Patents by Inventor Laurence Dumon

Laurence Dumon 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: 20120135487
    Abstract: The present invention concerns a method for the production of 1,2-propanediol, comprising culturing a microorganism modified for an improved production of 1,2-propanediol in an appropriate culture medium and recovery of the 1,2-propanediol which may be further purified wherein the microorganism expresses a glycerol dehydrogenase (GlyDH) enzyme the inhibition of which activity by NAD+ and/or its substrate and/or its product is reduced. The present invention also relates to a mutant glycerol dehydrogenase (GlyDH) comprising at least one amino acid residue in the protein sequence of the parent enzyme replaced by a different amino acid residue at the same position wherein the mutant enzyme has retained more than 50% of the glycerol dehydrogenase activity of the parent enzyme and the glycerol dehydrogenase activity of the mutant GlyDH is less inhibited by NAD+ and/or by its substrate as compared to the parent enzyme and/or by its product as compared to the parent enzyme.
    Type: Application
    Filed: July 30, 2010
    Publication date: May 31, 2012
    Applicant: METABOLIC EXPLORER
    Inventors: Francois Voelker, Laurence Dumon-Seignovert, Isabelle Meynial-Salles, Philippe Soucaille
  • Publication number: 20120122166
    Abstract: The present invention concerns a method for the production of a biochemical selected among lactic acid, acetol and 1,2-propanediol, comprising culturing a microorganism modified for an improved production of the biochemical selected among lactic acid, acetol and 1,2-propanediol in an appropriate culture medium and recovery of the desired biochemical which may be further purified wherein the microorganism expresses a methylglyoxal synthase (MGS) enzyme which activity is not inhibited by orthophosphate. The present invention concerns a mutant methylglyoxal synthase (MGS) comprising at least one amino acid residue in the protein sequence of the parent enzyme replaced by a different amino acid residue at the same position wherein the mutant enzyme has retained more than 50% of the methylglyoxal synthase activity of the parent enzyme and the methylglyoxal synthase activity of the mutant MGS is not inhibited by orthophosphate as compared to the parent enzyme.
    Type: Application
    Filed: July 30, 2010
    Publication date: May 17, 2012
    Applicant: METABOLIC EXPLORER
    Inventors: Francois Voelker, Laurence Dumon-Seignovert, Philippe Soucaille
  • Publication number: 20120122169
    Abstract: The present invention concerns a method for the production of a biochemical selected among acetol and 1,2-propanediol, 1,3-propanediol, ethylene glycol and 1,4-butanediol comprising culturing a microorganism modified for an improved production of the biochemical selected among acetol and 1,2-propanediol, 1,3-propanediol, ethylene glycol and 1,4-butanediol in an appropriate culture medium and recovery of the desired biochemical which may be further purified wherein the microorganism expresses a YqhD enzyme which catalytic efficiency toward NADPH is increased. The present invention also relates to a mutant YqhD enzyme comprising at least one amino acid residue in the protein sequence of the parent enzyme replaced by a different amino acid residue at the same position wherein the mutant enzyme has retained more than 50% of the YqhD activity of the parent enzyme and the catalytic efficiency toward NADPH of the mutant YqhD is increased as compared with the catalytic efficiency toward NADPH of the parent enzyme.
    Type: Application
    Filed: July 30, 2010
    Publication date: May 17, 2012
    Applicant: METABOLIC EXPLORER
    Inventors: Francois Voelker, Laurence Dumon-Seignovert, Philippe Soucaille
  • Publication number: 20110195082
    Abstract: The invention relates to a product which comprises a C4bp domain of a non-mammalian origin, particularly SEQ ID NO:1, SEQ ID NO:23 or SEQ ID NO:37, or a variant thereof, and an antigen. The product is desirably in the form of a fusion protein. The chicken C4bp domain of SEQ ID NO:1 and SEQ ID NO:23 is also described. Antigens include monomeric antigens such as malarial and influenza antigens. The C4bp domain provides for assembly of multimeric complexes of the antigen, or mixtures thereof. The complexes are useful as vaccines.
    Type: Application
    Filed: April 20, 2011
    Publication date: August 11, 2011
    Applicant: IMAXIO
    Inventors: FERGAL HILL, JEAN-BAPTISTE MARCHAND, LAURENCE DUMON
  • Patent number: 7951376
    Abstract: The invention relates to a product which comprises a C4bp domain of a non-mammalian origin, particularly SEQ ID NO:1, SEQ ID NO:23 or SEQ ID NO:37, or a variant thereof, and an antigen. The product is desirably in the form of a fusion protein. The chicken C4bp domain of SEQ ID NO:1 and SEQ ID NO:23 is also described. Antigens include monomeric antigens such as malarial and influenza antigens. The C4bp domain provides for assembly of multimeric complexes of the antigen, or mixtures thereof. The complexes are useful as vaccines.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: May 31, 2011
    Assignee: Imaxio
    Inventors: Fergal Hill, Jean-Baptiste Marchand, Laurence Dumon
  • Publication number: 20090110693
    Abstract: The invention relates to a product which comprises a C4bp domain of a non-mammalian origin, particularly SEQ ID NO:1, SEQ ID NO:23 or SEQ ID NO:37, or a variant thereof, and an antigen. The product is desirably in the form of a fusion protein. The chicken C4bp domain of SEQ ID NO:1 and SEQ ID NO:23 is also described. Antigens include monomeric antigens such as malarial and influenza antigens. The C4bp domain provides for assembly of multimeric complexes of the antigen, or mixtures thereof. The complexes are useful as vaccines.
    Type: Application
    Filed: May 29, 2008
    Publication date: April 30, 2009
    Applicant: Imaxio
    Inventors: Fergal Hill, Jean-Baptiste Marchand, Laurence Dumon
  • Publication number: 20070104726
    Abstract: The present invention provides a product comprising: a first component which is a scaffold; a second component which is an adjuvant, preferably a polypeptide which is a ligand for CD21 or a cell surface molecule on B cells or T cells or follicular dendritic or other antigen presenting cells; and a third component which is an antigen.
    Type: Application
    Filed: August 12, 2003
    Publication date: May 10, 2007
    Applicant: AVIDIS SA
    Inventors: Pierre Andreoletti, Laurence Dumon, Fergal Hill, Michel Julien, Jean Marchand, Emmanuel Risse