Patents by Inventor Bernard Geffroy

Bernard Geffroy 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).

  • Photo-crosslinkable emissive molecular materials
    Patent number: 11225601
    Abstract: For applications in the fields of organic electronics and photonics, disclosed are fluorescent charge-transfer compounds emitting in the visible spectral range from blue to red, including a triarylamine moiety, an electron-withdrawing group and at least two photopolymerizable groups. Also disclosed is a method for manufacturing a film-forming and photo-crosslinkable composition including at least one compound of the invention and its use as a precursor of a photocrosslinked emissive layer.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: January 18, 2022
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (CEA), UNIVERSITE DE NANTES
    Inventors: Elena Ishow, Simon Olivier, Tony Maindron, Bernard Geffroy
  • PHOTO-CROSSLINKABLE EMISSIVE MOLECULAR MATERIALS
    Publication number: 20180030342
    Abstract: For applications in the fields of organic electronics and photonics, disclosed are fluorescent charge-transfer compounds emitting in the visible spectral range from blue to red, including a triarylamine moiety, an electron-withdrawing group and at least two photopolymerizable groups. Also disclosed is a method for manufacturing a film-forming and photo-crosslinkable composition including at least one compound of the invention and its use as a precursor of a photocrosslinked emissive layer.
    Type: Application
    Filed: February 23, 2016
    Publication date: February 1, 2018
    Inventors: Elena ISHOW, Simon OLIVIER, Tony MAINDRON, Bernard GEFFROY
  • Metallopolymers and use thereof
    Patent number: 9790325
    Abstract: Metallopolymers of formula (I) where R1 and R1?; and R2 and R2? are independently of each other, a C2-C10 alkyl group; X is CR3R3? or NR4; R3 and R3? are, independently of each other, as is R4, a C2-C10 alkyl group; L is a C4-C10 alkylene group; Ln1 and Ln2 are, independently of each other, chosen from the lanthanide cations; L1 and L2 are, independently of each other, chosen from the ?-diketonate ligands; T is a neutral bidentate Lewis base including two coordinating nitrogen atoms; ? represents a coordination of group T via the two nitrogen atoms of T to Ln1 and Ln2 respectively; Ln1 and Ln2 are, independently of each other, chosen from the lanthanide cations; L1 and L2 are, independently of each other, chosen from the ?-diketonate, picolinate or dipicolinate monoanionic ligands; 0.01<x<0.50; 0<y<0.49, with x+y=0.50.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: October 17, 2017
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, ECOLE POLYTECHNIQUE
    Inventors: Alessandra Sergent, Gael Zucchi, Denis Tondelier, Bernard Geffroy
  • NOVEL METALLOPOLYMERS AND USE THEREOF
    Publication number: 20150376337
    Abstract: Metallopolymers of formula (I) where R1 and R1?; and R2 and R2? are independently of each other, a C2-C10 alkyl group; X is CR3R3? or NR4; R3 and R3? are, independently of each other, as is R4, a C2-C10alkyl group; L is a C4-C10 alkylene group; Ln1 and Ln2 are, independently of each other, chosen from the lanthanide cations; L1 and L2 are, independently of each other, chosen from the ?-diketonate ligands; T is a neutral bidentate Lewis base including two coordinating nitrogen atoms; ? represents a coordination of group T via the two nitrogen atoms of T to Ln1 and Ln2 respectively; Ln1 and Ln2 are, independently of each other, chosen from the lanthanide cations; L1 and L2 are, independently of each other, chosen from the ?-diketonate, picolinate or dipicolinate monoanionic ligands; 0.01<x<0.50; 0<y<0.49, with x+y=0.50.
    Type: Application
    Filed: February 7, 2014
    Publication date: December 31, 2015
    Inventors: Alessandra SERGENT, Gael ZUCCHI, Denis TONDELIER, Bernard GEFFROY
  • WHITE ELECTROLUMINESCENT ORGANIC DIODES BASED ON MOLECULES DERIVED FROM PHOSPHOLE
    Publication number: 20090236978
    Abstract: The invention concerns a white electroluminescent organic diode, providing, under the effect of electrical polarization, a white light composed of a mixture of at least one first colour and a second colour emitted respectively by a first phosphorous material and by a second phosphorous material.
    Type: Application
    Filed: July 24, 2007
    Publication date: September 24, 2009
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE, UNIVERSITE DE RENNES 1
    Inventors: Noella Lemaitre, Bernard Geffroy, Omrane Fadhel, Muriel Hissler, Regis Reau