Patents by Inventor Grégory Pieters

Grégory Pieters 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).

  • CIRCULARLY POLARIZED OLED EMITTING LAYER COMPOSITION
    Publication number: 20230397490
    Abstract: An active light-emitting layer composition including a thermally activated delayed fluorescence (TADF) molecule with TADF properties as a host material and a luminescent molecule with circularly polarized (CP) properties as a dopant. Also, a light-emitting device, such as an organic light-emitting diodes (OLED), including the active light-emitting layer made of this composition.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 7, 2023
    Applicants: UNIVERSITE DE RENNES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE RENNES, ECOLE NATIONALE SUPERIEURE DE CHIMIE DE RENNES, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Ludovic FAVEREAU, Jeanne CRASSOUS, Sitthichok KASEMTHAVEECHOK, Kais DHBAIBI, Grégory PIETERS, Benoît RACINE, Etienne QUESNEL
  • ADDUCT COMPRISING AT LEAST A TRANSITION METAL AND AN ADDUCT OF A CARBON ALLOTROP AND A PYRROLIC COMPOUND
    Publication number: 20230322644
    Abstract: The present invention relates to an adduct comprising at least one transition metal and an adduct between a sp2 carbon allotrope and a pyrrole compound. In particular, the invention relates to an adduct comprising at least one transition metal and hydrophylic adducts between a sp2 carbon allotrope and a pyrrole compound. Such adduct is preferentially used as catalytic system in a chemical reaction such as C—H activation, in particular the Hydrogen Isotope Exchange with isotopes such as deuterium and tritium.
    Type: Application
    Filed: August 11, 2021
    Publication date: October 12, 2023
    Inventors: Maurizio Stefano Galimberti, Vincenzina Barbera, Grégory Pieters, Alberto Palazzolo
  • ORGANIC COMPOUNDS WITH DELAYED FLUORESCENCE EMISSION AND CIRCULARLY POLARISED LUMINESCENCE AND USE THEREOF
    Publication number: 20230255105
    Abstract: The present invention relates to compounds simultaneously having thermally activated delayed fluorescence (TADF), circularly polarised luminescence (CPL) and aggregation-induced emission enhancement (AIEE) properties. The invention also relates to the use of such compounds as a photocatalyst or as a dopant, in particular in the emitting layers of light-emitting diodes (OLEDs), as well as light-emitting devices or light-emitting diodes (OLEDs) comprising such compounds.
    Type: Application
    Filed: July 9, 2021
    Publication date: August 10, 2023
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITÉ PARIS-SACLAY, UNIVERSITÉ DE RENNES 1, ECOLE NATIONALE SUPÉRIEURE DE CHIMIE DE RENNES, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE RENNES
    Inventors: Grégory Pieters, Ludovic Favereau, Laurelie Poulard, Max Coehlo, Lucas Frederic, Sitthichok Kasemthaveechok, Jeanne Crassous