Patents by Inventor Izabela Janowska

Izabela Janowska 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).

  • COLLOIDAL NANOMATERIAL/POLYMOLECULAR SYSTEM NANOCOMPOSITES, AND PREPARATION METHODS
    Publication number: 20190382561
    Abstract: The present invention relates in particular to a laminar nanomaterial/natural polymolecular system nanocomposite in which the nanomaterial is an exfoliated and/or dispersed laminar material, and the polymolecular system has a hydrophilic-lipophilic balance (HLB)?8. The present invention also relates to a laminar nanomaterial/natural polymolecular system nanocomposite colloid in a polar solvent, in which the concentration of exfoliated/dispersed nanomaterial in the polar solvent is ?1 g/L, and in which the nanomaterial is an exfoliated and/or dispersed laminar material, and the natural polymolecular system has a hydrophilic-lipophilic balance ?8. The present invention also relates to a process for preparing a nanocomposite colloid according to the invention, and also to a process for exfoliating and/or dispersing a laminar material.
    Type: Application
    Filed: November 9, 2017
    Publication date: December 19, 2019
    Inventors: Izabela JANOWSKA, Lai TRUONG-PHUOC, Housseinou BA, Cuong PHAM-HUU
  • Preparation of graphene by mechanically thinning graphite materials
    Patent number: 9309122
    Abstract: The preparation of graphene, mono-, bi- and multi-layers from graphite-based precursor materials, for example, pencil lead or graphite, by a method of mechanical thinning on the surface of a planar substrate with controlled roughness, followed by sonication in order to collect the graphene deposited on the substrate in a liquid medium. The bearing force during thinning by mechanical friction enables the number of graphene sheets deposited on the surface of the substrate to be controlled.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: April 12, 2016
    Assignees: Centre National de la Recherche Scientifique, Universite de Strasbourg
    Inventors: Izabela Janowska, Dominique Begin, Kambiz Chizari, Ovidiu Ersen, Pierre Bernhardt, Thierry Romero, Marc Ledoux, Cuong Pham-Huu
  • Photocatalysts based on structured three-dimensional carbide, in particular ?-SiC, foams
    Patent number: 8628726
    Abstract: The invention relates to a photocatalyst comprising a ?-SiC cellular foam and a photocatalytically active phase, deposited directly on said cellular foam or on an intermediate phase deposited on said cellular foam. The average size of the cells is between 2500 ?m and 5000 ?m. The foam can comprise nanotubes or nanofibers (particularly of carbon, SiC, and TiO2) that consist of, or carry as an intermediate phase, a photocatalytically active phase.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: January 14, 2014
    Assignees: Centre National de la Recherche Scientifique, Universite de Strasbourg
    Inventors: Cuong Pham-Huu, Nicolas Keller, Marc-Jacques Ledoux, Valérie Keller-Spitzer, Dominique Begin, Mathieu Grandcolas, Izabela Janowska, Shabnam Hajesmaili
  • PREPARATION OF GRAPHENE BY MECHANICALLY THINNING GRAPHITE MATERIALS
    Publication number: 20120241690
    Abstract: The preparation of graphene, mono-, bi- and multi-layers from graphite-based precursor materials, for example, pencil lead or graphite, by a method of mechanical thinning on the surface of a planar substrate with controlled roughness, followed by sonication in order to collect the graphene deposited on the substrate in a liquid medium. The bearing force during thinning by mechanical friction enables the number of graphene sheets deposited on the surface of the substrate to be controlled.
    Type: Application
    Filed: November 3, 2010
    Publication date: September 27, 2012
    Applicants: Universite de Strasbourg, Centre National De La Recherche Scientifique
    Inventors: Izabela Janowska, Dominique Begin, Kambiz Chizari, Ovidiu Ersen, Pierre Bernhardt, Thierry Romero, Marc Ledoux, Cuong Pham-Huu
  • PHOTOCATALYSTS BASED ON STRUCTURED THREE-DIMENSIONAL CARBIDE, IN PARTICULAR B-SIC, FOAMS
    Publication number: 20110262312
    Abstract: The invention relates to a photocatalyst comprising a ?-SiC cellular foam and a photocatalytically active phase, deposited directly on said cellular foam or on an intermediate phase deposited on said cellular foam. The average size of the cells is between 2500 ?m and 5000 ?m. The foam can comprise nanotubes or nanofibers (particularly of carbon, SiC, and TiO2) that consist of, or carry as an intermediate phase, a photocatalytically active phase.
    Type: Application
    Filed: September 14, 2009
    Publication date: October 27, 2011
    Inventors: Cuong Pham-Huu, Nicolas Keller, Marc-Jacques Ledoux, Valérie Keller-Spitzer, Dominique Begin, Mathieu Grandcolas, Izabela Janowska, Shabnam Hajesmaili