Patents by Inventor Sophie Cassaignon

Sophie Cassaignon 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).

  • Tungsten oxide-type compound having a new crystalline structure and method for preparing same
    Patent number: 10450200
    Abstract: The compound according to the invention is a compound of formula (1) Ax W1-yMOyO3, wherein A is chosen from the group comprising the Li, Na, NH4, K and H cations, and it is characterized in that x and y verify the relationships 0?x?1 and 0?y?0.5, and in that it has a crystalline structure of the hexagonal type with a base of WO6 octahedra, said structure having tunnels delimited by 6, 4 and 3 of said octahedra and oriented along the axis c.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: October 22, 2019
    Assignees: RHODIA OPERATIONS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SORBONNE UNIVERSITE
    Inventors: Valerie Buissette, Thierry Le Mercier, Julie Besnardiere, Sophie Cassaignon, David Portehault, Gilles Wallez
  • TUNGSTEN OXIDE-TYPE COMPOUND HAVING A NEW CRYSTALLINE STRUCTURE AND METHOD FOR PREPARING SAME
    Publication number: 20160264430
    Abstract: The compound according to the invention is a compound of formula (1) Ax W1-yMOyO3, wherein A is chosen from the group comprising the Li, Na, NH4, K and H cations, and it is characterised in that x and y verify the relationships 0?x?1 and 0?y?0.5, and in that it has a crystalline structure of the hexagonal type with a base of WO6 octahedra, said structure having tunnels delimited by 6, 4 and 3 of said octahedra and oriented along the axis c.
    Type: Application
    Filed: October 21, 2014
    Publication date: September 15, 2016
    Inventors: Valérie BUISSETTE, Thierry LE MERCIER, Julie BESNARDIERE, Sophie CASSAIGNON, David PORTEHAULT, Gilles WALLEZ
  • Titanium oxide with a rutile structure
    Patent number: 7731934
    Abstract: The invention relates to a novel form of titanium oxide. The titanium oxide is characterized in that it has the crystallographic structure of rutile with an orthorhombic lattice and a Pnmm space group, it has a platelet morphology, the platelets being of rectangular shape with a length between 3 and 10 nm, a width between 3 and 10 nm and a thickness of less than 1 nm and it has a specific surface area, determined by nitrogen adsorption/desorption, of 100 to 200 m2/g. Applications: self-cleaning glazing, photovoltaic cells.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: June 8, 2010
    Assignees: Universite Pierre et Marie Curie, Centre National de la Recherche Scientifique
    Inventors: Sophie Cassaignon, Jean-Pierre Jolivet, Magali Koelsch
  • Titanium Oxide With A Rutile Structure
    Publication number: 20070277872
    Abstract: The invention relates to a novel form of titanium oxide. The titanium oxide is characterized in that it has the crystallographic structure of rutile with an orthorhombic lattice and a Pnmm space group, it has a platelet morphology, the platelets being of rectangular shape with a length between 3 and 10 nm, a width between 3 and 10 nm and a thickness of less than 1 nm and it has a specific surface area, determined by nitrogen adsorption/desorption, of 100 to 200 m2/g.
    Type: Application
    Filed: July 12, 2005
    Publication date: December 6, 2007
    Applicants: UNIVERSITE PIERRE ET MARIE CURIE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Sophie Cassaignon, Jean-Pierre Jolivet, Magali Koelsch