Patents by Inventor Catherine Jourdat

Catherine Jourdat 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 modulating nitrilase selectivity, nitrilases obtained by said method and use thereof
    Patent number: 7361507
    Abstract: The invention concerns a modified nitrilase with modulated selectivity, characterized in that it comprises in position 162 an amino acid residue different from the original amino acid residue.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: April 22, 2008
    Assignee: Aventis Animal Nutrition S.A.
    Inventors: Jérôme Pierrard, Olivier Favre-Bulle, Catherine Jourdat
  • Process for the preparation of trans-carveol
    Publication number: 20050260725
    Abstract: A process for the production of trans-carveol which process comprises (a) incubading in the presence of D-limonene, a culture medium comprising microbial cells expressing an oxygenase capable of toluene and/or napththalene and (b) recovering the trans-carveol from the culture medium.
    Type: Application
    Filed: November 8, 2001
    Publication date: November 24, 2005
    Inventors: Wouter Duetz, Bernard Witholt, Catherine Jourdat
  • Process for the preparation of perillyl alcohol
    Publication number: 20040077063
    Abstract: The invention provides a process for the preparation of a hydroxymethylated terpene analog, for example (+) or (−) perillyl alcohol, which process comprises contacting a terpene analog having a terminal methyl group, for example D- or L-limonene, with a microbial cell, which microbial cell is capable of expressing a monooxygenase capable of terminal hydroxylation of an n-alkane.
    Type: Application
    Filed: December 8, 2003
    Publication date: April 22, 2004
    Inventors: Wouter Adriaan Duetz, Bernard Witholt, Catherine Jourdat
  • Method for preparing capsules consisting of a liquid active material core enclosed in a mineral coating
    Patent number: 6537583
    Abstract: The invention concerns a method for preparing mineral capsules consisting of aqueous liquid core enclosed in mineral coating, said method consisting in: 1) emulsifying an aqueous fluid in a phase non-miscible with said aqueous fluid so as to disperse it therein in the form of droplets; 2) contacting, in the resulting emulsion, at least a zirconium, silicon, aluminium and/or a transition metal capable of being hydrolysed or subjected to condensation polymerisation in temperature and pH conditions suitable for forming a precipitate consisting of the corresponding oxide or hydroxide; 3) recuperating the resulting mineral capsules and, if required, purifying them.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: March 25, 2003
    Assignee: Rhodia Chimie
    Inventors: Dominique Dupuis, Catherine Jourdat
  • Enzymes and microorganisms having amidase activity for hydrolysing polyamides
    Patent number: 6214592
    Abstract: The present invention relates to an enzyme with amidase activity, particularly towards substrates of the oligomer type derived from PA 6.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: April 10, 2001
    Assignee: Rhone-Poulenc Fibres et Polymeres S.A.
    Inventors: Joël Crouzet, Olivier Favre-Bulle, Catherine Jourdat, Anne-Marie Le Coq, Dominique Petre
  • Enzymes and micro organisms with amidase activity which hydrolyze polyamides
    Patent number: 6180388
    Abstract: The present invention relates to a process for the enzymatic hydrolysis of polyamides 6.6 to give adipic acid monomers and hexamethylenediamine monomers. The present invention further relates to an enzyme with amidase activity particularly towards substrates of the oligomer type derived from PA 6.6 and/or PA 6, said enzyme being characterized in that it consists of a peptide sequence corresponding to SEQ ID NO: 1 in the attached sequence listing and/or at least one polypeptide homologous to this sequence. The invention further relates to the DNA coding for said enzyme and to the biological precursors thereof The invention further relates to the microorganisms capable of producing this enzyme and to the hydrolysis process in which this enzyme and/or these microorganisms are applied.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: January 30, 2001
    Assignee: Rhone-Poulenc Fibres et Polymeres S.A.
    Inventors: Jo{umlaut over (e)}l Crouzet, Didier Faucher, Olivier Favre-Bulle, Catherine Jourdat, Dominique Petre, J{acute over (e)}r{circumflex over (o)}me Pierrard, Denis Thibaut, Carole Guitton