Patents by Inventor Jean-Marc Contzen

Jean-Marc Contzen 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 for purifying a viral suspension
    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
  • Method for purifying a viral suspension
    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