Patents by Inventor Leander Meuris

Leander Meuris 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: 11293012
    Abstract: The present application relates to the field of glyco-engineering and, more specifically, to eukaryotic cells wherein both an endoglucosaminidase is present and made deficient in UDP-galactose 4-epimerase (GalE). Typically, a glycoprotein is also present in the cells. These cells can be used to deglycosylate or partly deglycosylate the (exogenous) glycoprotein, in particular, without the need for adding an extra enzyme. Methods are also provided for the application of these cells in protein production.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: April 5, 2022
    Assignees: VIB VZW, Universiteit Gent
    Inventors: Nico Callewaert, Leander Meuris, Francis Santens
  • Patent number: 11098337
    Abstract: The disclosure relates to the field of glyco-engineering, more specifically, to eukaryotic cells wherein both an endoglucosaminidase and a glycoprotein are present. These cells can be used to deglycosylate or partly deglycosylate the (exogenous) glycoprotein, in particular, without the need for adding an extra enzyme. Methods are also provided for the application of these cells in protein production. According to one specific aspect, the eukaryotic cells are glyco-engineered yeast cells in which, additionally, at least one exogenous enzyme needed for complex glycosylation is present, e.g., allowing easier separation of differentially glycosylated glycoproteins.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: August 24, 2021
    Assignees: VIB VZW, Universiteit Gent
    Inventors: Nico L. M. Callewaert, Karen De Pourcq, Steven Geysens, Leander Meuris
  • Publication number: 20180187177
    Abstract: The present application relates to the field of glyco-engineering and, more specifically, to eukaryotic cells wherein both an endoglucosaminidase is present and made deficient in UDP-galactose 4-epimerase (GalE). Typically, a glycoprotein is also present in the cells. These cells can be used to deglycosylate or partly deglycosylate the (exogenous) glycoprotein, in particular, without the need for adding an extra enzyme. Methods are also provided for the application of these cells in protein production.
    Type: Application
    Filed: July 8, 2016
    Publication date: July 5, 2018
    Inventors: Nico Callewaert, Leander Meuris, Francis Santens
  • Publication number: 20140345004
    Abstract: The disclosure relates to the field of glyco-engineering, more specifically, to eukaryotic cells wherein both an endoglucosaminidase and a glycoprotein are present. These cells can be used to deglycosylate or partly deglycosylate the (exogenous) glycoprotein, in particular, without the need for adding an extra enzyme. Methods are also provided for the application of these cells in protein production. According to one specific aspect, the eukaryotic cells are glyco-engineered yeast cells in which, additionally, at least one exogenous enzyme needed for complex glycosylation is present, e.g., allowing easier separation of differentially glycosylated glycoproteins.
    Type: Application
    Filed: July 2, 2014
    Publication date: November 20, 2014
    Inventors: Nico L.M. CALLEWAERT, Karen DE POURCQ, Steven GUYSENS, Leander MEURIS
  • Patent number: 8815580
    Abstract: The present application relates to the field of glyco-engineering, more specifically to eukaryotic cells wherein both an endoglucosaminidase and a glycoprotein are present. These cells can be used to deglycosylate or partly deglycosylate the (exogenous) glycoprotein, in particular without the need for adding an extra enzyme. Methods are also provided for the application of these cells in protein production. According to one specific aspect, the eukaryotic cells and methods are glyco-engineered yeast cells in which additionally at least one exogenous enzyme needed for complex glycosylation is present, e.g. allowing easier separation of differentially glycosylated glycoproteins.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: August 26, 2014
    Assignees: VIB VZW, Universiteit Gent
    Inventors: Nico L. M. Callewaert, Karen De Pourcq, Steven Geysens, Leander Meuris
  • Publication number: 20110191913
    Abstract: The present application relates to the field of glyco-engineering, more specifically to eukaryotic cells wherein both an endoglucosaminidase and a glycoprotein are present. These cells can be used to deglycosylate or partly deglycosylate the (exogenous) glycoprotein, in particular without the need for adding an extra enzyme. Methods are also provided for the application of these cells in protein production. According to one specific aspect, the eukaryotic cells and methods are glyco-engineered yeast cells in which additionally at least one exogenous enzyme needed for complex glycosylation is present, e.g. allowing easier separation of differentially glycosylated glycoproteins.
    Type: Application
    Filed: August 10, 2009
    Publication date: August 4, 2011
    Applicants: VIB VZW, UNIVERSITEIT GENT
    Inventors: Nico L.M. Callewaert, Karen De Pourcq, Steven Geysens, Leander Meuris