Patents by Inventor Stephanie Chevalliot
Stephanie Chevalliot 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: 20220087646Abstract: At least one embodiment of an ultrasonic periodontal probe, the ultrasonic periodontal probe comprising a grip portion having a longitudinal axis, a support member comprising a part having a longitudinal axis different from the longitudinal axis of the grip portion, and an ultrasonic device fastened to the grip portion via the support member, wherein the ultrasonic device is configured for emitting ultrasound signals within at least two emitting cones and for receiving corresponding echoed ultrasound signals, the at least two emitting cones extending in opposite directions with regard to a plane comprising the longitudinal axis of the grip portion.Type: ApplicationFiled: January 16, 2020Publication date: March 24, 2022Inventors: Arnaud CAPRI, David ROUDERGUES, Jean-Marc INGLESE, Herve JOSSO, Edward SHELLARD, Stephanie CHEVALLIOT, Jean-Marc GREGOIRE, Frederic OSSANT, Aline BANQUART
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Publication number: 20210072431Abstract: A liquid lens that includes a first window, a second window, and a cavity disposed between the first window and the second window; a first and second liquid disposed within the cavity, the first and second liquid substantially immiscible with each other and having different refractive indices such that an interface between the first and second liquid defines a variable lens, at least a portion of the first liquid disposed within a first portion of the cavity, the second liquid disposed within a second portion of the cavity; a common electrode in electrical communication with the first liquid; and a driving electrode disposed on a sidewall of the cavity and insulated from the first liquid and the second liquid by an insulating element, wherein the insulating element comprises an insulating outer layer in contact with the liquids, the insulating outer layer comprising a lanthanide series oxide.Type: ApplicationFiled: December 13, 2018Publication date: March 11, 2021Applicants: CORNING INCORPORATED, UNIVERSITE CLAUDE BERNARD LYON 1, Centre National De La Recherche Scientifique-CNRSInventors: Bruno Berge, Gwenael Bonfante, Benjamin Burger, Stéphanie Chevalliot, Mathieu Maillard, Bérangère Toury-Pierre
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Patent number: 9939630Abstract: An electrowetting optical device having a non-aqueous conductive liquid and a non-conductive liquid, the liquids being non-miscible, and a dielectric enclosure on which both liquids are in contact and form a triple interface. The non-aqueous conductive liquid includes a non-ionic polar organic solvent, and at least 2 weight % of a first compound, where the first compound is non-aqueous and is either ionic or non-ionic. If the first compound is non-ionic, the first compound is more polar than the solvent, the polarity of the non-ionic first compound being measured by Hansen parameters, a sum of the Hansen parameter for polarity (?p) and of the Hansen parameter for hydrogen bonding (?h) being higher than the sum of the corresponding Hansen parameters of the non-ionic polar organic solvent, and the non-aqueous conductive liquid having an ionic second compound.Type: GrantFiled: May 20, 2015Date of Patent: April 10, 2018Assignee: PARROT DRONESInventors: Benjamin Burger, Stéphanie Chevalliot, Géraldine Malet
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Patent number: 9864186Abstract: An electrowetting optical device including a conductive liquid and a non-conductive liquid, the liquids being non miscible, and a dielectric enclosure on which both fluids are in contact and form a triple interface. The non-conductive liquid includes from 0.0001 weight percent to 1 about weight percent of a surface adsorbing agent. The surface adsorbing agent is an amphiphilic molecule having a solubility in water lower than 0.1 about weight percent at 25° C.Type: GrantFiled: July 16, 2015Date of Patent: January 9, 2018Assignee: PARROT DRONESInventors: Géraldine Malet, Stéphanie Chevalliot, Rebecca Rabot, Benjamin Burger
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Publication number: 20160018633Abstract: An electrowetting optical device including a conductive liquid and a non-conductive liquid, the liquids being non miscible, and a dielectric enclosure on which both fluids are in contact and form a triple interface. The non-conductive liquid includes from 0.0001 weight percent to 1 about weight percent of a surface adsorbing agent. The surface adsorbing agent is an amphiphilic molecule having a solubility in water lower than 0.1 about weight percent at 25° C.Type: ApplicationFiled: July 16, 2015Publication date: January 21, 2016Applicant: PARROT SAInventors: Géraldine Malet, Stéphanie Chevalliot, Rebecca Rabot, Benjamin Burger
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Publication number: 20150338637Abstract: An electrowetting optical device having a non-aqueous conductive liquid and a non-conductive liquid, the liquids being non-miscible, and a dielectric enclosure on which both liquids are in contact and form a triple interface. The non-aqueous conductive liquid includes a non-ionic polar organic solvent, and at least 2 weight % of a first compound, where the first compound is non-aqueous and is either ionic or non-ionic. If the first compound is non-ionic, the first compound is more polar than the solvent, the polarity of the non-ionic first compound being measured by Hansen parameters, a sum of the Hansen parameter for polarity (?p) and of the Hansen parameter for hydrogen bonding (?h) being higher than the sum of the corresponding Hansen parameters of the non-ionic polar organic solvent, and the non-aqueous conductive liquid having an ionic second compound.Type: ApplicationFiled: May 20, 2015Publication date: November 26, 2015Applicant: PARROT SAInventors: Benjamin Burger, Stéphanie Chevalliot, Géraldine Malet
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Patent number: 8854714Abstract: Colored conductive fluids for electrowetting or electrofluidic devices, and the devices themselves, are disclosed. The colored conductive fluid includes a polar solvent and a colorant selected from a pigment and/or a dye. The polar solvent has (a) a dynamic viscosity of 0.1 cP to 1000 cP at 25° C., (b) a surface tension of 25 dynes/cm to 90 dynes/cm at 25° C., and (c) an electrowetting relative response of 20% to 80%. The colored conductive fluid itself can have an electrical conductivity from 0.1 ?S/cm to 3,000 ?S/cm and can have no greater than 500 total ppm of monatomic ions with ionic radii smaller than 2.0 ? and polyatomic ions with ionic radii smaller than 1.45 ?. The colored conductive fluid should not cause electrical breakdown of a dielectric in the device in which it is employed. An agent for controlling electrical conductivity can optionally be added to the colored conductive fluid.Type: GrantFiled: August 4, 2010Date of Patent: October 7, 2014Assignee: Sun Chemical CorporationInventors: Lisa Clapp, Jason Heikenfeld, April Milarcik, Russell J. Schwartz, Stanislav G. Vilner, Manjeet Dhindsa, Stephanie Chevalliot
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Patent number: 8691717Abstract: The invention discloses core/shell, type catalyst particles comprising a Mcore/Mshell structure with Mcore=inner particle core and Mshell=outer particle shell, wherein the medium diameter of the catalyst particle (dcore+shell) is in the range of 20 to 100 nm, preferably in the range of 20 to 50 nm. The thickness of the outer shell (tshell) is about 5 to 20% of the diameter of the inner particle core of said catalyst particle, preferably comprising at least 3 atomic layers. The core/shell type catalyst particles, particularly the particles comprising a Pt˜based shell reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.Type: GrantFiled: July 24, 2012Date of Patent: April 8, 2014Assignee: Umicore AG & Co. KGInventors: Marco Lopez, Michael Lennartz, Dan V. Goia, Carsten Becker, Stéphanie Chevalliot
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Publication number: 20120316054Abstract: The invention discloses core/shell, type catalyst particles comprising a Mcore/Mshell structure with Mcore=inner particle core and Mshell=outer particle shell, wherein the medium diameter of the catalyst particle (dcore+shell) is in the range of 20 to 100 nm, preferably in the range of 20 to 50 nm. The thickness of the outer shell (tshell) is about 5 to 20% of the diameter of the inner particle core of said catalyst particle, preferably comprising at least 3 atomic layers. The core/shell type catalyst particles, particularly the particles comprising a Pt˜based shell reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.Type: ApplicationFiled: July 24, 2012Publication date: December 13, 2012Applicant: UMICORE AG & CO. KGInventors: Marco LOPEZ, Michael LENNARTZ, Dan V. GOIA, Carsten BECKER, Stéphanie CHEVALLIOT
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Patent number: 8304362Abstract: The invention discloses core/shell type catalyst particles comprising a Mcore/Mshell structure with Mcore=inner particle core and Mshell=outer particle shell, wherein the medium diameter of the catalyst particle (dcore+shell) is in the range of 20 to 100 nm, preferably in the range of 20 to 50 nm. The thickness of the outer shell (tshell) is about 5 to 20% of the diameter of the inner particle core of said catalyst particle, preferably comprising at least 3 atomic layers. The core/shell type catalyst particles, particularly the particles comprising a Pt-based shell, reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.Type: GrantFiled: August 27, 2007Date of Patent: November 6, 2012Assignee: Umicore AG & Co. KGInventors: Marco Lopez, Michael Lennartz, Dan V. Goia, Carsten Becker, Stéphanie Chevalliot
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Patent number: 8288308Abstract: The invention discloses core/shell type catalyst particles comprising a Mcore/Mshell structure with Mcore=inner particle core and Mshell?outer particle shell, wherein the medium diameter of the catalyst particle (dcore+shell) is ?20 nm. The thickness of the outer shell (tshell) comprises at least 3 atomic layers. The core/shell type catalyst particles, particularly the particles comprising a Pt-based shell, reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.Type: GrantFiled: June 9, 2010Date of Patent: October 16, 2012Assignee: Umicore AG & Co. KGInventors: Marco Lopez, Michael Lennartz, Dan V. Goia, Carsten Becker, Stephanie Chevalliot
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Patent number: 8227372Abstract: The invention is directed to core/shell type catalyst particles comprising a Mcore/Mshell structure with Mcore=inner particle core and Mshell=outer particle shell, wherein the medium diameter of the catalyst particle (dcore+shell) is in the range of 20 to 100 nm, 5 preferably in the range of 20 to 50 nm. The thickness of the outer shell (tshell) is about 5 to 20% of the diameter of the inner particle core of said catalyst particle, preferably comprising at least 3 atomic layers. The inner particle core (Mcore) of the particles comprises metal or ceramic materials, whereas the material of the outer shell (Mshell) comprises precious metals and/or alloys thereof. The core/shell type catalyst particles are preferably supported on suitable support materials such as carbon black and can be used as electrocatalysts for fuel cells and for other catalytic applications.Type: GrantFiled: August 27, 2007Date of Patent: July 24, 2012Assignee: Umicore AG & Co. KGInventors: Marco Lopez, Michael Lennartz, Dan V. Goia, Carsten Becker, Stéphanie Chevalliot
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Publication number: 20120154896Abstract: Colored conductive fluids for electrowetting or electrofluidic devices, and the devices themselves, are disclosed. The colored conductive fluid includes a polar solvent and a colorant selected from a pigment and/or a dye. The polar solvent has (a) a dynamic viscosity of 0.1 cP to 1000 cP at 25° C., (b) a surface tension of 25 dynes/cm to 90 dynes/cm at 25° C., and (c) an electrowetting relative response of 20% to 80%. The colored conductive fluid itself can have an electrical conductivity from 0.1 ?S/cm to 3,000 ?S/cm and can have no greater than 500 total ppm of monatomic ions with ionic radii smaller than 2.0 ? and polyatomic ions with ionic radii smaller than 1.45 ?. The colored conductive fluid should not cause electrical breakdown of a dielectric in the device in which it is employed. An agent for controlling electrical conductivity can optionally be added to the colored conductive fluid.Type: ApplicationFiled: August 4, 2010Publication date: June 21, 2012Applicant: SUN CHEMICAL CORPORATIONInventors: Lisa Clapp, Jason Heikenfeld, April Milarcik, Russell J. Schwartz, Stanislav G. Vilner, Manjeet Dhindsa, Stephanie Chevalliot
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Publication number: 20110086295Abstract: The invention discloses core/shell type catalyst particles comprising a Mcore/Mshell structure with Mcore=inner particle core and Mshell=outer particle shell, wherein the medium diameter of the catalyst particle (dcore+shell) is ?20 nm. The thickness of the outer shell (tshell) comprises at least 3 atomic layers. The core/shell type catalyst particles, particularly the particles comprising a Pt-based shell, reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.Type: ApplicationFiled: June 9, 2010Publication date: April 14, 2011Applicant: UMICORE AG & CO. KGInventors: Marco LOPEZ, Michael LENNARTZ, Dan V. GOIA, Carsten BECKER, Stephanie CHEVALLIOT
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Publication number: 20100092841Abstract: The invention is directed to core/shell type catalyst particles comprising a Mcore/Mshell structure with Mcore=inner particle core and Mshell=outer particle shell, wherein the medium diameter of the catalyst particle (dcore+shell) is in the range of 20 to 100 nm, 5 preferably in the range of 20 to 50 nm. The thickness of the outer shell (tshell) is about 5 to 20% of the diamet the inner particle core of said catalyst particle, preferably comprising at least 3 atomic layers. The inner particle core (Mcore) of the particles comprises metal or ceramic materials, whereas the material of the outer shell (Mshell) comprises precious metals and/or alloys thereof. The core/shell type catalyst particles are preferably supported on suitable support materials such as carbon black and can be used as electrocatalysts for fuel cells and for other catalytic applications.Type: ApplicationFiled: August 27, 2007Publication date: April 15, 2010Applicant: UMICORE AG & CO. KGInventors: Marco Lopez, Michael Lennartz, Dan V. Goia, Carsten Becker, Stephanie Chevalliot
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Publication number: 20100086832Abstract: The invention discloses core/shell type catalyst particles comprising a Mcore/Mshell structure with Mcore=inner particle core and Mshell=outer particle shell, wherein the medium diameter of the catalyst particle (dcore+shell) is in the range of 20 to 100 nm, preferably in the range of 20 to 50 nm. The thickness of the outer shell (tshell) is about 5 to 20% of the diameter of the inner particle core of said catalyst particle, preferably comprising at least 3 atomic layers. The core/shell type catalyst particles, particularly the particles comprising a Pt-based shell, reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.Type: ApplicationFiled: August 27, 2007Publication date: April 8, 2010Applicant: UMICORE AG & CO. KGInventors: Marco Lopez, Michael Lennartz, Dan V. Goia, Carsten Becker, Stephanie Chevalliot