Patents by Inventor Xavier LE GUÉVEL

Xavier LE GUÉVEL 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).

  • USE OF FLUOROPHORE COMPOUNDS OF THE AZA- BODIPY TYPE AS CONTRAST AGENTS IN THE SHORT WAVE INFRARED REGION
    Publication number: 20220322945
    Abstract: The present invention relates to the use of an aza-BODIPY fluorophore compound as a contrast agent in the optical window ranging from 1000 to 1700 nm. The invention also relates to the use, as a contrast agent, of a composition comprising said fluorophore compound and a pharmaceutically acceptable excipient and/or a solvent, in a kit comprising an injection system and said fluorophore or said composition, and also to a method for identifying a biological target (such as a healthy or tumour cell, a protein, DNA, RNA, for example).
    Type: Application
    Filed: August 4, 2020
    Publication date: October 13, 2022
    Inventors: Lucie SANCEY, Christine GOZE, Ewen BODIO, Benoît BUSSER, Jacques PLIQUETT, Amélie GODARD, Ghadir KALOT, Véronique JOSSERAND, Xavier LE GUÉVEL, Jean-Luc COLL, Franck DENAT
  • Preparation of stable metal oxide sols, notably for making thin abrasion-resistant films with optical properties
    Patent number: 9156995
    Abstract: The invention relates to a method for preparing sols of metal oxides, with an aqueous component, which are stable over time and which notably allow the making of thin films having both remarkable optical and abrasion resistance properties. This method comprises: (i) replacing with water all or part of the alcohol or of the alcohols present in an alcoholic sol of a metal oxide, with a neutral or basic pH, and optionally (ii) adjusting the pH of the thereby obtained aqueous or partly aqueous sol to a value of at least 8. The invention also relates to a method for making films from these sols and, in particular, thin films with optical properties and resistant to abrasion. Applications: making optical components for power lasers, making optical fibers, cathodic tubes, etc.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: October 13, 2015
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Philippe Belleville, Philippe Prene, Xavier Le Guevel
  • PREPARATION OF STABLE METAL OXIDE SOLS, NOTABLY FOR MAKING THIN ABRASION-RESISTANT FILMS WITH OPTICAL PROPERTIES
    Publication number: 20140037839
    Abstract: The invention relates to a method for preparing sols of metal oxides, with an aqueous component, which are stable over time and which notably allow the making of thin films having both remarkable optical and abrasion resistance properties. This method comprises: (i) replacing with water all or part of the alcohol or of the alcohols present in an alcoholic sol of a metal oxide, with a neutral or basic pH, and optionally (ii) adjusting the pH of the thereby obtained aqueous or partly aqueous sol to a value of at least 8. The invention also relates to a method for making films from these sols and, in particular, thin films with optical properties and resistant to abrasion. Applications: making optical components for power lasers, making optical fibers, cathodic tubes, etc.
    Type: Application
    Filed: November 24, 2011
    Publication date: February 6, 2014
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Philippe Belleville, Philippe Prene, Xavier Le Guevel