Patents by Inventor Jean-Marc Lefebvre

Jean-Marc Lefebvre 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).

  • Publication number: 20150045890
    Abstract: An intervertebral disc prosthesis comprises a structure having a rigid upper plate, a rigid lower plate, and a core inserted between said plates, the structure being made from thermoplastic material, the core further comprising a thermoplastic monomaterial having graduated elastic and damping properties. According to one alternative, the core is composed of an elastomeric central nucleus surrounded by one or more rings which are referred to as rings having ranks j relative to the core, and which are more rigid.
    Type: Application
    Filed: April 25, 2012
    Publication date: February 12, 2015
    Applicants: UNIVERSITE LILLE 1 SCIENCES ET TECHNOLOGIES, CENTRE NATIONALE DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jean-Marc Lefebvre, Roland Seguela, Caroline Frederix, Richard Assaker
  • Patent number: 7662639
    Abstract: The invention relates to a composition for the detection of traces of human or animal blood. The aforementioned composition comprises a luminol compound, an oxidizing agent and a base which are diluted in a preferably aqueous solvent. Said composition is characterized in that: the luminol compound is present in a quantity providing a concentration of between 1 and 20 mmoles/l in the end composition, the oxidizing agent is hydrogen peroxide which is present at a concentration of between 25 and 100 mmoles/l in the end composition, the base is soda, NaOH, which is present at a concentration of between 25 mmoles/l and 500 mmoles/l in the end composition. The invention also relates a kit and a method for preparing said composition. Furthermore, the invention relates to a method of detecting and locating traces of human or animal blood.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: February 16, 2010
    Assignee: Roc Import
    Inventors: Jean-Marc Lefebvre-Despeaux, Loïc Blum
  • Publication number: 20050176082
    Abstract: The invention relates to a composition for the detection of traces of human or animal blood. The aforementioned composition comprises a luminol compound, an oxidising agent and a base which are diluted in a preferably aqueous solvent. Said composition is characterized in that: the luminol compound is present in a quantity providing a concentration of between 1 and 20 mmoles/l in the end composition, the oxidizing agent is hydrogen peroxide which is present at a concentration of between 25 and 100 mmoles/l in the end composition, the base is soda, NaOH, which is present at a concentration of between 25 mmoles/l and 500 mmoles/l in the end composition. The invention also relates a kit and a method for preparing said composition. Furthermore, the invention relates to a method of detecting and locating traces of human or animal blood.
    Type: Application
    Filed: April 24, 2003
    Publication date: August 11, 2005
    Inventors: Jean-Marc Lefebvre-Despeaux, Loic Blum