Patents by Inventor John Whitehead
John Whitehead 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: 8795485Abstract: Microelectrode comprising a body formed from electrically non-conducting material and including at least one region of electrically conducting material and at least one passage extending through the body of non-conducting material and the region of conducting material, the electrically conducting region presenting an area of electrically conducting material to a fluid flowing through the passage in use. An electrochemical cell which includes such a microelectrode is also disclosed.Type: GrantFiled: December 22, 2011Date of Patent: August 5, 2014Assignee: Element Six Technologies LimitedInventors: Andrew John Whitehead, Geoffrey Alan Scarsbrook, Julie Victoria Macpherson, Mark Newton, Patrick Robert Unwin, William Joseph Yost, III
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Patent number: 8501143Abstract: A single crystal diamond prepared by CVD and having one or more electronic characteristics; making the diamond suitable for electronic applications. Also provided is a method of making the single crystal CVD diamond.Type: GrantFiled: October 3, 2008Date of Patent: August 6, 2013Assignee: Element Six Ltd.Inventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, John Lloyd Collins, Ricardo Simon Sussmann, Bärbel Susanne Charlotte Dorn, Andrew John Whitehead, Daniel James Twitchen
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Patent number: 8361289Abstract: An electrode comprising an electrically conducting diamond plate wherein the diamond plate comprises at least one elongate aperture and having an aperture edge length per unit working area of the diamond plate of greater than about 4 mm/mm2, electrolysis cells comprising such electrodes, methods of treating water using such electrolysis cells and a method of production of ozone are disclosed.Type: GrantFiled: November 9, 2007Date of Patent: January 29, 2013Inventors: Andrew John Whitehead, Christopher John Wort, Geoffrey Alan Scarsbrook, William Joseph Yost
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Patent number: 8329268Abstract: A paper-based plant pot comprises a container formed from a sheet of paper-based material wrapped about an axis, opposite edge portions of the sheet being secured to each other, the container having a side wall that encircles the axis and a bottom wall formed by a plurality of bottom panels of the sheet folded inwardly from a lower edge of the side wall and engaging one another. The sheet comprises a paperboard substrate formed of natural cellulose fibers, an internal sizing composition incorporated into the paperboard substrate so as to render the paperboard substrate substantially resistant to saturation by liquid water, and a thermoplastic polymer layer on one of the major surfaces of the paperboard substrate. The thermoplastic polymer layer faces an interior of the container and forms an inner surface thereof for contact with soil or other growing medium placed in the container.Type: GrantFiled: December 7, 2009Date of Patent: December 11, 2012Assignee: Sonoco Development, Inc.Inventors: Susan Bell, Wim van De Camp, William David Decker, Bruce A. Moon, David E. Rhodes, Tony Rummage, John Whitehead
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Patent number: 8252815Abstract: A compound of the formula (I), (II), (III) or (IV) wherein Z, A, B, C, R, R1, R2, Q, and n are as described herein.Type: GrantFiled: March 18, 2011Date of Patent: August 28, 2012Assignee: Purdue Pharma L.P.Inventors: Qun Sun, R. Richard Goehring, Donald Kyle, Zhengming Chen, Sam Victory, John Whitehead
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Patent number: 8242455Abstract: A radiation detector comprises a substrate of diamond material and at least one electrode formed at a surface of the substrate. The electrode comprises electrically conductive material deposited in a cavity in the surface of the substrate so that at least a portion of the material of the electrode is below the surface of the substrate. The cavity will typically be an elongate trench or channel in which electrically conductive material such as boron-doped diamond is deposited. In some embodiments, at least two electrodes are located adjacent to one another at the surface of the substrate. In other embodiments, the device has a plurality of electrodes, at least one of which is located at a first surface and at least one of which is located at an opposed second surface of the substrate.Type: GrantFiled: November 12, 2007Date of Patent: August 14, 2012Assignee: Diamond Detectors LimitedInventors: Andrew John Whitehead, Christopher John Wort, Kevin John Oliver
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Publication number: 20120095049Abstract: A compound of the formula (I), (II), (III) or (IV) wherein Z, A, B, C, R, R1, R2, Q, and n are as described herein.Type: ApplicationFiled: March 18, 2011Publication date: April 19, 2012Applicant: Purdue Pharma L.P.Inventors: Qun SUN, R. Richard Goehring, Donald Kyle, Zhengming Chen, Sam Victory, John Whitehead
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Publication number: 20120090997Abstract: Microelectrode comprising a body formed from electrically non-conducting material and including at least one region of electrically conducting material and at least one passage extending through the body of non-conducting material and the region of conducting material, the electrically conducting region presenting an area of electrically conducting material to a fluid flowing through the passage in use. An electrochemical cell which includes such a microelectrode is also disclosed.Type: ApplicationFiled: December 22, 2011Publication date: April 19, 2012Inventors: Andrew John WHITEHEAD, Geoffrey Alan Scarsbrook, Julie Victoria Macpherson, Mark Newton, Patrick Robert Unwin, William Joseph Yost, III
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Patent number: 8105469Abstract: Microelectrode comprising a body formed from electrically non-conducting material and including at least one region of electrically conducting material and at least one passage extending through the body of non-conducting material and the region of conducting material, the electrically conducting region presenting an area of electrically conducting material to a fluid flowing through the passage in use. An electrochemical cell which includes such a microelectrode is also disclosed.Type: GrantFiled: March 19, 2007Date of Patent: January 31, 2012Inventors: Andrew John Whitehead, Geoffrey Alan Scarsbrook, Julie Victoria MacPherson, Mark Newton, Patrick Robert Unwin, William Joseph Yost, III
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Patent number: 7997835Abstract: A tool (10) including a drive shaft (36) having an axis of rotation, and a plurality of bit holders (28,30) interchangeable with one another at a position of use. The bit holders (28,30) being mounted on a turret (26) which is rotatable around an axis (k) set at an angle to the axis of rotation of the drive shaft (36). The drive shaft (36) being in drive connection with a respective bit holder (28,30) at the position of use, wherein the tool (10) includes means (20x) for engaging a clutch (46) which activates a drive train (44) to establish a drive connection between the drive shaft (36) and the turret (26) so that subsequent operation of the drive shaft (36) rotates the turret (26) to interchange the positions of the bit holders (28,30) at the position of use, and wherein after the turret (26) has been rotated the clutch (46) is disengaged to deactivate the drive train (44) to prevent any further rotation of the turret (26).Type: GrantFiled: April 19, 2010Date of Patent: August 16, 2011Assignee: Whitehot Solutions Pty. Ltd.Inventors: John Whitehead, Iain White, Mark Van Vegten
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Publication number: 20110135856Abstract: A paper-based plant pot comprises a container formed from a sheet of paper-based material wrapped about an axis, opposite edge portions of the sheet being secured to each other, the container having a side wall that encircles the axis and a bottom wall formed by a plurality of bottom panels of the sheet folded inwardly from a lower edge of the side wall and engaging one another. The sheet comprises a paperboard substrate formed of natural cellulose fibers, an internal sizing composition incorporated into the paperboard substrate so as to render the paperboard substrate substantially resistant to saturation by liquid water, and a thermoplastic polymer layer on one of the major surfaces of the paperboard substrate. The thermoplastic polymer layer faces an interior of the container and forms an inner surface thereof for contact with soil or other growing medium placed in the container.Type: ApplicationFiled: December 7, 2009Publication date: June 9, 2011Inventors: Susan Bell, Wim van De Camp, William David Decker, Bruce A. Moon, David E. Rhodes, Tony Rummage, John Whitehead
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Patent number: 7939670Abstract: A compound of the formula (I), (II), (III) or (IV) wherein Z, A, B, C, R, R1, R2, Q, and n are as described herein.Type: GrantFiled: February 23, 2009Date of Patent: May 10, 2011Assignee: Purdue Pharma L.P.Inventors: Qun Sun, R. Richard Goehring, Donald Kyle, Zhengming Chen, Sam Victory, John Whitehead
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Patent number: 7887628Abstract: A layer of single crystal CVD diamond of high quality having a thickness greater than 2 mm. Also provided is a method of producing such a CVD diamond layer.Type: GrantFiled: March 5, 2007Date of Patent: February 15, 2011Assignee: Element Six Technologies (Pty) LtdInventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, Barbel Susanne Charlotte Dorn, Michael Andrew Cooper, John Lloyd Collins, Andrew John Whitehead, Daniel James Twitchen, Ricardo Simon Sussman
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Patent number: 7842134Abstract: The invention relates to a method of manufacture of a substrate for fabrication of semiconductor layers or devices, comprising the steps of providing a wafer of silicon including at least one first surface suitable for use as a substrate for CVD diamond synthesis, growing a layer of CVD diamond of predetermined thickness and having a growth face onto the first surface of the silicon wafer, reducing the thickness of the silicon wafer to a predetermined level, and providing a second surface on the silicon wafer that is suitable for further synthesis of at least one semiconductor layer suitable for use in electronic devices or synthesis of electronic devices on the second surface itself and to a substrate suitable for GaN device growth consisting of a CVD diamond layer intimately attached to a silicon surface.Type: GrantFiled: March 20, 2006Date of Patent: November 30, 2010Inventors: Andrew John Whitehead, Christopher John Howard Wort, Geoffrey Alan Scarsbrook
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Publication number: 20100202842Abstract: A tool (10) including a drive shaft (36) having an axis of rotation, and a plurality of bit holders (28,30) interchangeable with one another at a position of use. The bit holders (28,30) being mounted on a turret (26) which is rotatable around an axis (k) set at an angle to the axis of rotation of the drive shaft (36). The drive shaft (36) being in drive connection with a respective bit holder (28,30) at the position of use, wherein the tool (10) includes means (20x) for engaging a clutch (46) which activates a drive train (44) to establish a drive connection between the drive shaft (36) and the turret (26) so that subsequent operation of the drive shaft (36) rotates the turret (26) to interchange the positions of the bit holders (28,30) at the position of use, and wherein after the turret (26) has been rotated the clutch (46) is disengaged to deactivate the drive train (44) to prevent any further rotation of the turret (26).Type: ApplicationFiled: April 19, 2010Publication date: August 12, 2010Inventors: John Whitehead, Iain White, Mark Van Vegten
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Publication number: 20100155615Abstract: A radiation detector comprises a substrate of diamond material and at least one electrode formed at a surface of the substrate. The electrode comprises electrically conductive material deposited in a cavity in the surface of the substrate so that at least a portion of the material of the electrode is below the surface of the substrate. The cavity will typically be an elongate trench or channel in which electrically conductive material such as boron-doped diamond is deposited. In some embodiments, at least two electrodes are located adjacent to one another at the surface of the substrate. In other embodiments, the device has a plurality of electrodes, at least one of which is located at a first surface and at least one of which is located at an opposed second surface of the substrate.Type: ApplicationFiled: November 12, 2007Publication date: June 24, 2010Applicant: DIAMOND DETECTORS LIMITEDInventors: Andrew John Whitehead, Christopher John Wort, Kevin John Oliver
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Patent number: 7740824Abstract: A CVD single crystal diamond material suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material is produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications.Type: GrantFiled: November 21, 2003Date of Patent: June 22, 2010Inventors: Herman Philip Godfried, Geoffrey Alan Scarsbrook, Daniel James Twitchen, Evert Pieter Houwman, Wilhelmus Gertruda Maria Nelissen, Andrew John Whitehead, Clive Edward Hall, Philip Maurice Martineau
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Publication number: 20100129614Abstract: A low-density structural panel is made from used paper material such as shredded or divided old corrugated containers (OCC). The pieces of used paper material are mixed with an adhesive and the mixture is formed into a layer. The layer is compressed with a compression device to reduce its thickness and increase its density. The layer is heated to hasten the hardening of the adhesive. The process can be a batch process or a continuous process.Type: ApplicationFiled: May 8, 2008Publication date: May 27, 2010Applicant: SONOCO DEVELOPMENT, INC.Inventors: John Whitehead, Myles Cohen, Lawrence E. Renck, Terry Gerhardt
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Publication number: 20100116197Abstract: A CVD single crystal diamond material suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material is produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications.Type: ApplicationFiled: January 21, 2010Publication date: May 13, 2010Inventors: Herman Philip Godfried, Geoffrey Alan Scarsbrook, Daniel James Twitchen, Evert Pieter Houwman, Wilhelmus Gertruda Maria Nelissen, Andrew John Whitehead, Clive Edward Hall, Philip Maurice Martineau
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Publication number: 20100106414Abstract: A method of performing routing in a global navigation satellite system (GNSS) navigation device incorporates user preferences determined through driving habits of the user. The GNSS navigation device stores a driving history, namely a plurality of route segments corresponding to maneuvers of a driver. The GNSS navigation device then determines which route segments of the plurality of route segments the user prefers based on the driving history. When generating a route, the GNSS navigation device then includes the preferred route segment.Type: ApplicationFiled: October 27, 2008Publication date: April 29, 2010Inventor: John Whitehead