Patents by Inventor Kefei Hu

Kefei Hu 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: 20240024468
    Abstract: Fraction A of Quil A can be used together with at least one other adjuvant for the preparation of an adjuvant composition, where the included adjuvant components act synergistically to enhance level of immune response and have synergistic immunomodulating activity on the co-administered antigens or immunogens. Other adjuvants can comprise saponins, naturally occurring, synthetic or semisynthetic saponin molecules; e.g. saponins and saponin fractions from Quil A, cell wall skeleton, block polymers, TDM, lipopeptides, LPS and LPS-derivatives, Lipid A from different bacterial species and derivatives thereof, e.g., monophosphoryl lipid A, CpG variants, CT and LT or fractions thereof.
    Type: Application
    Filed: October 4, 2023
    Publication date: January 25, 2024
    Applicant: Novavax AB
    Inventors: Bror MOREIN, Karin LÖVGREN BENGTSSON, Jill EKSTRÖM, Katarina RANLUND, Kefei HU
  • Publication number: 20230321227
    Abstract: The present invention relates to filamentous, i.e. thread-like nanoparticles comprising sterol and a component derived from Quillaja saponaria Molina selected from quillaja acid and quillaja saponin. More particularly, the invention relates to the use of said thread-like nanoparticles in vaccines and drug delivery or adsorption systems systems, methods for their production and uses thereof, such as for use as a vaccine adjuvant and in cancer therapy.
    Type: Application
    Filed: December 16, 2019
    Publication date: October 12, 2023
    Applicant: Croda International Plc
    Inventors: Kefei HU, Laurent Duroux, Erik Lindblad
  • Publication number: 20220241408
    Abstract: Fraction A of Quil A can be used together with at least one other adjuvant for the preparation of an adjuvant composition, where the included adjuvant components act synergistically to enhance level of immune response and have synergistic immunomodulating activity on the co-administered antigens or immunogens. Other adjuvants can comprise saponins, naturally occurring, synthetic or semisynthetic saponin molecules; e.g. saponins and saponin fractions from Quil A, cell wall skeleton, block polymers, TDM, lipopeptides, LPS and LPS-derivatives, Lipid A from different bacterial species and derivatives thereof, e.g., monophosphoryl lipid A, CpG variants, CT and LT or fractions thereof.
    Type: Application
    Filed: September 17, 2021
    Publication date: August 4, 2022
    Inventors: Bror MOREIN, Karin LÖVGREN BENGTSSON, Jill EKSTRÖM, Katarina RANLUND, Kefei HU
  • Publication number: 20200345840
    Abstract: Fraction A of Quil A can be used together with at least one other adjuvant for the preparation of an adjuvant composition, where the included adjuvant components act synergistically to enhance level of immune response and have synergistic immunomodulating activity on the co-administered antigens or immunogens. Other adjuvants can comprise saponins, naturally occurring, synthetic or semisynthetic saponin molecules; e.g. saponins and saponin fractions from Quil A, cell wall skeleton, block polymers, TDM, lipopeptides, LPS and LPS-derivatives, Lipid A from different bacterial species and derivatives thereof, e.g., monophosphoryl lipid A, CpG variants, CT and LT or fractions thereof.
    Type: Application
    Filed: December 3, 2019
    Publication date: November 5, 2020
    Applicant: Novavax AB
    Inventors: Bror MOREIN, Karin LÖVGREN BENGTSSON, Jill EKSTRÖM, Katarina RANLUND, Kefei HU
  • Publication number: 20180369368
    Abstract: Fraction A of Quil A can be used together with at least one other adjuvant for the preparation of an adjuvant composition, where the included adjuvant components act synergistically to enhance level of immune response and have synergistic immunomodulating activity on the co-administered antigens or immunogens. Other adjuvants can comprise saponins, naturally occurring, synthetic or semisynthetic saponin molecules; e.g. saponins and saponin fractions from Quil A, cell wall skeleton, block polymers, TDM, lipopeptides, LPS and LPS-derivatives, Lipid A from different bacterial species and derivatives thereof, e.g., monophosphoryl lipid A, CpG variants, CT and LT or fractions thereof.
    Type: Application
    Filed: January 18, 2018
    Publication date: December 27, 2018
    Applicant: NOVAVAX AB
    Inventors: Bror Morein, Karin Lövgren Bengtsson, Jill Ekström, Katarina Ranlund, Kefei Hu
  • Publication number: 20180104330
    Abstract: A nanoparticle comprising at least one sterol, e.g. cholesterol and a component from Quillaja Saponaria Molina (QuilQ) selected from quillaja saponin, characterized in that said nanoparticles do not comprise a phospholipid and in that the sterol molecule is bound by a hydrophobic bond between a hydroxyl group of the sterol and terpene moieties in a Quil A micelle and by an hydrophilic ester bond between a sterol OH? and COOH? or aldehyde groups in the QuilA micelle. It also relates to a composition comprising the nanoparticles, and the use thereof as carriers for amphipathic or hydrophobic molecules and as agents for treatment of cancer. Further, it regards a method for producing the phospholipid-free nanoparticles, a method for the treatment of cancer and a method for assessing the applicability of the cancer treating method.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 19, 2018
    Applicant: Moreinx AB
    Inventors: Bror Morein, Saideh Berenjian, Kefei Hu
  • Patent number: 9907846
    Abstract: A nanoparticle comprising at least one sterol, e.g. cholesterol and a component from Quillaja Saponaria Molina (QuilQ) selected from quillaja saponin, characterized in that said nanoparticles do not comprise a phospholipid and in that the sterol molecule is bound by a hydrophobic bond between a hydroxyl group of the sterol and terpene moieties in a Quil A micelle and by an hydrophilic ester bond between a sterol OH? and COOH? or aldehyde groups in the QuilA micelle. It also relates to a composition comprising the nanoparticles, and the use thereof as adjuvant, especially in vaccines, as carriers for amphipathic or hydrophobic molecules and as agents for treatment of cancer. Further, it regards a method for producing the phospholipid-free nanoparticles, a method for the treatment of cancer and a method for assessing the applicability of the cancer treating method.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: March 6, 2018
    Assignee: MX ADJUVAC AB
    Inventors: Bror Morein, Saideh Berenjian, Kefei Hu
  • Publication number: 20160184427
    Abstract: Fraction A of Quil A can be used together with at least one other adjuvant for the preparation of an adjuvant composition, where the included adjuvant components act synergistically to enhance level of immune response and have synergistic immunomodulating activity on the co-administered antigens or immunogens. Other adjuvants can comprise saponins, naturally occurring, synthetic or semisynthetic saponin molecules; e.g. saponins and saponin fractions from Quil A, cell wall skeleton, block polymers, TDM, lipopeptides, LPS and LPS-derivatives, Lipid A from different bacterial species and derivatives thereof, e.g., monophosphoryl lipid A, CpG variants, CT and LT or fractions thereof.
    Type: Application
    Filed: February 26, 2016
    Publication date: June 30, 2016
    Inventors: Bror Morein, Karin Lövgren Bengtsson, Jill Ekström, Katarina Ranlund, Kefei Hu
  • Publication number: 20150320858
    Abstract: Fraction A of Quil A can be used together with at least one other adjuvant for the preparation of an adjuvant composition, where the included adjuvant components act synergistically to enhance level of immune response and have synergistic immunomodulating activity on the co-administered antigens or immunogens. Other adjuvants can comprise saponins, naturally occurring, synthetic or semisynthetic saponin molecules; e.g. saponins and saponin fractions from Quil A, cell wall skeleton, block polymers, TDM, lipopeptides, LPS and LPS-derivatives, Lipid A from different bacterial species and derivatives thereof, e.g., monophosphoryl lipid A, CpG variants, CT and LT or fractions thereof.
    Type: Application
    Filed: May 18, 2015
    Publication date: November 12, 2015
    Inventors: Bror Morein, Karin Lövgren Bengtsson, Jill Ekström, Katarina Ranlund, Kefei Hu
  • Patent number: 9040081
    Abstract: The present invention relates to the use of lipid containing particles, such as liposomes, iscom and/or iscom matrix and posintros, comprising at least one lipid and at least one saponin for the preparation of a pharmaceutical for the treatment of cancer. The saponins are preferably from Quillaja Saponaria Molina. Further, the particles are also delivery systems for one or several compounds for cancer treatment with complementary mechanisms. More, the invention discloses kit of parts comprising at least two parts, wherein one part comprising at least one saponin fraction which is hydrophobic having a killing effect on cancer cell; and the other part comprising at least one saponin fraction which is comparatively hydrophilic, stimulating and modulating the immune response.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: May 26, 2015
    Assignee: DUECOM
    Inventors: Kefei Hu, Bror Morein
  • Publication number: 20140335049
    Abstract: Fraction A of Quil A can be used together with at least one other adjuvant for the preparation of an adjuvant composition, where the included adjuvant components act synergistically to enhance level of immune response and have synergistic immunomodulating activity on the co-administered antigens or immunogens. Other adjuvants can comprise saponins, naturally occurring, synthetic or semisynthetic saponin molecules; e.g. saponins and saponin fractions from Quil A, cell wall skeleton, block polymers, TDM, lipopeptides, LPS and LPS-derivatives, Lipid A from different bacterial species and derivatives thereof, e.g., monophosphoryl lipid A, CpG variants, CT and LT or fractions thereof.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Inventors: Bror Morein, Karin Lövgren Bengtsson, Jill Ekström, Katarina Ranlund, Kefei Hu
  • Patent number: 8821881
    Abstract: Fraction A of Quil A can be used together with at least one other adjuvant for the preparation of an adjuvant composition, where the included adjuvant components act synergistically to enhance level of immune response and have synergistic immunomodulating activity on the co-administered antigens or immunogens. Other adjuvants can comprise saponins, naturally occurring, synthetic or semisynthetic saponin molecules; e.g. saponins and saponin fractions from Quil A, cell wall skeleton, blockpolymers, TDM, lipopeptides, LPS and LPS-derivatives, Lipid A from different bacterial species and derivatives thereof, e.g., monophosphoryl lipid A. CpG variants, CT and LT or fractions thereof.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: September 2, 2014
    Assignee: Novavax AB
    Inventors: Bror Morein, Karin Lovgren Bengtsson, Jill Ekstrom, Katarina Ranlund, Kefei Hu
  • Publication number: 20100119591
    Abstract: The present invention relates to the use of lipid containing particles, such as liposomes, iscom and/or iscom matrix and posintros, comprising at least one lipid and at least one saponin for the preparation of a pharmaceutical for the treatment of cancer. The saponins are preferably from Quillaja Saponaria Molin. Further, the particles are also delivery systems for one or several compounds for cancer treatment with complementary mechanisms. More, the invention discloses kit of parts comprising at least two parts, wherein one part comprising at least one saponin fraction which is hydrophobic having a killing effect on cancer cell; and the other part comprising at least one saponin fraction which is comparatively hydrophilic, stimulating and modulating the immune response.
    Type: Application
    Filed: November 20, 2007
    Publication date: May 13, 2010
    Inventors: Kefei Hu, Bror Morein