Patents Assigned to Vivalis
  • Patent number: 8445193
    Abstract: A microwell array chip that has multiple microwells and is employed to contain a single lymphocyte specimen in each microwell and detect antigen-specific lymphocytes in single units; wherein the microwell array chip is of a shape and of dimensions where only one lymphocyte is contained in each microwell. A method of detecting antigen-specific lymphocytes comprising the steps of adding antigen to each microwell in the above microwell array chip, stimulating the lymphocyte specimen, and detecting lymphocyte specimens reacting with the antigen.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: May 21, 2013
    Assignee: Vivalis
    Inventors: Atsushi Muraguchi, Hiroyuki Kishi, Eiichi Tamiya, Masayasu Suzuki
  • Publication number: 20120238001
    Abstract: The present invention relates to the development and manufacturing of viral vaccines. In particular, the invention relates to the field of industrial production of viral vectors and vaccines, more in particular to the use of avian embryonic stem cells, preferably the EBx® cell line derived from chicken embryonic stem cells, for the production of viral vectors and viruses. The invention is particularly useful for the industrial production of viral vaccines to prevent viral infection of humans and animals.
    Type: Application
    Filed: March 17, 2012
    Publication date: September 20, 2012
    Applicant: VIVALIS
    Inventors: Majid Mehtali, Patrick Champion-Arnaud, Arnaud Leon
  • Publication number: 20120189579
    Abstract: The present invention concerns a substituted pyrrolidinone of the following formula I or a salt, solvate, tautomer, isotope, enantiomer, diastereoisomer or racemic mixture thereof: (I), for the treatment of hepatitis C.
    Type: Application
    Filed: July 9, 2010
    Publication date: July 26, 2012
    Applicant: VIVALIS
    Inventors: Amaya Berecibar, Philippe Guedat, Isabelle Valarche, Céline Mohamed-Arab, Christophe Matt
  • Publication number: 20120128630
    Abstract: The present invention concerns a 1-(6 members azo-heterocyclic)-pyrrolin-2-one compound of the following formula I or a salt, solvate, tautomer, isotope, enantiomer, diastereoisomer or racemic mixture thereof: the pharmaceutical composition thereof and their therapeutic use as inhibitors of Hepatitis C NS5B polymerase.
    Type: Application
    Filed: July 9, 2010
    Publication date: May 24, 2012
    Applicant: VIVALIS
    Inventors: Amaya Berecibar, Philippe Guedat, Céline Mohamed-Arab
  • Patent number: 8148132
    Abstract: The present invention relates to the development and manufacturing of viral vaccines, particularly the industrial production of viral vectors and vaccines, and more particularly the use of avian embryonic stem cells, preferably the EBx cell line derived from chicken embryonic stem cells, for the production of viral vectors and viruses; the invention is particularly useful for the industrial production of viral vaccines to prevent viral infection of humans and animals.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: April 3, 2012
    Assignee: Vivalis
    Inventors: Majid Mehtali, Patrick Champion-Arnaud, Arnaud Leon
  • Publication number: 20120070893
    Abstract: The present invention relates to a method for producing avian cell lines, comprising gradual or complete withdrawal of growth factors, serum and/or feeder layer so that the established lines are adherent or nonadherent cells capable of proliferating indefinitely in a basic culture medium. The invention also relates to the cells derived from such lines which are particularly useful for the production of substances of interest.
    Type: Application
    Filed: March 3, 2010
    Publication date: March 22, 2012
    Applicant: VIVALIS
    Inventors: Bertrand PAIN, Fabienne Guehenneux
  • Publication number: 20110294209
    Abstract: The present invention relates to a method for producing avian cell lines, comprising gradual or complete withdrawal of growth factors, serum and/or feeder layer so that the established lines are adherent or nonadherent cells capable of proliferating indefinitely in a basic culture medium. The invention also relates to the cells derived from such lines which are particularly useful for the production of substances of interest.
    Type: Application
    Filed: August 9, 2011
    Publication date: December 1, 2011
    Applicant: VIVALIS
    Inventors: Bertrand Pain, Fabienne Guehenneux
  • Publication number: 20110251085
    Abstract: The present invention relates to the field of virology. More precisely, the invention provides a method of determining the ability of a test compound to modulate the biological activity of a variant of a target protein, wherein said test compound is previously known to modulate the biological activity of said protein. This invention is useful to determine whether a drug candidate, such as anti-viral compounds (eg. against hepatitis C virus: NS5B, NS3), active against a target protein is active against a variant of said protein (eg. polymorphisms, genotypes or mutants).
    Type: Application
    Filed: March 16, 2009
    Publication date: October 13, 2011
    Applicant: VIVALIS
    Inventors: Mehdi Lahmar, Isabelle Valarche, Majid Mehtali
  • Publication number: 20100226912
    Abstract: The invention generally relates to the field of recombinant protein production. More particularly, the invention relates to the use of avian embryonic derived stem cell lines, named EBx®, for the production of proteins and more specifically glycoproteins such as antibodies. The invention is useful for the production of monoclonal IgG1 antibody subtype having high cell-mediated cytotoxic activity. The invention relates to the use of such antibodies as a drug to treat cancers and inflammatory diseases.
    Type: Application
    Filed: May 21, 2008
    Publication date: September 9, 2010
    Applicant: VIVALIS
    Inventor: Majid Mehtali
  • Publication number: 20100221825
    Abstract: The present invention relates to a method for producing avian cell lines, comprising gradual or complete withdrawal of growth factors, serum and/or feeder layer so that the established lines are adherent or nonadherent cells capable of proliferating indefinitely in a basic culture medium. The invention also relates to the cells derived from such lines which are particularly useful for the production of substances of interest.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 2, 2010
    Applicant: VIVALIS
    Inventors: Bertrand PAIN, Fabienne Guehenneux
  • Patent number: 7771980
    Abstract: The present invention relates to a method for replicating poxviruses such as vaccinia virus comprising the steps of inoculating avian embryonic stem cells with viral particles and culturing said cells in a basal medium until cells lysis occurs and newly produced viral particles are released in said medium.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: August 10, 2010
    Assignee: Vivalis
    Inventors: Fabienne Guehenneux, Bertrand Pain
  • Publication number: 20100111999
    Abstract: The present invention relates to a method for replicating poxviruses such as vaccinia virus comprising the steps of inoculating avian embryonic stem cells with viral particles and culturing said cells in a basal medium until cells lysis occurs and newly produced viral particles are released in said medium.
    Type: Application
    Filed: November 3, 2009
    Publication date: May 6, 2010
    Applicant: VIVALIS
    Inventors: Fabienne Guehenneux, Bertrand Pain
  • Publication number: 20100062489
    Abstract: The present invention relates to the development and manufacturing of viral vaccines. In particular, the invention relates to the field of industrial production of viral vectors and vaccines, more in particular to the use of avian embryonic stem cells, preferably the EBx® cell line derived from duck embryonic stem cells, for the production of viral vectors and viruses. The invention is particularly useful for the industrial production of viral vaccines to prevent viral infection of humans and animals.
    Type: Application
    Filed: April 23, 2008
    Publication date: March 11, 2010
    Applicant: VIVALIS
    Inventors: Fabienne Guehenneux, Karine Moreau, Magali Esnault, Majid Mehtali
  • Publication number: 20090239286
    Abstract: The present invention relates to a method for replicating poxviruses such as vaccinia virus comprising the steps of inoculating avian embryonic stem cells with viral particles and culturing said cells in a basal medium until cells lysis occurs and newly produced viral particles are released in said medium.
    Type: Application
    Filed: October 1, 2008
    Publication date: September 24, 2009
    Applicant: VIVALIS
    Inventors: Fabienne GUEHENNEUX, Bertrand Pain
  • Publication number: 20090239297
    Abstract: The present invention relates to a method for producing avian cell lines, comprising gradual or complete withdrawal of growth factors, serum and/or feeder layer so that the established lines are adherent or nonadherent cells capable of proliferating indefinitely in a basic culture medium. The invention also relates to the cells derived from such lines which are particularly useful for the production of substances of interest.
    Type: Application
    Filed: January 8, 2009
    Publication date: September 24, 2009
    Applicant: VIVALIS
    Inventors: Bertrand PAIN, Fabienne Guehenneux
  • Publication number: 20090081251
    Abstract: The present invention relates to the development and manufacturing of viral vaccines, particularly the industrial production of viral vectors and vaccines, and more particularly the use of avian embryonic stem cells, preferably the EBx cell line derived from chicken embryonic stem cells, for the production of viral vectors and viruses; the invention is particularly useful for the industrial production of viral vaccines to prevent viral infection of humans and animals.
    Type: Application
    Filed: April 11, 2006
    Publication date: March 26, 2009
    Applicant: VIVALIS
    Inventors: Majid Mehtali, Patrick Champion-Arnaud, Arnaud Leon
  • Publication number: 20080274125
    Abstract: The present invention concerns the field of biology and virology. In particular, the invention concerns a method for obtaining human cell lines, in particular human stem cells derived from human embryonic stem cells, the method comprising separation from the serum, the feeder layer and at least one growth factor. The cell lines are capable of proliferating indefinitely in a basic culture medium. The invention also concerns the use of the cells derived from such cell lines for virus replication, and more particularly for producing human or veterinary vaccines, as well as for producing recombinant proteins of therapeutic interest.
    Type: Application
    Filed: December 8, 2005
    Publication date: November 6, 2008
    Applicant: VIVALIS
    Inventor: Fabienne Guehenneux
  • Patent number: 7432101
    Abstract: The present invention relates to a method for replicating pox viruses such as vaccinia virus comprising the steps of inoculating avian embryonic stem cells with viral particles and culturing said cells in a basal medium until cells lysis occurs and newly produced viral particles are released in said medium.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: October 7, 2008
    Assignee: Vivalis
    Inventors: Fabienne Guehenneux, Bertrand Pain
  • Publication number: 20060233834
    Abstract: The present invention relates to a method for replicating pox viruses such as vaccinia virus comprising the steps of inoculating avian embryonic stem cells with viral particles and culturing said cells in a basal medium until cells lysis occurs and newly produced viral particles are released in said medium.
    Type: Application
    Filed: July 22, 2004
    Publication date: October 19, 2006
    Applicant: VIVALIS
    Inventors: Fabienne Guehenneux, Bertrand Pain
  • Publication number: 20040058441
    Abstract: The present invention relates to a method for producing avian cell lines, comprising gradual or complete withdrawal of growth factors, serum and/or feeder layer so that the established lines are adherent or nonadherent cells capable of proliferating indefinitely in a basic culture medium. The invention also relates to the cells derived from such lines which are particularly useful for the production of substances of interest.
    Type: Application
    Filed: July 24, 2003
    Publication date: March 25, 2004
    Applicant: VIVALIS
    Inventors: Bertrand Pain, Fabienne Guehenneux