Patents by Inventor Razwan HANIF

Razwan HANIF 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: 11834514
    Abstract: The present invention provides method for increasing the percentage of monomer in a composition of recombinantly expressed antibody molecules characterised in that the antibody molecule comprises at least one Fv with specificity for an antigen of interest comprising one VH and one VL wherein said VH and VL are connected directly or indirectly via one or more linkers and are stabilised by a disulfide bond therebetween, said method comprises a) a thermal conversion step of holding the composition comprising the antibody molecule at a temperature in the range 30 to 60° C. for a period of at least 1 hour, wherein step a) is performed in the presence of a reducing agent or after treatment with a reducing agent.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: December 5, 2023
    Assignee: UCB BIOPHARMA SRL
    Inventors: Sam Philip Heywood, Gavin Barry Wild, Christopher John Le Page, Razwan Hanif
  • Patent number: 11786593
    Abstract: The present invention provides method of increasing the percentage of monomer in a composition of recombinantly expressed antibody molecules characterised in that the antibody molecule comprises at least one Fv with specificity for an antigen of interest comprising one VH and one VL wherein said VH and VL are connected directly or indirectly via one or more linkers and are stabilised by a disulfide bond therebetween, said method comprises: a) a conversion step of treating the composition with a denaturant selected from urea and/or Guanidine hydrochloride; b) wherein step a) is performed in the presence of a reducing agent or after treatment with a reducing agent.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: October 17, 2023
    Assignee: UCB BIOPHARMA SRL
    Inventors: Sam Philip Heywood, Gavin Barry Wild, Razwan Hanif, Christopher John Le Page
  • Publication number: 20210079120
    Abstract: The present invention provides method for increasing the percentage of monomer in a composition of recombinantly expressed antibody molecules characterised in that the antibody molecule comprises at least one Fv with specificity for an antigen of interest comprising one VH and one VL wherein said VH and VL are connected directly or indirectly via one or more linkers and are stabilised by a disulfide bond therebetween, said method comprises a) a thermal conversion step of holding the composition comprising the antibody molecule at a temperature in the range 30 to 60° C. for a period of at least 1 hour, wherein step a) is performed in the presence of a reducing agent or after treatment with a reducing agent.
    Type: Application
    Filed: October 23, 2020
    Publication date: March 18, 2021
    Inventors: SAM PHILIP HEYWOOD, GAVIN BARRY WILD, CHRISTOPHER JOHN LE PAGE, RAZWAN HANIF
  • Publication number: 20210069328
    Abstract: The present invention provides method of increasing the percentage of monomer in a composition of recombinantly expressed antibody molecules characterised in that the antibody molecule comprises at least one Fv with specificity for an antigen of interest comprising one VH and one VL wherein said VH and VL are connected directly or indirectly via one or more linkers and are stabilised by a disulfide bond therebetween, said method comprises: a) a conversion step of treating the composition with a denaturant selected from urea and/or Guanidine hydrochloride; b) wherein step a) is performed in the presence of a reducing agent or after treatment with a reducing agent.
    Type: Application
    Filed: October 23, 2020
    Publication date: March 11, 2021
    Inventors: SAM PHILIP HEYWOOD, GAVIN BARRY WILD, RAZWAN HANIF, CHRISTOPHER JOHN LE PAGE
  • Patent number: 10829565
    Abstract: The present invention provides method for increasing the percentage of monomer in a composition of recombinantly expressed antibody molecules characterised in that the antibody molecule comprises at least one Fv with specificity for an antigen of interest comprising one VH and one VL wherein said VH and VL are connected directly or indirectly via one or more linkers and are stabilised by a disulfide bond therebetween, said method comprises a) a thermal conversion step of holding the composition comprising the antibody molecule at a temperature in the range 30 to 60° C. for a period of at least 1 hour, wherein step a) is performed in the presence of a reducing agent or after treatment with a reducing agent.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: November 10, 2020
    Assignee: UCB BIOPHARMA SPRL
    Inventors: Sam Philip Heywood, Gavin Barry Wild, Christopher John Le Page, Razwan Hanif
  • Patent number: 10828366
    Abstract: The present invention provides method of increasing the percentage of monomer in a composition of recombinantly expressed antibody molecules characterised in that the antibody molecule comprises at least one Fv with specificity for an antigen of interest comprising one VH and one VL wherein said VH and VL are connected directly or indirectly via one or more linkers and are stabilised by a disulfide bond therebetween, said method comprises: a) a conversion step of treating the composition with a denaturant selected from urea and/or Guanidine hydrochloride; b) wherein step a) is performed in the presence of a reducing agent or after treatment with a reducing agent.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: November 10, 2020
    Assignee: UCB BIOPHARMA SPRL
    Inventors: Sam Philip Heywood, Gavin Barry Wild, Razwan Hanif, Christopher John Le Page
  • Publication number: 20180142039
    Abstract: The present invention provides method for increasing the percentage of monomer in a composition of recombinantly expressed antibody molecules characterised in that the antibody molecule comprises at least one Fv with specificity for an antigen of interest comprising one VH and one VL wherein said VH and VL are connected directly or indirectly via one or more linkers and are stabilised by a disulfide bond therebetween, said method comprises a) a thermal conversion step of holding the composition comprising the antibody molecule at a temperature in the range 30 to 60° C. for a period of at least 1 hour, wherein step a) is performed in the presence of a reducing agent or after treatment with a reducing agent.
    Type: Application
    Filed: April 22, 2016
    Publication date: May 24, 2018
    Inventors: Sam Philip HEYWOOD, Gavin Barry WILD, Christopher John LE PAGE, Razwan HANIF
  • Publication number: 20180117153
    Abstract: The present invention provides method of increasing the percentage of monomer in a composition of recombinantly expressed antibody molecules characterised in that the antibody molecule comprises at least one Fv with specificity for an antigen of interest comprising one VH and one VL wherein said VH and VL are connected directly or indirectly via one or more linkers and are stabilised by a disulfide bond therebetween, said method comprises: a) a conversion step of treating the composition with a denaturant selected from urea and/or Guanidine hydrochloride; b) wherein step a) is performed in the presence of a reducing agent or after treatment with a reducing agent.
    Type: Application
    Filed: April 22, 2016
    Publication date: May 3, 2018
    Inventors: Sam Philip HEYWOOD, Gavin Barry WILD, Razwan HANIF, Christopher John LE PAGE