Patents by Inventor Didier Stien

Didier Stien 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).

  • Insecticide properties of an extract of , and the constituents thereof
    Patent number: 10834926
    Abstract: The invention relates to the use of an extract of Sextonia rubra or the constituents thereof, rubrenolide and/or rubrynolide, as an insecticide agent against mosquitoes, especially as a larvicide agent.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: November 17, 2020
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, INSTITUT PASTEUR, UNIVERSITÉ DE GUYANE, UNIVERSITÉ DES ANTILLES, GUYANE DÉVELOPPEMENT INNOVATION
    Inventors: Michaël Falkowski, Alice De Souza Rodrigues, Véronique Éparvier, Isabelle Dusfour, Emeline Houël, Didier Stien
  • INSECTICIDE PROPERTIES OF AN EXTRACT OF SEXTONIA RUBRA, AND THE CONSTITUENTS THEREOF
    Publication number: 20170238556
    Abstract: The invention relates to the use of an extract of Sextonia rubra or the constituents thereof, rubrenolide and/or rubry-nolide, as an insecticide agent against mosquitoes, especially as a larvicide agent.
    Type: Application
    Filed: September 22, 2015
    Publication date: August 24, 2017
    Inventors: Michaël FALKOWSKI, Alice DE SOUZA RODRIGUES, Véronique ÉPARVIER, Isabelle DUSFOUR, Emeline HOUËL, Didier STIEN
  • Cross-linked polyimine and use thereof for the immobilization of acidic or electrophilic compounds present in a solution
    Patent number: 7438818
    Abstract: The invention relates to a process for immobilizing acidic or electrophilic compounds in a solution. The process is characterized in that it consists in bringing a crosslinked polyimine, which is insoluble in the medium and in which the imino groups are —NH-groups, into contact with said compounds and in then separating, by filtration, the modified polyimine obtained. The crosslinked polyimine comprises linear segments composed of —HN—R1—NH—R2—Ar—R3-units in which R1, R2 and R3 are identical or different alkylene or alkenylene groups and Ar represents an aromatic group. The process is of use for fixing undesirable compounds or for purifying acidic compounds.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: October 21, 2008
    Assignees: Centre National de la Recherche Scientifique, Universite de Montpellier I, Universite de Montpellier II
    Inventor: Didier Stien
  • Cross-linked polymine and use thereof for the immobilization of acidic or electrophilic compounds present in a solution
    Publication number: 20070017872
    Abstract: The invention relates to a process for immobilizing acidic or electrophilic compounds in a solution. The process is characterized in that it consists in bringing a crosslinked polyimine, which is insoluble in the medium and in which the imino groups are —NH-groups, into contact with said compounds and in then separating, by filtration, the modified polyimine obtained. The crosslinked polyimine comprises linear segments composed of —HN—R1—NH—R2—Ar—R3-units in which R1, R2 and R3 are identical or different alkylene or alkenylene groups and Ar represents an aromatic group. The process is of use for fixing undesirable compounds or for purifying acidic compounds.
    Type: Application
    Filed: April 29, 2004
    Publication date: January 25, 2007
    Applicants: Centre National De La Recherche Scientifique (CNRS), Montpellier I, Montpellier II
    Inventor: Didier Stien