Patents by Inventor Isabelle Willems

Isabelle Willems 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).

  • Lithium batteries containing lithium-bearing iron phosphate and carbon
    Patent number: 9287558
    Abstract: The invention relates to lithium-bearing iron phosphate in the form of micrometric mixed aggregates of nanometric particles, to an electrode and cell resulting therefrom and to the method for manufacturing same, which is characterized by a nanomilling step.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: March 15, 2016
    Assignee: PRAYON
    Inventors: Sébastien Patoux, Sébastien Martinet, Sébastien Launois, Alain Gourgue, Alain Germeau, Isabelle Willems
  • LITHIUM BATTERIES CONTAINING LITHIUM-BEARING IRON PHOSPHATE AND CARBON
    Publication number: 20160072122
    Abstract: The invention relates to lithium-bearing iron phosphate in the form of micrometric mixed aggregates of nanometric particles, to an electrode and cell resulting therefrom and to the method for manufacturing same, which is characterized by a nanomilling step.
    Type: Application
    Filed: November 18, 2015
    Publication date: March 10, 2016
    Inventors: Sébastien Patoux, Sébastien Martinet, Sébastien Launois, Alain Gourgue, Alain Germeau, Isabelle Willems
  • Lithium Batteries Containing Lithium-Bearing Iron Phosphate and Carbon
    Publication number: 20140186705
    Abstract: The invention relates to lithium-bearing iron phosphate in the form of micrometric mixed aggregates of nanometric particles, to an electrode and cell resulting therefrom and to the method for manufacturing same, which is characterized by a nanomilling step.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Inventors: Sébastien Patoux, Sébastien Martinet, Sébastien Launois, Alain Gourgue, Alain Germeau, Isabelle Willems
  • Lithium batteries containing lithium-bearing iron phosphate and carbon
    Patent number: 8703332
    Abstract: The invention relates to lithium-bearing iron phosphate in the form of micrometric mixed aggregates of nanometric particles, to an electrode and cell resulting therefrom and to the method for manufacturing same, which is characterized by a nanomilling step.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: April 22, 2014
    Assignees: Prayon, Commissariat à l'Énergie Atomique
    Inventors: Sébastien Patoux, Sébastien Martinet, Sébastien Launois, Alain Gourgue, Alain Germeau, Isabelle Willems
  • Catalyst supports and carbon nanotubes produced thereon
    Patent number: 7838459
    Abstract: The present invention is related to single and/or multiple-wall carbon nanotubes which may contain interstitial metals obtainable by a preparation process, comprising a catalytic step using a catalytic system, said catalytic system comprising a catalyst and a support, said support comprising hydroxides and/or carbonates or mixtures thereof with or without metal oxides. The present invention is also related to carbon fibers obtainable by said preparation process. The present invention also pertains in particular to said catalytic system and to said preparation process. Another aspect concerns the use of the nanotubes and of the catalytic system according to the invention.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: November 23, 2010
    Assignee: Facultes Universitaires Notre-Dame De La Paix
    Inventors: Janos B. Nagy, Narasimaiah Nagaraju, Isabelle Willems, Antonio Fonseca
  • CATALYST SUPPORTS AND CARBON NANOTUBES PRODUCED THEREON
    Publication number: 20090325788
    Abstract: The present invention is related to single and/or multiple-wall carbon nanotubes which may contain interstitial metals obtainable by a preparation process, comprising a catalytic step using a catalytic system, said catalytic system comprising a catalyst and a support, said support comprising hydroxides and/or carbonates or mixtures thereof with or without metal oxides. The present invention is also related to carbon fibers obtainable by said preparation process. The present invention also pertains in particular to said catalytic system and to said preparation process. Another aspect concerns the use of the nanotubes and of the catalytic system according to the invention.
    Type: Application
    Filed: July 20, 2009
    Publication date: December 31, 2009
    Applicant: FACULTES UNIVERSITAIRES NOTRE-DAME DE LA PAIX
    Inventors: Janos B. Nagy, Narasimaiah Nagaraju, Isabelle Willems, Antonio Fonseca
  • Catalyst supports and carbon nanotubes produced thereon
    Patent number: 7572427
    Abstract: The present invention is related to single and/or multiple-wall carbon nanotubes which may contain interstitial metals obtainable by a preparation process. The process includes a catalytic step using a catalytic system which includes a catalyst and a support. The support comprises hydroxides and/or carbonates or mixtures thereof with or without metal oxides. The present invention is also related to carbon fibers obtainable by said preparation process. The present invention also pertains in particular to said catalytic system and to said preparation process. Another aspect concerns the use of the nanotubes and of the catalytic system according to the invention.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: August 11, 2009
    Assignee: Facultes Universitaires Notre-Dame De La Paix
    Inventors: Janos B. Nagy, Narasimaiah Nagaraju, Isabelle Willems, Antonio Fonseca
  • Method for the production of functionalised short carbon nanotubes and functionalised short carbon nanotubes obtainable by said method
    Patent number: 7419650
    Abstract: The present invention is related to a method for producing functionalised short carbon nanotubes with at least one open tip by mechanical treatment of long carbon nanotubes, wherein said long nanotubes are submitted to mechanical milling forces in the presence of a reactant able to chemically react with the nanotubes so that short carbon nanotubes comprising at least one specific chemical group are obtained.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: September 2, 2008
    Assignee: Facultes Universitaries Notre-Dame De La Paix
    Inventors: Nathalie Pierard, Antonio Fonseca, Zoltan Konya, Narasimaiah Nagaraju, Isabelle Willems, Silvio Tollis, Geoffroy Bister, Janos B. Nagy, Dorina Popa
  • Catalyst supports and carbon nanotubes produced thereon
    Publication number: 20040241080
    Abstract: The present invention is related to single and/or multiple-wall carbon nanotubes which may contain interstitial metals obtainable by a preparation process. The process includes a catalytic step using a catalytic system which includes a catalyst and a support. The support comprises hydroxides and/or carbonates or mixtures thereof with or without metal oxides. The present invention is also related to carbon fibers obtainable by said preparation process. The present invention also pertains in particular to said catalytic system and to said preparation process. Another aspect concerns the use of the nanotubes and of the catalytic system according to the invention.
    Type: Application
    Filed: June 25, 2004
    Publication date: December 2, 2004
    Inventors: Janos B. Nagy, Narasimaiah Nagaraju, Isabelle Willems, Antonio Fonseca
  • Method for the production of functionalised short carbon nanotubes and functionalised short carbon nanotubes obtainable by said method
    Publication number: 20040028599
    Abstract: The present invention is related to a method for producing functionalised short carbon nanotubes with at least one open tip by mechanical treatment of long carbon nanotubes, wherein said long nanotubes are submitted to mechanical milling forces in the presence of a reactant able to chemically react with the nanotubes so that short carbon nanotubes comprising at least one specific chemical group are obtained.
    Type: Application
    Filed: March 6, 2003
    Publication date: February 12, 2004
    Inventors: Nathalie Pierard, Antonio Fonseca, Zoltan Konya, Narasimaiah Nagaraju, Isabelle Willems, Silvio Tollis, Geoffroy Bister, B. Nagy Janos, Dorina Popa