 2017
    Publication date: March 28, 2019
    Inventors: Nicole L. Lawrence, Kevin Daniel Wyndham, Beatrice W. Muriithi
  • Publication number: 20180353934
    Abstract: The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for its preparation and separations devices containing the chromatographic material; separations devices, chromatographic columns and kits comprising the same; and methods for the preparation thereof. The chromatographic materials of the invention are chromatographic materials comprising having a narrow particle size distribution.
    Type: Application
    Filed: August 13, 2018
    Publication date: December 13, 2018
    Applicant: Waters Technologies Corporation
    Inventors: Kevin D. Wyndham, Beatrice W. Muriithi
  • Patent number: 10092893
    Abstract: The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for its preparation and separations devices containing the chromatographic material; separations devices, chromatographic columns and kits comprising the same; and methods for the preparation thereof. The chromatographic materials of the invention are chromatographic materials comprising having a narrow particle size distribution.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: October 9, 2018
    Assignee: WATERS TECHNOLOGIES CORPORATION
    Inventors: Kevin D. Wyndham, Beatrice W. Muriithi
  • Publication number: 20170173561
    Abstract: The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for their preparation and separations devices containing the chromatographic materials. The preparation of the inorganic/organic hybrid materials of the invention wherein a surrounding material is condensed on a superficially porous hybrid core material will allow for families of different hybrid packing materials to be prepared from a single core hybrid material. Differences in hydrophobicity, ion-exchange capacity, chemical stability, surface charge or silanol activity of the surrounding material may be used for unique chromatographic separations of small molecules, carbohydrates, antibodies, whole proteins, peptides, and/or DNA.
    Type: Application
    Filed: March 6, 2017
    Publication date: June 22, 2017
    Inventors: Nicole L. Lawrence, Beatrice W. Muriithi, Kevin D Wyndham
  • Publication number: 20130206665
    Abstract: The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for its preparation and separations devices containing the chromatographic material; separations devices, chromatographic columns and kits comprising the same; and methods for the preparation thereof. The chromatographic materials of the invention are chromatographic materials comprising having a narrow particle size distribution.
    Type: Application
    Filed: July 25, 2011
    Publication date: August 15, 2013
    Applicant: WATERS TECHNOLOGIES CORPORATION
    Inventors: Kevin D. Wyndham, Beatrice W. Muriithi
  • Publication number: 20130112605
    Abstract: Novel chromatographic materials for chromatographic separations, columns, kits, and methods for preparation and separations with a superficially porous material comprising a substantially nonporous core and one or more layers of a porous shell material surrounding the core. The material of the invention is comprised of superficially porous particles and a narrow particle size distrution.
    Type: Application
    Filed: July 25, 2011
    Publication date: May 9, 2013
    Applicant: Waters Technologies Corporation
    Inventors: Kevin D. Wyndham, Beatrice W. Muriithi, Michael F. Morris, Nicole L. Lawrence