Patents by Inventor Helene Collet

Helene Collet 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 preparing dicaffeoylquinic acids and use thereof in combating aphids
    Patent number: 8921420
    Abstract: Method for preparing 3,5-dicaffeoylquinic acid and certain derivatives thereof, and use thereof in the preparation of plant-protection products. Method for combating aphids using 3,5-dicaffeoylquinic acid and certain derivatives thereof.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: December 30, 2014
    Assignee: Institut National de la Recherche Agronomique
    Inventors: Jean-Luc Poessel, Marie-Hélène Collet, Yves Noel Elie Rahbe
  • Method for Preparing Dicaffeoylquinic Acids and Use Thereof in Combating Aphids
    Publication number: 20110054022
    Abstract: Method for preparing 3,5-dicaffeoylquinic acid and certain derivatives thereof, and use thereof in the preparation of plant-protection products. Method for combating aphids using 3,5-dicaffeoylquinic acid and certain derivatives thereof.
    Type: Application
    Filed: January 30, 2009
    Publication date: March 3, 2011
    Inventors: Jean-Luc Poessel, Marie-Hélène Collet, Yves Noel Elie Rahbe
  • Method of Preparing Grafted Polylysine Dendrimers
    Publication number: 20080206183
    Abstract: The use of monomers of active a-amino acids for the preparation of hydrophobic polypeptides in the form of precipitates, whereby the polypeptides result from the polymerization of the aforementioned monomers of active a-amino acids in an aqueous solvent and can be resolubilized in the solvent.
    Type: Application
    Filed: April 27, 2006
    Publication date: August 28, 2008
    Applicant: Central national De La Recherche Scientifique
    Inventors: Auguste Commeyras, Helene Collet, Eddy Souaid, Herve Cottet, Bernard Romestand, Odile Yvonne Marie Trambouze
  • Method for peptide synthesis starting from N- (N'-nitrosocarbamoyl) amino acids
    Patent number: 5777076
    Abstract: A method for peptide synthesis using an N-?N'-nitroso-(R')carbamoyl!amino acid as the starting compound. The compound is separated into N.sub.2, R'OH and N-carboxyanhydride of formula (II). ##STR1## The compound (II) together with an amino acid or peptide with at least one free .alpha.-amino function is introduced into a reactive medium to obtain a dipeptide or a higher peptide than the added peptide.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: July 7, 1998
    Assignee: Universite Montpellier II Sciences et Techniques du Languedoc
    Inventors: Auguste Commeyras, Helene Collet, Louis Mion, Sylvie Benefice, Patrick Calas, Henri Choukroun, Jacques Taillades, Catherine Bied