Patents by Inventor Stéphane Courvoisier
Stéphane Courvoisier 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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Patent number: 11744672Abstract: The present invention relates to a dental drill (10) formed of titanium or a titanium alloy having a hardness greater than pure titanium, said drill extending along a central axis (A) from a proximal end (14) to a distal end (16). The drill comprises a shank (12) arranged in a proximal end region of the drill (10) and extending along the central axis (A), a flute portion (20) arranged distally to and running coaxially with the shank (12), said flute portion (20) comprising two or more flutes (22a, 22b, 22c) extending along the flute portion (20) and being interposed by lands (24a, 24b, 24c), the flute portion further comprising a central solid web and a drill tip (26) directly adjoining the distal end (28) of the flute portion (20) and comprising two or more flanks (25a, 25b, 25c) which taper radially inwardly from the distal end of each land in the distal direction toward the central axis (A), each flank (25a, 25b, 25c) comprising a cutting edge (30a, 30b, 30c).Type: GrantFiled: April 30, 2018Date of Patent: September 5, 2023Assignee: STRAUMANN HOLDING AGInventors: Stéphane Courvoisier, Eric Jeanbourqin, Jean-Pierre Pauchard, Stefan Müller, Frederik Panse, Steffen Kühne
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Publication number: 20230097918Abstract: A dental tool, such as an insertion tool for a dental implant, including a shaft extending along a longitudinal axis and having a distal end and a proximal end, the tool further including an annular resilient retention member formed of a metal material and connected to the shaft such that at least a section of the member protrudes from a surface of the shaft.Type: ApplicationFiled: December 5, 2022Publication date: March 30, 2023Applicant: STRAUMANN HOLDING AGInventors: Stéphane COURVOISIER, Florian DALLA TORRE
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Publication number: 20230091999Abstract: The present invention relates to a dental drill (10) formed of titanium or a titanium alloy having a hardness greater than pure titanium, said drill extending along a central axis (A) from a proximal end (14) to a distal end (16). The drill comprises a shank (12) arranged in a proximal end region of the drill (10) and extending along the central axis (A), a flute portion (20) arranged distally to and running coaxially with the shank (12), said flute portion (20) comprising two or more flutes (22a, 22b, 22c) extending along the flute portion (20) and being interposed by lands (24a, 24b, 24c), the flute portion further comprising a central solid web and a drill tip (26) directly adjoining the distal end (28) of the flute portion (20) and comprising two or more flanks (25a, 25b, 25c) which taper radially inwardly from the distal end of each land in the distal direction toward the central axis (A), each flank (25a, 25b, 25c) comprising a cutting edge (30a, 30b, 30c).Type: ApplicationFiled: April 30, 2018Publication date: March 23, 2023Applicant: STRAUMANN HOLDING AGInventors: Stéphane COURVOISIER, Eric JEANBOURQIN, Jean-Pierre PAUCHARD, Stefan MÜLLER, Frederik PANSE, Steffen KÜHNE
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Patent number: 11547529Abstract: A dental tool, such as an insertion tool for a dental implant, including a shaft extending along a longitudinal axis and having a distal end and a proximal end, the tool further including an annular resilient retention member formed of a metal material and connected to the shaft such that at least a section of the member protrudes from a surface of the shaft.Type: GrantFiled: January 8, 2014Date of Patent: January 10, 2023Assignee: STRAUMANN HOLDING AGInventors: Stéphane Courvoisier, Florian Dalla Torre
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Publication number: 20220151732Abstract: A torque wrench, including: a head region with a receiving opening; a bending-resistant shaft region adjoins the head region; a support formed on the shaft region; and an actuating lever including an elastically bendable portion and a handle. The receiving opening receives a screwing instrument and defines an axis of rotation. The actuating lever, in resting position, is spaced apart from the in the circumferential direction to the axis of rotation. If a screwing instrument is inserted into the opening, the actuating lever transmits a torque. The wrench has an indicator region, which the exerted torque can be read as a result of the deflection of the actuating lever. When a reference force is reached, the bending portion comes into contact with the support. When a force is applied, the bending portion can be in the tightening direction and the torque can be read in the region.Type: ApplicationFiled: March 13, 2020Publication date: May 19, 2022Applicant: STRAUMANN HOLDING AGInventors: Damien MAURY, Stéphane COURVOISIER
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Publication number: 20220000589Abstract: A tool for use in dental implants wherein said tool includes a retention element held in the tool shaft via a friction fit. The retention element being adapted to grip a variety of impact drivers via a frictional fit for use in tightening procedures of a dental procedure. Wherein said tool also includes a variety of features for interaction with additional dental instruments, or that aid in cleaning and sanitization of the tool.Type: ApplicationFiled: October 14, 2019Publication date: January 6, 2022Applicant: STRAUMANN HOLDING AGInventors: Damien MAURY, Stéphane COURVOISIER, Azagen MOOTIEN, Florian DALLA TORRE
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Publication number: 20210308901Abstract: A powder injection molding apparatus including an injection unit, mold formed of two mold parts with parting surface between first and second mold part, enclosing in assembled state of mold a mold cavity fluidically connected with injection unit via transfer channel, vibrational energy generator and transducer, and clamping unit designed to retain under the effect of clamping force first and second mold parts in contact with each other. Apparatus is characterized in that first and second mold parts include a first and second retaining hole, respectively, each extending essentially perpendicularly to parting surface and arranged opposite to each other respective to parting surface, clamping unit includes first and second pin each extending essentially perpendicularly to parting surface, wherein first and second pins cooperate in assembled state of mold with retaining portion of first and second retaining holes, respectively, to retain first and second mold parts in contact with each other.Type: ApplicationFiled: July 22, 2019Publication date: October 7, 2021Applicant: STRAUMANN HOLDING AGInventors: Gabriele BORDOLI, Bruno BUERGISSER, Marc STEPHAN, Stephane COURVOISIER
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Publication number: 20210187806Abstract: A process for the preparation of an article by powder injection molding, the process including the steps of providing a feedstock containing a powder of a ceramic, a metal or a metal alloy dispersed in a binder, heating the feedstock, and injecting the heated feedstock into a mold cavity of a mold, where it cools and hardens to the configuration of the mold cavity. The process is characterized in that step c) is carried out under the application of vibrational energy onto the feedstock.Type: ApplicationFiled: July 22, 2019Publication date: June 24, 2021Applicant: STRAUMANN HOLDING AGInventors: Gabriele BORDOLI, Bruno BUERGISSER, Marc STEPHAN, Stéphane COURVOISIER
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Patent number: 10470851Abstract: A self-retaining screw assembly comprising a dental secondary component and a screw. The secondary component comprises a through passage having an apical and a coronal open end, and a screw seat located between said apical and coronal ends. The screw comprises a screw rod and a screw head, the screw head being dimensioned to abut against the screw seat and the screw rod being dimensioned to pass unhindered through the through passage such that the apical end of the rod can protrude from the apical end of the through passage. The through passage further comprises, coronal of the screw seat, a first section and, directly coronal of the first section a second section having a narrower diameter than the first section, such that the second section forms a restriction in the through passage. The screw head comprises a radially outwardly extending retaining element.Type: GrantFiled: December 22, 2014Date of Patent: November 12, 2019Assignee: STRAUMANN HOLDING AGInventors: Stéphane Courvoisier, Silvio Blumenthal
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Patent number: 9770247Abstract: The shank (12) of a disposable rotary cutting tool (10) comprises a pipe section (16) cut from a drawn metal pipe. The tool head (14) is formed from a cut-out (18a, 18b) of a drawn metal sheet or a section of a metal tube by non-cutting machining. The pipe section (16) and the tool head (14) are advantageously attached by force fitting.Type: GrantFiled: April 6, 2009Date of Patent: September 26, 2017Assignee: Straumann Holding AGInventor: Stephane Courvoisier
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Patent number: 9770312Abstract: Dental implant having a socket arrangement having the shape of a regular octagon which is partly interrupted by outwardly extending notches being parallel or parallel and partly inclined with respect to the longitudinal center axis of the implant, the inclination being such as to taper inwardly from their coronal end, wherein interrupting and outwardly extending ridges extending from the notches in an apical direction of the dental implant, first contact surfaces being adapted to engage and rotationally secure an abutment, and wherein second contact surfaces extend from the notches within the ridges in the direction of the longitudinal center axis, the second contact surfaces being adapted to engage with an insertion tool; and wherein the notches are positioned at sides or at corners of the regular octagon.Type: GrantFiled: June 9, 2014Date of Patent: September 26, 2017Assignee: STRAUMANN HOLDING AGInventors: Daniel Guenter, Stephane Courvoisier, Miodrag Lazic, Florian Dalla Torre
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Patent number: 9757214Abstract: A threaded dental implant to be screwed into a jawbone for supporting at least one abutment and/or a dental superstructure, and having a socket arrangement with a first section and a second section with respective geometrical profiles around a longitudinal center axis of the implant. The first section cooperates with the abutment for securing the abutment in a determined position in the implant. The second section cooperates with an insertion tool for screwing the implant into the jawbone. The first section includes an annular coronal contact surface on top of an opening centric at a coronal end of the implant, followed in an apical direction by a first tapered section having a diameter decreasing in the apical direction, by a first cylindrical section, by first anti-rotational elements and by a threaded section.Type: GrantFiled: June 9, 2014Date of Patent: September 12, 2017Assignee: STRAUMANN HOLDING AGInventors: Daniel Guenter, Stephane Courvoisier, Miodrag Lazic, Florian Dalla Torre
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Patent number: 9532856Abstract: Fastening system including a screw component (10) and a seating component (20). The screw component has a shaft (12) extending along a longitudinal axis (5) and having a maximum radius R1, said shaft comprising a threaded section (13), said screw component further including, at one end of the screw shaft, a head (14), the head comprising a bottom end (15) having a larger maximum radius R2 than the screw shaft such that an exposed underside (18) of the screw head extends radially beyond the maximum radius of the screw shaft. The seating component includes a screw channel (21) having a planar screw seat (22) having a minimum radius R3 which is equal to or greater than R1.Type: GrantFiled: July 9, 2015Date of Patent: January 3, 2017Assignee: Straumann Holding AGInventor: Stephane Courvoisier
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Publication number: 20160317254Abstract: A self-retaining screw assembly comprising a dental secondary component and a screw. The secondary component comprises a through passage having an apical and a coronal open end, and a screw seat located between said apical and coronal ends. The screw comprises a screw rod and a screw head, the screw head being dimensioned to abut against the screw seat and the screw rod being dimensioned to pass unhindered through the through passage such that the apical end of the rod can protrude from the apical end of the through passage. The through passage further comprises, coronal of the screw seat, a first section and, directly coronal of the first section a second section having a narrower diameter than the first section, such that the second section forms a restriction in the through passage. The screw head comprises a radially outwardly extending retaining element.Type: ApplicationFiled: December 22, 2014Publication date: November 3, 2016Applicant: STRAUMANN HOLDING AGInventors: Stéphane COURVOISIER, Silvio BLUMENTHAL
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Publication number: 20160143708Abstract: Dental implant having a socket arrangement having the shape of a regular octagon which is partly interrupted by outwardly extending notches being parallel or parallel and partly inclined with respect to the longitudinal center axis of the implant, the inclination being such as to taper inwardly from their coronal end, wherein interrupting and outwardly extending ridges extending from the notches in an apical direction of the dental implant, first contact surfaces being adapted to engage and rotationally secure an abutment, and wherein second contact surfaces extend from the notches within the ridges in the direction of the longitudinal center axis, the second contact surfaces being adapted to engage with an insertion tool; and wherein the notches are positioned at sides or at corners of the regular octagon.Type: ApplicationFiled: June 9, 2014Publication date: May 26, 2016Applicant: STRAUMANN HOLDING AGInventors: Daniel GUENTER, Stephane COURVOISIER, Miodrag LAZIC, Florian DALLA TORRE
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Publication number: 20160113738Abstract: A threaded dental implant to be screwed into a jawbone for supporting at least one abutment and/or a dental superstructure, and having a socket arrangement with a first section and a second section with respective geometrical profiles around a longitudinal center axis of the implant. The first section cooperates with the abutment for securing the abutment in a determined position in the implant. The second section cooperates with an insertion tool for screwing the implant into the jawbone. The first section includes an annular coronal contact surface on top of an opening centric at a coronal end of the implant, followed in an apical direction by a first tapered section having a diameter decreasing in the apical direction, by a first cylindrical section, by first anti-rotational elements and by a threaded section.Type: ApplicationFiled: June 9, 2014Publication date: April 28, 2016Applicant: STRAUMANN HOLDING AGInventors: Daniel GUENTER, Stephane COURVOISIER, Miodrag LAZIC, Florian DALLA TORRE
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Publication number: 20150351867Abstract: A dental tool, such as an insertion tool for a dental implant, including a shaft extending along a longitudinal axis and having a distal end and a proximal end, the tool further including an annular resilient retention member formed of a metal material and connected to the shaft such that at least a section of the member protrudes from a surface of the shaft.Type: ApplicationFiled: January 8, 2014Publication date: December 10, 2015Inventors: Stéphane COURVOISIER, Florian DALLA TORRE
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Publication number: 20150305837Abstract: Fastening system including a screw component (10) and a seating component (20). The screw component has a shaft (12) extending along a longitudinal axis (5) and having a maximum radius R1, said shaft comprising a threaded section (13), said screw component further including, at one end of the screw shaft, a head (14), the head comprising a bottom end (15) having a larger maximum radius R2 than the screw shaft such that an exposed underside (18) of the screw head extends radially beyond the maximum radius of the screw shaft. The seating component includes a screw channel (21) having a planar screw seat (22) having a minimum radius R3 which is equal to or greater than R1.Type: ApplicationFiled: July 9, 2015Publication date: October 29, 2015Inventor: Stephane Courvoisier
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Patent number: 9119688Abstract: A holding device for retaining and transporting a dental implant, particularly a dental implant stored in an ampule having preserving fluid, is provided. The holding device has a securing section, which has a force transmission element for rotationally securing the dental implant and an attachment element having one or more resilient arms formed integrally with and distally of the force transmission element, for longitudinally retaining the dental implant. The resilient arms do not extend beyond the radial perimeter of the force transmission element. The resilient arms can be transformed between a first operative configuration and a second compressed configuration under forces during operation, to allow a radially enlarged end of the arms to releasably engage an undercut of the dental implant.Type: GrantFiled: March 1, 2012Date of Patent: September 1, 2015Assignee: STRAUMANN HOLDING AGInventors: Frank Kenk, Stéphane Courvoisier, Guillaume Bugnard, Miodrag Lazic
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Patent number: 9095398Abstract: Secondary component for connection to a dental implant having an internal bore, said secondary component having a head part and a base part, the head part including a coronal portion which in use protrudes from the dental implant, and, apical of the coronal portion, an attachment portion, the base part including implant connection means for connection to an implant and fastening means, wherein the attachment portion and fastening means can be directly coupled together in a rotatable manner in order to axially join the head and base parts together, while still enabling the base part to be rotated relative to the head part such that the implant connection means can engage the implant and secure the secondary component to this, the head part further including a through passage extending from the coronal portion to the attachment portion and the base part including drive means which, when the head and base parts are coupled together, is in communication with this passage.Type: GrantFiled: May 31, 2012Date of Patent: August 4, 2015Assignee: Straumann Holding AGInventors: Stephane Courvoisier, Jost Lussi