Patents by Inventor Nicolas Charvet

Nicolas Charvet 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).

  • Luminescent carbon particles, method for preparation and use
    Patent number: 9394449
    Abstract: These luminescent carbon particles have a carbon core and an external polymeric coating containing at least one luminophore.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: July 19, 2016
    Assignee: Commissariat A L'Energie Atomique Et Aux Energies Alternatives
    Inventors: Aurélien Auger, Philippe Capron, Nicolas Charvet
  • Method For Marking A Metal Substrate By Means Of The Incorporation Of Inorganic Luminescent Particles
    Publication number: 20150104590
    Abstract: passivation layer by oxidation of the surface of the metal substrate; incorporating inorganic luminescent particles within the metal substrate passivation layer, the average particle size being in the range from 4 to 1,000 nm; and clogging the passivation layer.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 16, 2015
    Inventors: Nicolas Charvet, Stéphanie Desrousseaux, Bruno Laguitton, Sakina Yahiaoui
  • LUMINESCENT CARBON PARTICLES, METHOD FOR PREPARATION AND USE
    Publication number: 20140212580
    Abstract: These luminescent carbon particles have a carbon core and an external polymeric coating containing at least one luminophore.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 31, 2014
    Applicant: Commissariat A L'Energie Atomique Et Aux Energies Alternatives
    Inventors: Aurélien AUGER, Philippe CAPRON, Nicolas CHARVET
  • Inorganic nanocrystals with organic coating layer, their method of manufacture and materials constituted by said nanocrystals
    Patent number: 7309525
    Abstract: Nanocrystal comprising an inorganic core consisting of least one metal and/or at least one semi-conductor compound comprising at least one metal, the external surface of said nanocrystal being provided with an organic coating layer, consisting of at least one ligand compound of formula (I): X—Y-Z??(I) in which X represents a 1,1-dithiolate or 1,1-diselenoate group that is linked by the two atoms of sulphur or selenium to an atom of metal of the external surface of said nanocrystal; Y represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; Z is a group chosen from among groups capable of communicating specific properties to the nanocrystal. Their methods of manufacture.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: December 18, 2007
    Assignee: Commissariat l'Energie Atomique
    Inventors: Peter Reiss, Claudia Querner, Nicolas Charvet
  • Inorganic nanocrystals with organic coating layer, their method of manufacture and materials constituted by said nanocrystals
    Publication number: 20050266246
    Abstract: Nanocrystal comprising an inorganic core consisting of least one metal and/or at least one semi-conductor compound comprising at least one metal, the external surface of said nanocrystal being provided with an organic coating layer, consisting of at least one ligand compound of formula (I): X—Y-Z??(I) in which X represents a 1,1-dithiolate or 1,1-diselenoate group that is linked by the two atoms of sulphur or selenium to an atom of metal of the external surface of said nanocrystal; Y represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; Z is a group chosen from among groups capable of communicating specific properties to the nanocrystal. Their methods of manufacture.
    Type: Application
    Filed: December 1, 2004
    Publication date: December 1, 2005
    Inventors: Peter Reiss, Claudia Querner, Nicolas Charvet