Patents by Inventor Chantal Larpent

Chantal Larpent 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).

  • Heat-sensitive compounds exhibitng a cloud point which can be used as extractants for the separation of metals in aqueous solution
    Patent number: 7015340
    Abstract: The invention relates to a heat-sensitive compound having the property of being soluble in water below a critical temperature Tc and insoluble in water above this temperature Tc, this property being thermally reversible, characterized in that it comprises a first amphiphilic and thermally reversible part corresponding to one of the following formulae (I) and (II): in which i is an integer ranging from 1 to 20 and j is an integer ranging from 3 to 30. This compound can be used to extract a chemical entity, such as uranium.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: March 21, 2006
    Assignee: Commissariat a L'Energie Atomique
    Inventors: Charles Madic, Laurence Berthon, Nicole Zorz, Hélène Coulombeau, Fabienne Testard, Thomas Zemb, Sébastien Gibanel, Chantal Larpent, Krystyna Baczko
  • Heat-sensitive compounds having a cloud point which can be used as extractants for the separation of metals in aqueous solution
    Publication number: 20040242769
    Abstract: The invention relates to a heat-sensitive compound having the property of being soluble in water below a critical temperature Tc and insoluble in water above this temperature Tc, this property being thermally reversible, characterized in that it comprises a first amphiphilic and thermally reversible part corresponding to one of the following formulae (I) and (II): 1
    Type: Application
    Filed: March 2, 2004
    Publication date: December 2, 2004
    Inventors: Charles Madic, Laurence Berthon, Nicole Zorz, Helene Coulombeau, Fabienne Testard, Thomas Zemb, Sebastien Gibanel, Chantal Larpent, Krystyna Baczko
  • Glycosylated particle of latex or of inorganic oxide and process for the preparation thereof
    Patent number: 5814407
    Abstract: The invention relates to a glycosylated particle of latex or of inorganic oxide, exhibiting functional radicals at the surface. At least a proportion of said functional radicals is joined to a glycosyl residue.The particles preferably consist either of polymers obtained by polymerization of ethylenically unsaturated monomers or of silica.The invention finds an application as a detection agent in biology.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: September 29, 1998
    Assignee: Societe Prolabo
    Inventors: Joel Richard, Sophie Vaslin, Chantal Larpent