Patents by Inventor Paul A. Lefebvre
Paul A. 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).
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Publication number: 20230254475Abstract: The present invention provides systems and methods for color tuning optical modules and executing color calibration methods on artificial reality systems and devices. Embodiments can include a lens with a colored coating, a plurality of cameras, including a visible spectrum camera and an infrared camera, each positioned behind the lens, and a processor and memory. The colored coating includes a plurality of regions for selectively transmitting light. The processor and memory can be configured to receive light information indicative of environmental information for executing an operation on the device, identify wavelengths of light reflected by the color profile in front of each camera, determine a color calibration to amplify wavelengths of reflected light, update the environmental information based on the color calibration, and execute the operation on the device.Type: ApplicationFiled: February 4, 2022Publication date: August 10, 2023Inventors: Kian Kerman, Quintin Morris, Paul LeFebvre, Seyed-Ali Madani, Dong Rim Lee, Tristan Tom
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Patent number: 11606956Abstract: The present application relates to compositions comprising 4-chloroindole-3-acetic acid (4Cl-IAA) or an analogue thereof, or a combination of the latter, in the form of a potassium salt, a sodium salt or an amine salt. For example, such compositions can be used used in methods for selectively causing damage or mortality to weed.Type: GrantFiled: April 9, 2019Date of Patent: March 21, 2023Assignee: PREMIER TECH TECHNOLOGIES LTÉEInventors: Pierre Talbot, Alain Bélanger, George Kanellos, Shaun Purcell, Paul Lefebvre, Geneviève Roy, Dominique Lequere
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Patent number: 11577337Abstract: Methods and apparatus to control the acoustic properties of optical cables used as in-well oil and gas probes for acoustic monitoring, such as distributed acoustic sensing (DAS). One example aspect provides a solid path for the acoustic wave to propagate from an outside armor layer of the cable to the sensing optical waveguide embedded therein. Another example aspect offers ways to spatially dispose the optical sensing elements to create response delays indicative of the propagation speed and/or direction of an acoustic wave. Yet another example aspect provides ways to utilize additional spectral interrogation to increase ultimate spatial resolution. Yet another example aspect provides ways to locally vary the acoustic properties along the length of the cable.Type: GrantFiled: September 22, 2020Date of Patent: February 14, 2023Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLCInventors: Andre R. Vincelette, Christopher S. Baldwin, Paul Lefebvre, Hongbo Li, Domino Taverner, James R. Dunphy
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Publication number: 20210008657Abstract: Methods and apparatus to control the acoustic properties of optical cables used as in-well oil and gas probes for acoustic monitoring, such as distributed acoustic sensing (DAS). One example aspect provides a solid path for the acoustic wave to propagate from an outside armor layer of the cable to the sensing optical waveguide embedded therein. Another example aspect offers ways to spatially dispose the optical sensing elements to create response delays indicative of the propagation speed and/or direction of an acoustic wave. Yet another example aspect provides ways to utilize additional spectral interrogation to increase ultimate spatial resolution. Yet another example aspect provides ways to locally vary the acoustic properties along the length of the cable.Type: ApplicationFiled: September 22, 2020Publication date: January 14, 2021Inventors: Andre R. VINCELETTE, Christopher S. BALDWIN, Paul LEFEBVRE, Hongbo LI, Domino TAVERNER, James R. DUNPHY
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Patent number: 10843290Abstract: Methods and apparatus to control the acoustic properties of optical cables used as in-well oil and gas probes for acoustic monitoring, such as distributed acoustic sensing (DAS). One example aspect provides a solid path for the acoustic wave to propagate from an outside armor layer of the cable to the sensing optical waveguide embedded therein. Another example aspect offers ways to spatially dispose the optical sensing elements to create response delays indicative of the propagation speed and/or direction of an acoustic wave. Yet another example aspect provides ways to utilize additional spectral interrogation to increase ultimate spatial resolution. Yet another example aspect provides ways to locally vary the acoustic properties along the length of the cable.Type: GrantFiled: January 13, 2016Date of Patent: November 24, 2020Assignee: Weatherford Technology Holdings, LLCInventors: Andre R. Vincelette, Christopher S. Baldwin, Paul Lefebvre, Hongbo Li, Domino Taverner, James R. Dunphy
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Patent number: 10837274Abstract: A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.Type: GrantFiled: April 1, 2019Date of Patent: November 17, 2020Assignee: WEATHERFORD CANADA LTD.Inventors: Andre R. Vincelette, Jason Scott Kiddy, John Niemczuk, Christopher S. Baldwin, Paul Lefebvre
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Patent number: 10400579Abstract: A signal processing apparatus which has an input for receiving a signal conveying a response from first and second optical components to an optical excitation. The first and second optical components are in an optical sensor which is intended to be placed in a sensing zone. The sensing zone contains hydrogen susceptible to migrate into the optical sensor. The signal processing apparatus has a processing entity for processing the response from the first and second optical components to derive information on hydrogen concentration in the optical sensor.Type: GrantFiled: August 31, 2007Date of Patent: September 3, 2019Assignee: WEATHERFORD CANADA LTD.Inventors: André Vincelette, Paul Lefebvre, Jean-François Nadeu
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Publication number: 20190226321Abstract: A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.Type: ApplicationFiled: April 1, 2019Publication date: July 25, 2019Inventors: Andre R. VINCELETTE, Jason Scott KIDDY, John NIEMCZUK, Christopher S. BALDWIN, Paul LEFEBVRE
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Patent number: 10285402Abstract: The present application relates to compositions comprising 4-chloroindole-3-acetic acid (4Cl-IAA) or an analogue thereof, or a combination of the latter, in acid, salt or ester form. For example, such compositions can be used to curb weeds.Type: GrantFiled: September 15, 2015Date of Patent: May 14, 2019Assignee: PREMIER TECH TECHNOLOGIES LTÉEInventors: Pierre Talbot, Alain Bélanger, George Kanellos, Shaun Purcell, Paul Lefebvre, Geneviève Roy, Dominique Lequere
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Publication number: 20190116724Abstract: A particulate material spreader for radially projecting granular material. The particulate material spreader comprises a hopper, a set of open wheels and a spreading assembly at least partially extending between the hopper and the set of open wheels. The spreading assembly is configured to radially project the particulate material through at least one wheel of the set of open wheels. The spreading assembly comprises a wheel axle extending between the open wheels and rotating along with the open wheels when the particulate material spreader is moved over a surface; a distribution shaft operatively connected to the wheel axle to rotate along therewith; and a distribution plate. The distribution plate is mounted to the distribution shaft, receives the particulate material from the hopper and radially projects the particulate material substantially through at least one wheel of the set of open wheels.Type: ApplicationFiled: April 12, 2017Publication date: April 25, 2019Applicant: PREMIER TECH TECHNOLOGIES LTÉEInventors: Paul LEFEBVRE, Robert CAYER, Rita BIELLO, Jérôme Frédéric BOUCHARD, Michel E. GUAY, Karine LANELIER-SAVARD, Benoit ORBAN, Francois GAUCHER, Manuel LÉVEILLÉ, Mario GAGNON, Pierre TALBOT
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Patent number: 10246989Abstract: A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.Type: GrantFiled: August 11, 2017Date of Patent: April 2, 2019Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLCInventors: Andre R. Vincelette, Jason S. Kiddy, John B. Niemczuk, Christopher S. Baldwin, Paul Lefebvre
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Publication number: 20180087371Abstract: A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.Type: ApplicationFiled: August 11, 2017Publication date: March 29, 2018Inventors: Andre R. VINCELETTE, Jason S. KIDDY, John B. NIEMCZUK, Christopher S. BALDWIN, Paul LEFEBVRE
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Publication number: 20170258086Abstract: The present application relates to compositions comprising 4-chloroindole-3-acetic acid (4CI-AA) or an analogue thereof, or a combination of the latter, in acid, salt or ester form. For example, such compositions can be used to curb weeds.Type: ApplicationFiled: September 15, 2015Publication date: September 14, 2017Inventors: Pierre TALBOT, Alain BÉLANGER, George KANELLOS, Shaun PURCELL, Paul LEFEBVRE, Geneviève ROY, Dominique LEQUERE
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Publication number: 20160245071Abstract: A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.Type: ApplicationFiled: May 5, 2016Publication date: August 25, 2016Inventors: Andre R. VINCELETTE, Jason S. KIDDY, John B. NIEMCZUK, Christopher S. BALDWIN, Paul LEFEBVRE
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Publication number: 20160209584Abstract: Methods and apparatus to control the acoustic properties of optical cables used as in-well oil and gas probes for acoustic monitoring, such as distributed acoustic sensing (DAS). One example aspect provides a solid path for the acoustic wave to propagate from an outside armor layer of the cable to the sensing optical waveguide embedded therein. Another example aspect offers ways to spatially dispose the optical sensing elements to create response delays indicative of the propagation speed and/or direction of an acoustic wave. Yet another example aspect provides ways to utilize additional spectral interrogation to increase ultimate spatial resolution. Yet another example aspect provides ways to locally vary the acoustic properties along the length of the cable.Type: ApplicationFiled: January 13, 2016Publication date: July 21, 2016Inventors: Andre R. VINCELETTE, Christopher S. BALDWIN, Paul LEFEBVRE, Hongbo LI, Domino TAVERNER, James R. DUNPHY
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Patent number: 9347312Abstract: A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.Type: GrantFiled: April 22, 2010Date of Patent: May 24, 2016Assignee: WEATHERFORD CANADA PARTNERSHIPInventors: Andre R. Vincelette, Jason S. Kiddy, John B. Niemczuk, Christopher S. Baldwin, Paul Lefebvre
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Patent number: 9341778Abstract: An optical fiber cable for installation in a subterranean formation, where the temperature could be in excess of 150 degrees C. The optical fiber cable has an outer metallic jacket defining an elongated conduit with an internal elongated channel that receives an optical fiber. The optical fiber has two strands joined by a splice. A splice protector has a body with a passageway receiving the splice. The body has an outer region configured to be joined by a fusion weld to the outer metallic jacket.Type: GrantFiled: November 8, 2013Date of Patent: May 17, 2016Assignee: WEATHERFORD CANADA PARTNERSHIPInventors: Corneliu V. Ducra, Remi Charbonneau, Paul Lefebvre, Andre Vincelette
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Publication number: 20150131950Abstract: An optical fiber cable for installation in a subterranean formation, where the temperature could be in excess of 150 degrees C. The optical fiber cable has an outer metallic jacket defining an elongated conduit with an internal elongated channel that receives an optical fiber. The optical fiber has two strands joined by a splice. A splice protector has a body with a passageway receiving the splice. The body has an outer region configured to be joined by a fusion weld to the outer metallic jacket.Type: ApplicationFiled: November 8, 2013Publication date: May 14, 2015Inventors: Corneliu V. DUCRA, Remi CHARBONNEAU, Paul LEFEBVRE, Andre VINCELETTE
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PROCESS FOR OBTAINING OILS, LIPIDS AND LIPID-DERIVED MATERIALS FROM LOW CELLULOSIC BIOMASS MATERIALS
Publication number: 20130206571Abstract: The present invention concerns low energy requiring methods for processing low cellulosic biomass materials into oil, char and liquid components. One method comprises the steps of subjecting the biomass to hydrothermal carbonization under specified reaction conditions for producing a combined char and oil fraction as well as an aqueous fraction, separating the combined oil and char fraction from the aqueous fraction by filtration; separating the combined oil and char fraction into individual oil and char fractions using an organic solvent for forming an oil depleted char fraction and a liquid oil and solvent solution, and separating the liquid oil and solvent solution into individual oil and solvent fractions by distillation.Type: ApplicationFiled: May 12, 2011Publication date: August 15, 2013Inventors: Steven M. Heilmann, Kenneth J. Valentas, Marc Von Keitz, Frederick J. Schendel, Paul A. Lefebvre, Michael J. Sadowsky, Laurie A. Harned, Lindsey R. Jader -
Patent number: D856765Type: GrantFiled: April 12, 2017Date of Patent: August 20, 2019Assignee: PREMIER TECH TECHNOLOGIES LTÉEInventors: Paul Lefebvre, Robert Cayer, Rita Biello, Jérôme Frédéric Bouchard, Michel E. Guay, Karine Langelier-Savard, Benoît Orban, François Gaucher, Manuel Léveillé, Mario Gagnon, Pierre Talbot