Patents by Inventor Alain Francon

Alain Francon 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: 9878028
    Abstract: The present invention relates to a process for stabilizing an adjuvant containing vaccine composition, an adjuvanted vaccine composition in dry form and in particular a process for stabilizing an influenza vaccine composition, particularly an adjuvanted influenza vaccine composition in dry form.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: January 30, 2018
    Assignee: Sanofi Pasteur SA
    Inventors: Pierre Chouvenc, Alain Francon
  • Publication number: 20160235831
    Abstract: The present invention relates to a process for stabilizing an adjuvant containing vaccine composition, an adjuvanted vaccine composition in dry form and in particular a process for stabilizing an influenza vaccine composition, particularly an adjuvanted influenza vaccine composition in dry form.
    Type: Application
    Filed: February 22, 2016
    Publication date: August 18, 2016
    Applicant: Sanofi Pasteur SA
    Inventors: Pierre Chouvenc, Alain Francon
  • Patent number: 9358294
    Abstract: The subject matter of the invention is a method for preparing a vaccine composition comprising at least aluminum oxyhydroxide (AlOOH), and at least the hepatitis B surface antigen and the Haemophilus influenzae type b antigen. According to the invention, the hepatitis B surface antigen is kept adsorbed on the AlOOH, whereas the Hib antigen is kept nonadsorbed. To this end: the hepatitis B surface antigen is adsorbed onto AlOOH in order to obtain an AlOOH/HBsAg complex, then—said AlOOH/HBsAg complex is mixed with the Hib antigen in the presence of cationic amino acids at a concentration of at least 100 mg/l, and of phosphate ions at a concentration of 35 to 45 mMol/l.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: June 7, 2016
    Assignee: SANOFI PASTEUR
    Inventors: Landry Bertaux, Isabelle Chacornac, Alain Françon, Jean-François Hau, Sandrine Lentsch Graf
  • Patent number: 9295721
    Abstract: The present invention relates to a process for stabilizing an adjuvant containing vaccine composition, an adjuvanted vaccine composition in dry form and in particular a process for stabilizing an influenza vaccine composition, particularly an adjuvanted influenza vaccine composition in dry form.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: March 29, 2016
    Assignee: Sanofi Pasteur SA
    Inventors: Pierre Chouvenc, Alain Francon
  • Patent number: 9028839
    Abstract: The invention relates to a vaccine composition comprising: a) inactivated whole virus, and b) a stabilizing excipient which comprises: i. a buffer solution, ii. a mixture of essential and nonessential amino acids, iii. a disaccharide, iv. a polyol, v. a chelating agent, vi. urea or a urea derivative, and vii. a nonionic surfactant.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: May 12, 2015
    Assignee: Sanofi Pasteur S.A.
    Inventors: Alain Francon, Michel Chevalier, Nadege Moreno, Eric Calvosa, Sandrine Cigarini, Virginie Fabre
  • Publication number: 20140370049
    Abstract: The subject matter of the invention is a method for preparing a vaccine composition comprising at least aluminium oxyhydroxide (AlOOH), and at least the hepatitis B surface antigen and the Haemophilus influenzae type b antigen. According to the invention, the hepatitis B surface antigen is kept adsorbed on the AlOOH, whereas the Hib antigen is kept nonadsorbed. To this end: the hepatitis B surface antigen is adsorbed onto AlOOH in order to obtain an AlOOH/HBsAg complex, then—said AlOOH/HBsAg complex is mixed with the Hib antigen in the presence of cationic amino acids at a concentration of at least 100 mg/l, and of phosphate ions at a concentration of 35 to 45 mMol/l.
    Type: Application
    Filed: January 17, 2013
    Publication date: December 18, 2014
    Inventors: Landry Bertaux, Isabelle Chacornac, Alain Françon, Jean-François Hau, Sandrine Lentsch Graf
  • Publication number: 20140154329
    Abstract: The present invention relates to a process for stabilizing an adjuvant containing vaccine composition, an adjuvanted vaccine composition in dry form and in particular a process for stabilizing an influenza vaccine composition, particularly an adjuvanted influenza vaccine composition in dry form.
    Type: Application
    Filed: September 19, 2013
    Publication date: June 5, 2014
    Applicant: Sanofi Pasteur SA
    Inventors: Pierre Chouvenc, Alain Francon
  • Publication number: 20140037684
    Abstract: The invention relates to a vaccine composition comprising: a) inactivated whole virus, and b) a stabilizing excipient which comprises: i. a buffer solution, ii. a mixture of essential and nonessential amino acids, iii. a disaccharide, iv. a polyol, v. a chelating agent, vi. urea or a urea derivative, and vii. a nonionic surfactant.
    Type: Application
    Filed: October 8, 2013
    Publication date: February 6, 2014
    Applicant: Sanofi Pasteur
    Inventors: Alain Francon, Michel Chevalier, Nadege Moreno, Eric Calvosa, Sandrine Cigarini, Virginie Fabre
  • Patent number: 8557253
    Abstract: The invention relates to a vaccine composition comprising: a) inactivated whole virus, and b) a stabilizing excipient which comprises: i. a buffer solution, ii. a mixture of essential and nonessential amino acids, iii. a disaccharide, iv. a polyol, v. a chelating agent, vi. urea or a urea derivative, and vii. a nonionic surfactant.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: October 15, 2013
    Assignee: Sanofi Pasteur SA
    Inventors: Alain Francon, Michel Chevalier, Nadege Moreno, Eric Calvosa, Sandrine Cigarini, Virginie Fabre
  • Patent number: 8551527
    Abstract: The present invention relates to a process for stabilizing an adjuvant containing vaccine composition, an adjuvanted vaccine composition in dry form and in particular a process for stabilizing an influenza vaccine composition, particularly an adjuvanted influenza vaccine composition in dry form.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: October 8, 2013
    Assignee: Sanofi Pasteur S.A.
    Inventors: Pierre Chouvenc, Alain Francon
  • Publication number: 20130028934
    Abstract: The present invention relates to stabilizers for compositions, including immunogenic compositions, such as vaccine compositions, comprising one or more live attenuated flaviviruses, to bulk vaccine compositions stabilized with these stabilizers, particularly dry vaccine compositions prepared from these bulk vaccine compositions, and to methods for stabilizing one or more live attenuated flaviviruses.
    Type: Application
    Filed: March 26, 2012
    Publication date: January 31, 2013
    Applicant: Sanofi Pasteur
    Inventors: Alain Françon, Olivier Brass, Pierre Chouvenc, Amandine Leleu
  • Patent number: 8142795
    Abstract: The present invention relates to stabilizers for compositions, including immunogenic compositions, such as vaccine compositions, comprising one or more live attenuated flaviviruses, to bulk vaccine compositions stabilized with these stabilizers, particularly dry vaccine compositions prepared from these bulk vaccine compositions, and to methods for stabilizing one or more live attenuated flaviviruses.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: March 27, 2012
    Assignee: Sanofi Pasteur
    Inventors: Alain Françon, Olivier Brass, Pierre Chouvenc, Amandine Leleu
  • Patent number: 8016120
    Abstract: The invention relates to a method for obtaining viruses from a liquid viral suspension, according to which: the viral suspension is subjected to density gradient ultracentrifugation, the ultracentrifugation is carried out continuously, and the density gradient is a discontinuous gradient comprising at least 2 steps.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: September 13, 2011
    Assignee: Sanofi Pasteur SA
    Inventors: Olivier Brass, Jean-Marc Contzen, Alain Francon, Michel Tardy
  • Publication number: 20110081380
    Abstract: The invention relates to a vaccine composition comprising: a) inactivated whole virus, and b) a stabilizing excipient which comprises: i. a buffer solution, ii. a mixture of essential and nonessential amino acids, iii. a disaccharide, iv. a polyol, v. a chelating agent, vi. urea or a urea derivative, and vii. a nonionic surfactant.
    Type: Application
    Filed: October 6, 2010
    Publication date: April 7, 2011
    Applicant: SANOFI PASTEUR
    Inventors: Alain Françon, Michel Chevalier, Nadège Moreno, Eric Calvosa, Sandrine Cigarini, Virginie Fabre
  • Publication number: 20100015180
    Abstract: The present invention relates to stabilizers for compositions, including immunogenic compositions, such as vaccine compositions, comprising one or more live attenuated flaviviruses, to bulk vaccine compositions stabilized with these stabilizers, particularly dry vaccine compositions prepared from these bulk vaccine compositions, and to methods for stabilizing one or more live attenuated flaviviruses.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 21, 2010
    Applicant: Sanofi Pasteur
    Inventors: Alain Francon, Olivier Brass, Pierre Chouvenc, Amandine Leleu
  • Publication number: 20090232894
    Abstract: The present invention relates to a process for stabilizing an adjuvant containing vaccine composition, an adjuvanted vaccine composition in dry form and in particular a process for stabilizing an influenza vaccine composition, particularly an adjuvanted influenza vaccine composition in dry form.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 17, 2009
    Applicant: SANOFI PASTEUR
    Inventors: Pierre Chouvenc, Alain Francon
  • Publication number: 20090023197
    Abstract: The invention relates to a method for obtaining viruses from a liquid viral suspension, according to which: the viral suspension is subjected to density gradient ultracentrifugation, the ultracentrifugation is carried out continuously, and the density gradient is a discontinuous gradient comprising at least 2 steps.
    Type: Application
    Filed: June 25, 2008
    Publication date: January 22, 2009
    Applicant: SANOFI PASTEUR SA
    Inventors: Oliver Brass, Jean Marc Contzen, Alain Francon, Michel Tardy
  • Patent number: 7404960
    Abstract: A vaccine composition comprising two valences is provided: (i) a first valence which is adjuvant-enhanced with aluminum hydroxide and (ii) a second valence which contains a polysaccharide of bacterial capsule comprising one or more o-acetyl groups and which is not adsorbed with aluminum oxide due to the presence of a protecting compound which may be a phosphate, a citrate or a carbonate and which prevents the adsorption. The first valence can be any vaccine valence. In one particular embodiment, the vaccine composition contains (i) Hepatitis A valence, adsorbed on aluminum hydroxide and (ii) the typhoid fever valence formed by the polysaccharide Vi of the Salmonella typhi capsule.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: July 29, 2008
    Assignee: Aventis Pasteur SA
    Inventor: Alain Françon
  • Patent number: 6982088
    Abstract: The invention concerns the stabilization of a vaccine composition maintained in liquid state by the use of high molecular weight polyvinylpyrrolidone, hence eliminating the use of albumen. The invention is of particular interest for vaccine compositions comprising attenuated live viruses such as oral vaccine against poliomyelitis.
    Type: Grant
    Filed: October 8, 2001
    Date of Patent: January 3, 2006
    Assignee: Aventis Pasteur, S.A.
    Inventors: Alain Françon, Catherine Noël
  • Publication number: 20040170648
    Abstract: The invention concerns a vaccine composition comprising two valences; (i) a first valence which is adjuvant-enhanced with aluminium hydroxide and (ii) a second valence which contains a polysaccharide of bacterial capsule comprising one or more —O— acetyl groups and which is not adsorbed with aluminium oxide due to the presence of a protecting compound which may be a phosphate, a citrate or a carbonate and which prevents said adsorptiuon. The first valence can be any vaccine valence. In one particular embodiment, the vaccine composition contains (i) the Hepatite A valence, adsorbed on aluminium hydroxide and (ii) the typhoid fever valence formed by the polysaccharide Vi of the Salmonella typhi capsule.
    Type: Application
    Filed: February 3, 2004
    Publication date: September 2, 2004
    Inventor: Alain Francon