Patents by Inventor Leonard Seymour

Leonard Seymour 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: 20210023208
    Abstract: Embodiments of a novel system for delivering an expression vector encoding an antigen to a subject that allows for spatiotemporal control over stimulation of the subject's immune response to the antigen are provided. In some embodiments, the expression vector delivery system includes a polymer linked to an adjuvant in prodrug form that can form polymer nanoparticles and enter a cell (such as an immune cell) under physiological conditions. In some embodiments, the adjuvant is linked to the polymer by an enzyme degradable labile bond, the cleavage of which activates the adjuvant to stimulate an immune response.
    Type: Application
    Filed: October 6, 2020
    Publication date: January 28, 2021
    Applicants: The United States of America, as represented by the Secretary, Department of Health and Human Servic, The Chancellor, Masters and Scholars of the University of Oxford
    Inventors: Robert Seder, Geoffrey Lynn, Leonard Seymour
  • Publication number: 20210000934
    Abstract: The invention relates to an adjuvant comprising Pattern Recognition Receptor (PRR) agonist molecules linked to polymer chains that are capable of undergoing particle formation in aqueous conditions, or in aqueous conditions in response to external stimuli; and methods of treatment or prevention of disease using such an adjuvant.
    Type: Application
    Filed: June 22, 2020
    Publication date: January 7, 2021
    Applicants: Oxford University Innovation Limited, The U.S.A., as Represented by the Secretary, Department of Health and Human Services
    Inventors: Kerry Fisher, Richard Laga, Geoffrey Lynn, Leonard Seymour, Robert Seder
  • Patent number: 10799580
    Abstract: Embodiments of a novel system for delivering an expression vector encoding an antigen to a subject that allows for spatiotemporal control over stimulation of the subject's immune response to the antigen are provided. In some embodiments, the expression vector delivery system includes a polymer linked to an adjuvant in prodrug form that can form polymer nanoparticles and enter a cell (such as an immune cell) under physiological conditions. In some embodiments, the adjuvant is linked to the polymer by an enzyme degradable labile bond, the cleavage of which activates the adjuvant to stimulate an immune response.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: October 13, 2020
    Assignees: The United States of America, as represented by the Secretary, Department of Health and Human Services, The Chancellor, Masters and Scholars of the University of Oxford
    Inventors: Robert Seder, Geoffrey Lynn, Leonard Seymour
  • Publication number: 20180280497
    Abstract: Embodiments of a novel system for delivering an expression vector encoding an antigen to a subject that allows for spatiotemporal control over stimulation of the subject's immune response to the antigen are provided. In some embodiments, the expression vector delivery system includes a polymer linked to an adjuvant in prodrug form that can form polymer nanoparticles and enter a cell (such as an immune cell) under physiological conditions. In some embodiments, the adjuvant is linked to the polymer by an enzyme degradable labile bond, the cleavage of which activates the adjuvant to stimulate an immune response.
    Type: Application
    Filed: September 9, 2016
    Publication date: October 4, 2018
    Applicants: The Chancellor, Masters and Scholars of the University of Oxford
    Inventors: Robert SEDER, Geoffrey LYNN, Leonard SEYMOUR
  • Publication number: 20170304420
    Abstract: The invention relates to an adjuvant comprising Pattern Recognition Receptor (PRR) agonist molecules linked to polymer chains that are capable of undergoing particle formation in aqueous conditions, or in aqueous conditions in response to external stimuli; and methods of treatment or prevention of disease using such an adjuvant.
    Type: Application
    Filed: October 9, 2015
    Publication date: October 26, 2017
    Applicants: Oxford University Innovation Limited, THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERV
    Inventors: Kerry Fisher, Richard Laga, Geoffrey Lynn, Leonard Seymour, Robert Seder
  • Publication number: 20080069802
    Abstract: Modified viral particles wherein the viral particles, typically adenoviral particles, are modified by glycosylation and the use of the modified viral particles to deliver heterologous nucleic acid to cells. Also disclosed are pharmaceutical compositions comprising the same and method of treatment using the same.
    Type: Application
    Filed: July 18, 2005
    Publication date: March 20, 2008
    Inventors: Benjamin Davis, Leonard Seymour, Kerry Fisher
  • Patent number: 7051453
    Abstract: A system for cleaning a particulate trap comprises locating the trap in a chamber and forcing cleaning air through the trap. The air and removed particulates is extracted from the trap towards a filter. The expelled air essentially without the removed particulates from the chamber, the removed particulates being essentially trapped in the filter. The trap is locatable about a longitudinal axis such that air is urged in a longitudinal direction through the trap. The trap is supportable on at least one rotatable roller to affect rotation about the axis. A motor and blower draws air from the chamber and an air pressure differential about the filter causes the particulate to be directed through the filter and excess air is pumped out of the blower by the motor operating the blower.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: May 30, 2006
    Assignee: City of Los Angeles
    Inventors: William Raphael Schmitt, Cary M. Ellsworth, Ben Richard Baca, Michael Angel De Leon, Brian Patrick Cunningham, Leonard Seymour Walker