Patents by Inventor Leonard William Seymour

Leonard William 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: 20190233536
    Abstract: A modified adenovirus, in particular Enadenotucirev (EnAd), armed with at least two bispecific T cell engager (BiTE™) each comprising at least two binding domains, wherein at least one of the domains is specific for a surface antigen on an immune cell of interest, such as a T-cell of interest. Also provided are a composition, such as a pharmaceutical formulation comprising the virus, use of the virus and virus formulations for treatment, such as in the treatment of cancer. The disclosure also extends to processes for preparing the virus.
    Type: Application
    Filed: August 29, 2017
    Publication date: August 1, 2019
    Inventors: Brian Robert CHAMPION, Alice Claire Noel BROMLEY, Joshua David FREEDMAN, Kerry David FISHER, Leonard William SEYMOUR
  • Publication number: 20190194690
    Abstract: A modified adenovirus, in particular Enadenotucirev (EnAd), armed with a bispecific T cell engager (BiTE™) comprising at least two binding domains, wherein at least one of the domains is specific for a surface antigen on a T-cell of interest. Also provided are a composition, such as a pharmaceutical formulation comprising the virus, use of the virus and virus formulations for treatment, such as in the treatment of cancer. The disclosure also extends to processes for preparing the virus.
    Type: Application
    Filed: August 29, 2017
    Publication date: June 27, 2019
    Inventors: Brian Robert CHAMPION, Alice Claire Noel BROMLEY, Joshua David FREEDMAN, Kerry David FISHER, Leonard William SEYMOUR
  • Patent number: 8815563
    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: Grant
    Filed: July 18, 2005
    Date of Patent: August 26, 2014
    Assignee: PsiOxus Therapeutics Limited
    Inventors: Benjamin Guy Davis, Leonard William Seymour, Kerry Fisher
  • Publication number: 20110243939
    Abstract: The present invention provides a polymer modified nucleic acid vector in which the nucleic acid vector is covalently linked to a polymer, which polymer comprises one or more positively charged quaternary amino groups, wherein the nucleic acid vector is a micro-organism selected from the group consisting of a virus, a bacteria or a bacteriophage, a fungus, a spore, a eukaryotic cell nucleus or other micro-organism fragment or a component containing genetic information, and wherein (a) the polymer and/or the linkages between it and the nucleic acid vector are hydrolytically, reducibly or enzymatically degradable; and/or (b) wherein each of the positively charged quaternary amino groups is linked to the polymer backbone via one or more degradable or biodegradable linkages.
    Type: Application
    Filed: December 11, 2009
    Publication date: October 6, 2011
    Inventors: Leonard William Seymour, Kerry Fisher, Karel Ulbrich, Vladimir Subr
  • Publication number: 20110243897
    Abstract: The present invention provides a polymer modified nucleic acid vector in which the nucleic acid vector is covalently linked to a polymer, which polymer comprises one or more positively charged quaternary amino groups.
    Type: Application
    Filed: December 11, 2008
    Publication date: October 6, 2011
    Inventors: Leonard William Seymour, Karel Ulbrich