Patents by Inventor Sébastien Lefebvre

Sébastien 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).

  • Patent number: 11646977
    Abstract: The avionic system of an aircraft includes a set of avionic computers and a switch associated with each avionic computer. For each avionic computer of the set of avionic computers, the avionic system includes a communication link between the switch associated with this avionic computer and each of the switches associated with the other avionic computers. Each switch is configured such that it routes the data frames received on its input ports to its output ports in a manner predefined only on the basis of the input ports on which these data frames are received. The various switches are configured such that, when an avionic computer sends a data frame, this data frame is transmitted to all of the other avionic computers.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: May 9, 2023
    Assignee: AIRBUS OPERATIONS SAS
    Inventors: Dominique Portes, Sylvain Sauvant, Gilles Lartigue, Bertrand Deshayes, Sébastien Lefebvre
  • Publication number: 20220399087
    Abstract: The present disclosure provides a method for genetic analysis for disease diagnoses, as well as a system for implementing such analysis. Provided is a comprehensive, scalable, biotechnology solution that solves diagnostic and therapeutic complications in rapidly progressive childhood genetic diseases. As such, the invention provides Genome-to-Treatment (GTRx?), which is an automated, virtual system for genetic disease diagnosis and acute management guidance.
    Type: Application
    Filed: June 10, 2022
    Publication date: December 15, 2022
    Inventors: Stephen Kingsmore, Narayanan Veeraraghavan, Sebastien Lefebvre
  • Publication number: 20210152492
    Abstract: The avionic system of an aircraft includes a set of avionic computers and a switch associated with each avionic computer. For each avionic computer of the set of avionic computers, the avionic system includes a communication link between the switch associated with this avionic computer and each of the switches associated with the other avionic computers. Each switch is configured such that it routes the data frames received on its input ports to its output ports in a manner predefined only on the basis of the input ports on which these data frames are received. The various switches are configured such that, when an avionic computer sends a data frame, this data frame is transmitted to all of the other avionic computers.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 20, 2021
    Inventors: Dominique PORTES, Sylvain SAUVANT, Gilles LARTIGUE, Bertrand DESHAYES, Sébastien LEFEBVRE
  • Publication number: 20160206972
    Abstract: A chromatography column design and a packing device, as well as a method for obtaining a column with a very compact and uniform bed are provided. The bed remains compact and uniform during operation of the column and during sanitization, storage and transportation of the column. The amount of hardware, particularly the hardware parts in contact with product, is minimized, especially with the implementation of an internal liner. With this internal liner, the packed bed can be separated from the column in intact form, or even prepared separately from, and outside of, the column.
    Type: Application
    Filed: March 11, 2016
    Publication date: July 21, 2016
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Sébastien Lefebvre, Lilian Portier, Maurice Agée
  • Patent number: 9327213
    Abstract: A chromatography column design and a packing device, as well as a method for obtaining a column with a very compact and uniform bed are provided. The bed remains compact and uniform during operation of the column and during sanitization, storage and transportation of the column. The amount of hardware, particularly the hardware parts in contact with product, is minimized, especially with the implementation of an internal liner. With this internal liner, the packed bed can be separated from the column in intact form, or even prepared separately from, and outside of, the column.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: May 3, 2016
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Sébastien Lefebvre, Lilian Portier, Maurice Agée
  • Patent number: 8741135
    Abstract: A preparative chromatography column is equipped with one or more valves that can each be used to both inject a column packing into the column or withdraw used packing from the column, in addition to cleaning the supply and discharge lines associated with the valve itself, all by moving a movable plug within the valve body and all without protruding into the column interior. Each valve is mounted on the lateral wall of the column just above the filter plate at the column floor, and the plug is movable between a closed position in which the end surface of the plug is flush with the inner wall of the column and an open position in which the plug is recessed within the bore. Each valve has two additional ports in its valve body, positioned such that when the plug is closed, both ports are open to the valve bore, and when the plug is open, at least one of the ports is open to the bore. The position of the plug within the valve bore determines the valve function.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: June 3, 2014
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Maurice Agee, Sebastien Lefebvre, Sebastien Magnaud, Philippe Vernot
  • Patent number: 8610610
    Abstract: System and method for calibrating a time constant R0Ci of an integrated electronic current-feedback continuous-time delta sigma analog/digital converter (modulator) having a variable-impedance filter coupled to input of the modulator, an analog input signal Vin of fixed frequency applied to the variable-impedance filter, wherein the analog input signal Vin attenuation engendered by the variable-impedance filter is measured, and the value of a time constant R0Ci in the modulator and value of the impedance of the variable-impedance filter are modified until an attenuation corresponding to the desired attenuation for the integrated electronic circuit modulator is obtained.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: December 17, 2013
    Assignee: ST-Ericsson SA
    Inventors: Eric Andre, Sébastien Lefebvre, Jonathan Amiach
  • Patent number: 8562826
    Abstract: The plunger used as the upper enclosure in a preparative chromatography column is suspended by one or more rods that are supported by a frame through coupling connections on the frame that can fix the position of the rod(s) relative to the frame, while the position of the rod(s) is controlled by a motorized drive system that is suspended above the column. The drive system is mounted either to the column lid or to a functional plate positioned a short distance above the column lid. These constructions allow the plunger to be raised and lowered so that the column and its parts can be exchanged, all without the need for a hoist or crane.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: October 22, 2013
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Daniel M. Bailey, Philippe Vernot, Sebastien Lefebvre
  • Publication number: 20130228501
    Abstract: A chromatography column design and a packing device, as well as a method for obtaining a column with a very compact and uniform bed are provided. The bed remains compact and uniform during operation of the column and during sanitization, storage and transportation of the column. The amount of hardware, particularly the hardware parts in contact with product, is minimized, especially with the implementation of an internal liner. With this internal liner, the packed bed can be separated from the column in intact form, or even prepared separately from, and outside of, the column.
    Type: Application
    Filed: February 20, 2013
    Publication date: September 5, 2013
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Sébastien Lefebvre, Lilian Portier, Maurice Agée
  • Publication number: 20120026024
    Abstract: System and method for calibrating a time constant R0Ci of an integrated electronic current-feedback continuous-time delta sigma analog/digital converter (modulator) having a variable-impedance filter coupled to the input of the modulator, an analog input signal Vin of fixed frequency applied to the variable-impedance filter, wherein the analog input signal Vin attenuation engendered by the variable-impedance filter is measured, and the value of a time constant R0Ci in the modulator and the value of the impedance of the variable-impedance filter are modified until an attenuation corresponding to the desired attenuation for the integrated electronic circuit modulator is obtained.
    Type: Application
    Filed: January 28, 2010
    Publication date: February 2, 2012
    Applicant: ST-ERICSSON SA
    Inventors: Eric Andre, Sébastien Lefebvre, Jonathan Amiach
  • Publication number: 20100193441
    Abstract: A preparative chromatography column is equipped with one or more valves that can each be used to both inject a column packing into the column or withdraw used packing from the column, in addition to cleaning the supply and discharge lines associated with the valve itself, all by moving a movable plug within the valve body and all without protruding into the column interior. Each valve is mounted on the lateral wall of the column just above the filter plate at the column floor, and the plug is movable between a closed position in which the end surface of the plug is flush with the inner wall of the column and an open position in which the plug is recessed within the bore. Each valve has two additional ports in its valve body, positioned such that when the plug is closed, both ports are open to the valve bore, and when the plug is open, at least one of the ports is open to the bore. The position of the plug within the valve bore determines the valve function.
    Type: Application
    Filed: April 6, 2010
    Publication date: August 5, 2010
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Maurice Agee, Sebastien Lefebvre, Sebastien Magnaud, Philippe Vernot
  • Publication number: 20100140174
    Abstract: The plunger used as the upper enclosure in a preparative chromatography column is suspended by one or more rods that are supported by a frame through coupling connections on the frame that can fix the position of the rod(s) relative to the frame, while the position of the rod(s) is controlled by a motorized drive system that is suspended above the column. The drive system is mounted either to the column lid or to a functional plate positioned a short distance above the column lid. These constructions allow the plunger to be raised and lowered so that the column and its parts can be exchanged, all without the need for a hoist or crane.
    Type: Application
    Filed: February 22, 2010
    Publication date: June 10, 2010
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Daniel M. Bailey, Philippe Vernot, Sebastien Lefebvre
  • Publication number: 20100133165
    Abstract: The plunger used as the upper enclosure in a preparative chromatography column is suspended by one or more rods that are supported by a frame through coupling connections on the frame that can fix the position of the rod(s) relative to the frame, while the position of the rod(s) is controlled by a motorized drive system that is suspended above the column. The drive system is mounted either to the column lid or to a functional plate positioned a short distance above the column lid. These constructions allow the plunger to be raised and lowered so that the column and its parts can be exchanged, all without the need for a hoist or crane.
    Type: Application
    Filed: February 11, 2010
    Publication date: June 3, 2010
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Daniel M. Bailey, Philippe Vernot, Sebastien Lefebvre
  • Patent number: 7718058
    Abstract: A preparative chromatography column is equipped with one or more valves that can each be used to both inject a column packing into the column or withdraw used packing from the column, in addition to cleaning the supply and discharge lines associated with the valve itself, all by moving a movable plug within the valve body and all without protruding into the column interior. Each valve is mounted on the lateral wall of the column just above the filter plate at the column floor, and the plug is movable between a closed position in which the end surface of the plug is flush with the inner wall of the column and an open position in which the plug is recessed within the bore. Each valve has two additional ports in its valve body, positioned such that when the plug is closed, both ports are open to the valve bore, and when the plug is open, at least one of the ports is open to the bore. The position of the plug within the valve bore determines the valve function.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: May 18, 2010
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Maurice Agee, Sebastien Lefebvre, Sebastien Magnaud, Philippe Vernot
  • Patent number: 7697319
    Abstract: An embodiment of a device for memorization of a memory bit is provided, comprising a bistable circuit having complementary first and second read/write terminals, wherein the device comprises an initialization input connected to said bistable circuit, said input being designed to go into a first state controlling a pre-load phase of said bistable circuit and following said preload phase, to go into a second state controlling setting up of said memory bit and its complement at said read/write terminals.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: April 13, 2010
    Assignee: STMicroelectronics, SA
    Inventors: Laurent Dedieu, Sebastien Lefebvre
  • Patent number: 7686953
    Abstract: The plunger used as the upper enclosure in a preparative chromatography column is suspended by one or more rods that are supported by a frame through coupling connections on the frame that can fix the position of the rod(s) relative to the frame, while the position of the rod(s) is controlled by a motorized drive system that is suspended above the column. The drive system is mounted either to the column lid or to a functional plate positioned a short distance above the column lid. These constructions allow the plunger to be raised and lowered so that the column and its parts can be exchanged, all without the need for a hoist or crane.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: March 30, 2010
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Daniel M. Bailey, Philippe Vernot, Sebastien Lefebvre
  • Publication number: 20090134441
    Abstract: A non-volatile memory element includes a transistor for selecting the element and a capacitor for recording a binary value by electrical breakdown of an insulating layer of the capacitor. A structure of the memory element is modified in order to allow a higher degree of integration of the element within an electronic circuit of the MOS type. In addition, the memory element is made more robust with respect to a high electrical voltage (VDD) used for recording the binary value. The transistor includes a drain in the substrate with electric field drift in a longitudinal direction extending towards the capacitor. The electric field drift region for the drain includes a first extension underneath the gate of the transistor opposite the source and a second extension underneath the insulating layer of the capacitor. Doping of the substrate for the electric field drift region is limited to a region substantially corresponding to a distance between the gate and an electrode of the capacitor.
    Type: Application
    Filed: February 4, 2009
    Publication date: May 28, 2009
    Applicants: STMicroelectronics S.A., STMicroelectronics (Crolles 2) SAS
    Inventors: Philippe Candellier, Thierry Devoivre, Emmanuel Josse, Sebastien Lefebvre
  • Patent number: 7504683
    Abstract: A non-volatile memory element includes a transistor for selecting the element and a capacitor for recording a binary value by electrical breakdown of an insulating layer (13) of the capacitor. A structure of the memory element is modified in order to allow a higher degree of integration of the element within an electronic circuit of the MOS type. In addition, the memory element is made more robust with respect to a high electrical voltage (VDD) used for recording the binary value. The transistor includes a drain in the substrate with electric field drift in a longitudinal direction extending towards the capacitor. The electric field drift region for the drain includes a first extension underneath the gate of the transistor opposite the source and a second extension underneath the insulating layer of the capacitor. Doping of the substrate for the electric field drift region is limited to a region substantially corresponding to a distance between the gate and an electrode of the capacitor.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: March 17, 2009
    Assignees: STMicroelectronics S.A., STMicroelectronics (Crolles 2) SAS
    Inventors: Philippe Candelier, Thierry Devoivre, Emmanuel Josse, Sébastien Lefebvre
  • Publication number: 20080290016
    Abstract: The plunger used as the upper enclosure in a preparative chromatography column is suspended by one or more rods that are supported by a frame through coupling connections on the frame that can fix the position of the rod(s) relative to the frame, while the position of the rod(s) is controlled by a motorized drive system that is suspended above the column. The drive system is mounted either to the column lid or to a functional plate positioned a short distance above the column lid. These constructions allow the plunger to be raised and lowered so that the column and its parts can be exchanged, all without the need for a hoist or crane.
    Type: Application
    Filed: December 13, 2007
    Publication date: November 27, 2008
    Applicant: BIO-RAD LABORATORIES, INC.
    Inventors: Daniel M. Bailey, Philippe Vernot, Sebastien Lefebvre
  • Publication number: 20080264837
    Abstract: A preparative chromatography column is equipped with one or more valves that can each be used to both inject a column packing into the column or withdraw used packing from the column, in addition to cleaning the supply and discharge lines associated with the valve itself, all by moving a movable plug within the valve body and all without protruding into the column interior. Each valve is mounted on the lateral wall of the column just above the filter plate at the column floor, and the plug is movable between a closed position in which the end surface of the plug is flush with the inner wall of the column and an open position in which the plug is recessed within the bore. Each valve has two additional ports in its valve body, positioned such that when the plug is closed, both ports are open to the valve bore, and when the plug is open, at least one of the ports is open to the bore. The position of the plug within the valve bore determines the valve function.
    Type: Application
    Filed: April 23, 2008
    Publication date: October 30, 2008
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Maurice Agee, Sebastien Lefebvre, Sebastien Magnaud, Philippe Vernot