Patents by Inventor Thi Xuan Chu

Thi Xuan Chu 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).

  • Method and system for producing calibrated microcapsules
    Patent number: 9737864
    Abstract: The present invention relates to a method for producing microcapsules having a calibrated diameter and at least one parameter characteristic of the mechanical properties of an equally calibrated microcapsule, characterized in that the method includes the steps of: producing microcapsules by means of injection into a microsystem (10) of three fluids (f1, f2, f3); deforming the microcapsules by means generating a flow within a capillary tube (20); observing and acquiring the outline of at least one deformed microcapsule observed by an optical acquisition means (30); comparing the acquired outline with outlines from a collection of reference microcapsule outlines; determining the diameter and said at least one parameter characteristic of the mechanical properties of the observed microcapsule; and modifying the flow rates (Q1, Q2, and/or Q3) of the fluids (f1, f2, f3). The present invention also relates to a system for producing calibrated microcapsules.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: August 22, 2017
    Assignees: UNIVERSITE TECHNOLOGIE DE COMPIEGNE-UTC, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Eric Leclerc, Anne-Virginie Salsac, Dominique Barthes-Biesel, Thi Xuan Chu
  • METHOD AND SYSTEM FOR PRODUCING CALIBRATED MICROCAPSULES
    Publication number: 20140191430
    Abstract: The present invention relates to a method for producing microcapsules having a calibrated diameter and at least one parameter characteristic of the mechanical properties of an equally calibrated microcapsule, characterized in that the method includes the steps of: producing microcapsules by means of injection into a microsystem (10) of three fluids (f1, f2, f3); deforming the microcapsules by means generating a flow within a capillary tube (20); observing and acquiring the outline of at least one deformed microcapsule observed by an optical acquisition means (30); comparing the acquired outline with outlines from a collection of reference microcapsule outlines; determining the diameter and said at least one parameter characteristic of the mechanical properties of the observed microcapsule; and modifying the flow rates (Q1, Q2, and/or Q3) of the fluids (f1, f2, f3). The present invention also relates to a system for producing calibrated microcapsules.
    Type: Application
    Filed: April 23, 2012
    Publication date: July 10, 2014
    Inventors: Eric Leclerc, Anne-Virginie Salsac, Dominique Barthes-Biesel, Thi Xuan Chu