Patents by Inventor Jean-Claude Debouzy

Jean-Claude Debouzy 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).

  • Per-(3-6-anhydro)cyclodextrins derivatives, preparation and use thereof for separating ions
    Patent number: 6559135
    Abstract: The invention concerns derivatives of per-(3,6-anhydro)-cyclodextrin, their preparation, and their use in separating polluting ions, for example in human decontamination. These derivatives correspond to one of the following formula: in which at least one of the R1 groups represents the group —OCH2COOH and the other R1 groups, which may be identical or different, represent a group that corresponds to one of the following formula: OH, OR2, SH, SR2, OCOR2, NH2, NHR2, NR2R3, CONH2, CONHR2, CONR2R3, CN, COOR2, COOH and R2, in which R2 and R3, which may be identical or different, represent an aliphatic or aromatic hydrocarbon group, either saturated or unsaturated, which may include one or several hetero-atoms comprising O, S and N, and n is equal to 6, 7 or 8.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: May 6, 2003
    Assignees: Commissariat a l'Energie Atomique, Centre National de la Recherche Scientifique
    Inventors: Andrée Gadelle, Florence Fauvelle, Jean-Claude Debouzy
  • Method for fixing or separating ions, in particular of lead, using per(3,6-anhydro)cy-clodextrin derivatives
    Patent number: 6544964
    Abstract: The invention relates to the fixation or separation of ions, particularly of Pb, by per(3,6-anhydro)cylcodextrin derivatives. This can be carried out by contacting the medium containing the ions to be fixed or separated, with a per(3,6-anhydro)cylcodextrin derivative of formula: in which at least one of the R1 represents OCH3, whilst the other R1 can represent OCH3, OH or other groups, for complexing the ions. Preferably, for the fixation of lead, the derivative complies with formula (I) with n=6 and all the R1=OCH3.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: April 8, 2003
    Assignee: Commissariat A L'Energie Atomique
    Inventors: Cécile Baudin, Bruno Perly, Andrée Gadelle, Jean-Claude Debouzy, Florence Fauvelle
  • Per-(3,6-anhydro)cyclodextrins derivatives, preparation and use thereof for separating ions
    Publication number: 20020137923
    Abstract: The invention concerns derivatives of per-(3,6-anhydro)-cyclodextrin, their preparation and their use in separating polluting ions, for example in human decontamination.
    Type: Application
    Filed: November 28, 2001
    Publication date: September 26, 2002
    Inventors: Andree Gadelle, Florence Fauvelle, Jean-Claude Debouzy