Patents by Inventor Ioannis VOULGARIS

Ioannis VOULGARIS 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).

  • Method of producing a recombinant protein
    Patent number: 11667887
    Abstract: The present invention relates to a method of producing a recombinant protein in a host cell comprising adding Polyethyleneimine (PEI) during cell culture. Addition of PEI to the cell culture as a fermentation enhancer can result in reducing the viscosity of the cell culture, and/or increasing the extracellular concentration of the recombinant protein, and/or reducing the duration of cell culture to the point of harvest or protein recovery.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: June 6, 2023
    Assignee: Glaxo Group Limited
    Inventors: Gary Brian Finka, Michael Hoare, Mark Uden, Ioannis Voulgaris
  • Method of producing a recombinant protein
    Patent number: 11098312
    Abstract: The present invention relates to a recombinant signal sequence derived from E. coli. The invention also relates to a fusion protein comprising the signal sequence, a recombinant protein and methods of producing the recombinant protein. The recombinant signal sequence can be used to provide a method for controlling the viscosity of the fermentation, and/or controlling basal (pre-induction) expression of the recombinant protein.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: August 24, 2021
    Assignee: GLAXOSMITHKLINE INTELLECTUAL PROPERTY DEVELOPMENT LIMITED
    Inventors: Robyn Alexandra Emmins, Gary Brian Finka, Michael Hoare, Alan Peter Lewis, William John Kenneth Lewis, Adam Daniel McInally, Mark Uden, Ioannis Voulgaris
  • Method of Producing a Recombinant Protein
    Publication number: 20190177734
    Abstract: The present invention relates to a recombinant signal sequence derived from E. coli. The invention also relates to a fusion protein comprising the signal sequence, a recombinant protein and methods of producing the recombinant protein. The recombinant signal sequence can be used to provide a method for controlling the viscosity of the fermentation, and/or controlling basal (pre-induction) expression of the recombinant protein.
    Type: Application
    Filed: May 4, 2017
    Publication date: June 13, 2019
    Inventors: Robyn Alexandra EMMINS, Gary Brian FINKA, Michael HOARE, Alan Peter LEWIS, William John Kenneth LEWIS, Adam Daniel McINALLY, Mark UDEN, Ioannis VOULGARIS
  • Method of Producing a Recombinant Protein
    Publication number: 20180135008
    Abstract: The present invention relates to a method of producing a recombinant protein in a host cell comprising adding Polyethyleneimine (PEI) during cell culture. Addition of PEI to the cell culture as a fermentation enhancer can result in reducing the viscosity of the cell culture, and/or increasing the extracellular concentration of the recombinant protein, and/or reducing the duration of cell culture to the point of harvest or protein recovery.
    Type: Application
    Filed: May 13, 2016
    Publication date: May 17, 2018
    Inventors: Gary Brian FINKA, Michael HOARE, Mark UDEN, Ioannis VOULGARIS