Patents by Inventor MATHIEU VELVE CASQUILLAS

MATHIEU VELVE CASQUILLAS 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).

  • System for measuring flow of a liquid in a microfluidic circuit by determining gas and liquid pressures
    Patent number: 10677622
    Abstract: A system to measure the flow rate of a liquid in a microfluidic circuit. The system includes a vessel that is partially filled with the liquid, a gaseous ceiling above the vessel and a pressure regulator to maintain the pressure of the gas in the gaseous ceiling at a predetermined value P1. A capillary pipe to extract the liquid from the vessel and to output the liquid at a pressure P2 lower than P1. A first inlet of the pressure sensor is connected to the gaseous ceiling, a second inlet of the pressure sensor is connected to the capillary pipe, and the outlet of the pressure sensor outputs a signal as a function of the pressure difference (P1?P2), which is a measurement representing the flow rate of pressurized P2 liquid supplied to the microfluidic circuit.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: June 9, 2020
    Assignee: ELVESYS
    Inventors: Maël Le Berre, Mathieu Velve Casquillas
  • SYSTEM FOR MEASURING THE FLOW RATE OF A LIQUID AND USE OF SAME
    Publication number: 20190025100
    Abstract: A system to measure the flow rate of a liquid in a microfluidic circuit. The system includes a vessel that is partially filled with the liquid, a gaseous ceiling above the vessel and a pressure regulator to maintain the pressure of the gas in the gaseous ceiling at a predetermined value P1. A capillary pipe to extract the liquid from the vessel and to output the liquid at a pressure P2 lower than P1. A first inlet of the pressure sensor is connected to the gaseous ceiling, a second inlet of the pressure sensor is connected to the capillary pipe, and the outlet of the pressure sensor outputs a signal as a function of the pressure difference (P1?P2), which is a measurement representing the flow rate of pressurized P2 liquid supplied to the microfluidic circuit.
    Type: Application
    Filed: January 19, 2017
    Publication date: January 24, 2019
    Inventors: MAËL LE BERRE, MATHIEU VELVE CASQUILLAS