Patents by Inventor Constantin Vahlas

Constantin Vahlas 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).

  • Process for the preparation of nanoparticles
    Patent number: 11377366
    Abstract: The present invention relates to a “safety-by-design” method for the preparation of nanoparticles, to a method for the preparation of a nanocomposite material, and to the use of a direct liquid injection device so as to prepare nanoparticles or nanocomposite materials in a “safety-by-design” process.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: July 5, 2022
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE
    Inventors: Myrtil Kahn, Yohan Champouret, Richard Clergereaux, Constantin Vahlas, Anne-Francoise Mingotaud, Guillaume Carnide
  • Process For The Preparation Of Nanoparticles
    Publication number: 20210276882
    Abstract: The present invention relates to a “safety-by-design” method for the preparation of nanoparticles, to a method for the preparation of a nanocomposite material, and to the use of a direct liquid injection device so as to prepare nanoparticles or nanocomposite materials in a “safety-by-design” process.
    Type: Application
    Filed: July 26, 2017
    Publication date: September 9, 2021
    Inventors: Myrtil KAHN, Yohan CHAMPOURET, Richard CLERGEREAUX, Constantin VAHLAS, Anne-Francoise MINGOTAUD, Guillaume CARNIDE
  • Device For Providing Vapors Of A Solid Precursor To A Processing Device
    Publication number: 20080268143
    Abstract: The present invention relates to a device for providing vapors of at least one solid precursor intended to supply a physico-chemical processing device, comprising an enclosure capable of containing particles of the solid precursor and comprising an inlet and an outlet, the outlet being intended to be connected to the physico-chemical processing device; and means for circulating a gas between the inlet and the outlet to put the particles of the solid precursor in the form of a fluidized bed, and to convey to the outlet vapors of the solid precursor.
    Type: Application
    Filed: November 30, 2005
    Publication date: October 30, 2008
    Inventors: Constantin Vahlas, Brigitte Caussat, Francois Senocq, Wayne L. Gladfelter
  • Method for the selective production of ordered carbon nanotubes in a fluidised bed
    Publication number: 20040234445
    Abstract: A method for the selective production of ordered carbon nanotubes includes decomposition of a carbon source in the gaseous state in contact with at least one solid catalyst, taking the form of metallic particles borne by carrier grains. The catalyst grains are adapted so as to be able to form a fluidised bed containing between 1% and 5% by weight of metallic particles having average dimensions of between 1 nm and 10 nm. The decomposition takes place in a fluidised bed of catalyst grains. The method can be used to obtain pure nanotubes with predetermined dimensions in a high yield.
    Type: Application
    Filed: June 4, 2004
    Publication date: November 25, 2004
    Inventors: Philippe Gilles Serp, Roselyne Feurer, Constantin Vahlas, Philippe Joseph Kalck