Patents by Inventor Kenneth Evans
Kenneth Evans 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: 20250243090Abstract: A discrimination system with optics that collect output electromagnetic radiation from sperm cells within a measurement region, a split detector that generates an electrical signal responsive to the intensity of the collected electromagnetic radiation and which detects the position of sperm cells in the measurement region, and an analyzer for discriminating between X-chromosome bearing sperm and Y-chromosome bearing sperm in the measurement region.Type: ApplicationFiled: February 28, 2025Publication date: July 31, 2025Applicant: Inguran, LLCInventors: Peter Kiesel, Todd Karin, Kenneth Evans
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Patent number: 11332980Abstract: A drill bit for removing subterranean formation material in a borehole comprises a bit body comprising a longitudinal axis, a plurality of blades extending radially outward from the longitudinal axis along a face region of the bit body and extending axially along a gauge region of the bit body, and an insert coupled to at least one blade in the gauge region. The insert comprises an elongated body having an upper surface, a lower surface, and a longitudinal axis extending centrally therethrough and intersecting the upper and lower surfaces. The upper surface comprises a bearing surface for supporting for the drill bit and providing a surface on which the subterranean formation being drilled rubs against the insert without exceeding the compressive strength of the selected formation. The insert is coupled to the blade such that the upper surface thereof extends radially beyond an outer surface of the blade and the lower surface thereof extends radially below the outer surface of the blade.Type: GrantFiled: September 28, 2018Date of Patent: May 17, 2022Assignee: Baker Hughes Holdings LLCInventors: Robert E. Grimes, Steven Craig Russell, Kenneth Evans, Stephen Manson Slavens, Reed W. Spencer
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Publication number: 20200256132Abstract: A drill bit for removing subterranean formation material in a borehole comprises a bit body comprising a longitudinal axis, a plurality of blades extending radially outward from the longitudinal axis along a face region of the bit body and extending axially along a gauge region of the bit body, and an insert coupled to at least one blade in the gauge region. The insert comprises an elongated body having an upper surface, a lower surface, and a longitudinal axis extending centrally therethrough and intersecting the upper and lower surfaces. The upper surface comprises a bearing surface for supporting for the drill bit and providing a surface on which the subterranean formation being drilled rubs against the insert without exceeding the compressive strength of the selected formation. The insert is coupled to the blade such that the upper surface thereof extends radially beyond an outer surface of the blade and the lower surface thereof extends radially below the outer surface of the blade.Type: ApplicationFiled: September 28, 2018Publication date: August 13, 2020Inventors: Robert E. Grimes, Steven Craig Russell, Kenneth Evans, Stephen Manson Slavens, Reed W. Spencer
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Patent number: 9641182Abstract: A digital phase-and-frequency controller. In one embodiment, the controller includes: (1) a first segment accumulator operable to accumulate errors while an accumulation-selection signal has a first value and (2) a second segment accumulator operable to accumulate errors while said accumulation-selection signal has a second value, and (3) circuitry operable to produce the control signal using the errors accumulated in the first segment accumulator while a use-selection signal has a first value and the errors accumulated in the second segment accumulator while the use-selection signal has a second value.Type: GrantFiled: January 31, 2014Date of Patent: May 2, 2017Assignee: Nvidia CorporationInventor: Kenneth Evans
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Patent number: 9382962Abstract: A vibration damping body including an auxetic cellular structure having cell walls therein formed substantially of a first material having a first stiffness, the cellular structure further including a second material attached to said cell walls, the second material being selectively located throughout the cellular structure so as to include less than 50% by mass thereof and having a second stiffness which is lower than said first stiffness.Type: GrantFiled: February 8, 2011Date of Patent: July 5, 2016Assignee: ROLLS-ROYCE plcInventors: Fabrizio Scarpa, Christopher W. Smith, Wayne Miller, Kenneth Evans, Ramesh Rajasekaran
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Publication number: 20150222284Abstract: A digital phase-and-frequency controller. In one embodiment, the controller includes: (1) a first segment accumulator operable to accumulate errors while an accumulation-selection signal has a first value and (2) a second segment accumulator operable to accumulate errors while said accumulation-selection signal has a second value, and (3) circuitry operable to produce the control signal using the errors accumulated in the first segment accumulator while a use-selection signal has a first value and the errors accumulated in the second segment accumulator while the use-selection signal has a second value.Type: ApplicationFiled: January 31, 2014Publication date: August 6, 2015Applicant: Nvidia CorporationInventor: Kenneth Evans
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Patent number: 8530045Abstract: A process for the production of a polymeric film comprising a copolyester having an acid component and a diol component, said acid component comprising a dicarboxylic acid and a sulfomonomer containing a sulfonate group attached to the aromatic nucleus of an aromatic dicarboxylic acid, said process comprising the steps of: (i) melt-extruding a layer of said copolyester; (ii) stretching the extrudate in at least one direction; (iii) heat-setting the film by raising the temperature of the stretched film to a temperature T1 in a first heating zone such that (TM?T1 is in the range of from 5 to 30° C., and then raising the temperature of the film to a temperature T2 in a second heating zone such that (TM?T2 is in the range of from 0 to 10° C.Type: GrantFiled: February 23, 2010Date of Patent: September 10, 2013Inventors: William Alasdair MacDonald, Pierre Georges Osborne Moussalli, Kenneth Evans, Julian Peter Attard, David Boyce, Brian John Farmer, David Edward Robins
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Publication number: 20120315456Abstract: A vibration damping body including an auxetic cellular structure having cell walls therein formed substantially of a first material having a first stiffness, the cellular structure further including a second material attached to said cell walls, the second material being selectively located throughout the cellular structure so as to include less than 50% by mass thereof and having a second stiffness which is lower than said first stiffness.Type: ApplicationFiled: February 8, 2011Publication date: December 13, 2012Applicant: ROLLS-ROYCE PLCInventors: Fabrizio Scarpa, Christopher W. Smith, Wayne Miller, Kenneth Evans, Ramesh Rajasekaran
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Publication number: 20100212804Abstract: A process for the production of a polymeric film comprising a copolyester having an acid component and a diol component, said acid component comprising a dicarboxylic acid and a sulfomonomer containing a sulfonate group attached to the aromatic nucleus of an aromatic dicarboxylic acid, said process comprising the steps of: (i) melt-extruding a layer of said copolyester; (ii) stretching the extrudate in at least one direction; (iii) heat-setting the film by raising the temperature of the stretched film to a temperature T1 in a first heating zone such that (TM?T1 is in the range of from 5 to 30° C., and then raising the temperature of the film to a temperature T2 in a second heating zone such that (TM?T2 is in the range of from 0 to 10° C.Type: ApplicationFiled: February 23, 2010Publication date: August 26, 2010Applicant: DuPont Teijin Films U.S. Limited PartnershipInventors: William Alasdair MacDonald, Pierre Georges Osborne Moussalli, Kenneth Evans, Jullian Peter Attard, David Boyce, Christopher Charles Naylor, Brian John Farmer, David Edward Robins
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Patent number: 7718104Abstract: A process for the production of a polymeric film comprising a copolyester having an acid component and a diol component, said acid component comprising a dicarboxylic acid and a sulfomonomer containing a sulfonate group attached to the aromatic nucleus of an aromatic dicarboxylic acid, said process comprising the steps of: (i) melt-extruding a layer of said copolyester; (ii) stretching the extrudate in at least one direction; (iii) heat-setting the film by raising the temperature of the stretched film to a temperature T1 in a first heating zone such that (TM-T1) is in the range of from 5 to 30° C., and then raising the temperature of the film to a temperature T2 in a second heating zone such that (TM-T2 is in the range of from 0 to 10° C.Type: GrantFiled: December 6, 2002Date of Patent: May 18, 2010Assignee: Dupont Teijin Films US Ltd.Inventors: William Alasdair MacDonald, Pierre Georges Osborne Moussalli, Kenneth Evans, Julian Peter Attard, David Boyce, Christopher Charles Naylor, Brian John Farmer, legal representative, David Edward Robins, legal representative
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Publication number: 20080260917Abstract: The use of a heat-sealable, composite film comprising a polymeric substrate layer having a first and second surface and disposed on a surface of the substrate layer a barrier layer, wherein (i) the substrate layer has one or more venting means therein; (ii) the thickness of the barrier layer is from about 0.05 to about 30 ?m; (iii) the barrier layer comprises a polyester thermoplastic elastomer; and (iv) the Tensile Elongation At Break of the barrier layer measured according to ASTM D882 is at least 250%, as packaging for an ovenable meal.Type: ApplicationFiled: January 11, 2006Publication date: October 23, 2008Inventors: Stephen William Sankey, Kenneth Evans, David Voisin
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Patent number: 7368165Abstract: A heat-sealable polymeric film includes a substrate layer of polymeric material having on a surface thereof a heat-sealable coating layer. The layer includes a copolyester and is less than 8 ?m in thickness. The copolyester consists essentially of repeat units of one or more aromatic dicarboxylic acids, one or more aliphatic dicarboxylic acids, and a stoichiometric amount of a glycol component consisting of one or more glycols selected from the group consisting of aliphatic glycols and cycloaliphatic glycols.Type: GrantFiled: June 16, 2005Date of Patent: May 6, 2008Assignee: DuPont Teijin Films U.S. Limited PartnershipInventors: Stephen William Sankey, Kenneth Evans, Mark Russell Hodgson
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Publication number: 20070117086Abstract: A flow cytometry system (1) for sorting haploid cells, specifically irradiatable sperm cells, with an intermittingly punctuated radiation emitter (56). Embodiments include a beam manipulator (21) and even split radiation beams directed to multiple nozzles (5). Differentiation of sperm characteristics with increased resolution may efficiently allow differentiated sperm cells to be separated higher speeds and even into subpopulations having higher purity.Type: ApplicationFiled: May 25, 2006Publication date: May 24, 2007Applicant: XY, Inc.Inventors: Kenneth Evans, Thomas Gilligan
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Publication number: 20070072872Abstract: The invention relates to the use of flibanserin, or a pharmaceutically acceptable acid addition salt thereof, for the treatment of disorders of sexual desire.Type: ApplicationFiled: September 21, 2006Publication date: March 29, 2007Applicant: Boehringer Ingelheim Pharma KGInventors: Franco Borsini, Kenneth Evans
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Publication number: 20070031667Abstract: The invention provides composite components, structures and method for producing composite components A composite component has a negative effective Poisson's ratio and comprises a first component and a second component. The first component and the second component extend longitudinally relative to an axis, the first component being provided around the second component through one or more turns which are spaced longitudinally relative to the axis. A variation in the tensile load on the first component causes the radial position of the second component relative to the axis to vary.Type: ApplicationFiled: March 26, 2004Publication date: February 8, 2007Applicant: Dow Corning Limited (GB)Inventors: Patrick Hook, Kenneth Evans, Jonathan Hannington, Claire Hartmann-Thompson, Timothy Bunce
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Publication number: 20060263829Abstract: A flow cytometry system (1) for sorting haploid cells, specifically irradiatable sperm cells, with an intermittingly punctuated radiation emitter (56). Embodiments include a beam manipulator (21) and even split radiation beams directed to multiple nozzles (5). Differentiation of sperm characteristics with increased resolution may efficiently allow differentiated sperm cells to be separated higher speeds and even into subpopulations having higher purity.Type: ApplicationFiled: May 15, 2004Publication date: November 23, 2006Inventors: Kenneth Evans, Thomas Gilligan, Tae Kwang Suh, Todd Cox
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Publication number: 20060180505Abstract: A method of separating at least part of one or more components from a mixture of components includes exposing the mixture to a porous barrier, the barrier being formed of a material structure having, or behaving in the manner associated with, a negative Poisson ratio. Through the use of such materials, improved reparations, improved de-fouling of barriers and a variety of other beneficial properties can be obtained.Type: ApplicationFiled: March 21, 2006Publication date: August 17, 2006Inventors: Andrew Alderson, Kenneth Evans, John Rasburn
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Publication number: 20060141628Abstract: high resolution particle differentiation process and separation system that provides enhanced resolution of particles based upon selected particle characteristics. In particular, the system may include an enhanced resolution flow cytometer. In an embodiment, the invention can include at least one fluid source conduit (24) that introduces 0 fluid source stream (24) into an enhanced resolution nozzle (25) at an angle that enhances particle resolution by the cell sensing system (13).Type: ApplicationFiled: August 15, 2003Publication date: June 29, 2006Applicant: XY, Inc.Inventor: Kenneth Evans
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Publication number: 20050258563Abstract: A process for the production of a polymeric film comprising a copolyester having an acid component and a diol component, said acid component comprising a dicarboxylic acid and a sulfomonomer containing a sulfonate group attached to the aromatic nucleus of an aromatic dicarboxylic acid, said process comprising the steps of: (i) melt-extruding a layer of said copolyester; (ii) stretching the extrudate in at least one direction; (iii) heat-setting the film by raising the temperature of the stretched film to a temperature T1 in a first heating zone such that (TM-T1) is in the range of from 5 to 30° C., and then raising the temperature of the film to a temperature T2 in a second heating zone such that (TM-T2 is in the range of from 0 to 10° C.Type: ApplicationFiled: December 6, 2002Publication date: November 24, 2005Inventors: William MacDonald, Pierre Moussalli, Kenneth Evans, Julian Attard, David Boyce, Christopher Naylor, Brian Farmer, David Robins
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Publication number: 20050249906Abstract: A heat-sealable polymeric film includes a substrate layer of polymeric material having on a surface thereof a heat-sealable coating layer. The layer includes a copolyester having a degree of crystallinity of at least 5%, and is less than 8 ?m in thickness. The copolyester consists essentially of repeat units of one or more aromatic dicarboxylic acids, one or more aliphatic dicarboxylic acids, and a stoichiometric amount of a glycol component consisting of one or more glycols selected from the group consisting of aliphatic glycols and cycloaliphatic glycols.Type: ApplicationFiled: June 16, 2005Publication date: November 10, 2005Inventors: Stephen Sankey, Kenneth Evans, Mark Hodgson