Patents by Inventor Kenneth Stephenson
Kenneth Stephenson 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: 11602898Abstract: Systems and methods for generating graded lattice structures that can be used as infill for additively manufactured articles. Tailored sectioning and field-based smoothing are modified polygon, e.g., circle, packing algorithms that adjust the size of the circles based on physical field data to adapt the infill generation process to a field expected to be experienced by the article. Molecular dynamically generated lattice infill is based on force balancing a node distribution instead of a circle packing. Field data can be utilized to adjust the spacing of the node distribution according to a force balance equilibrium model that accounts for the field expected to be experienced by the article being additively manufactured. The resultant non-uniform honeycomb structures from tailored sectioning, field-based smoothing, and force-balancing robustly and efficiently address the connection issues with traditional non-uniform lattice structures.Type: GrantFiled: May 28, 2021Date of Patent: March 14, 2023Assignee: UT-Battelle, LLCInventors: Seokpum Kim, John C. Bowers, Kenneth Stephenson, Vlastimil Kunc, Ahmed Arabi Hassen, Lonnie J. Love, Gregory D. Dreifus
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Publication number: 20210370606Abstract: Systems and methods for generating graded lattice structures that can be used as infill for additively manufactured articles. Tailored sectioning and field-based smoothing are modified polygon, e.g., circle, packing algorithms that adjust the size of the circles based on physical field data to adapt the infill generation process to a field expected to be experienced by the article. Molecular dynamically generated lattice infill is based on force balancing a node distribution instead of a circle packing. Field data can be utilized to adjust the spacing of the node distribution according to a force balance equilibrium model that accounts for the field expected to be experienced by the article being additively manufactured. The resultant non-uniform honeycomb structures from tailored sectioning, field-based smoothing, and force-balancing robustly and efficiently address the connection issues with traditional non-uniform lattice structures.Type: ApplicationFiled: May 28, 2021Publication date: December 2, 2021Inventors: Seokpum Kim, John C. Bowers, Kenneth Stephenson, Vlastimil Kunc, Ahmed Arabi Hassen, Lonnie J. Love, Gregory D. Dreifus
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Patent number: 9671519Abstract: Systems, methods, and devices for determining neutron-gamma density (NGD) measurement of a subterranean formation that is accurate in both liquid- and gas-filled formations are provided. For example, a downhole tool for obtaining such an NGD measurement may include a neutron generator, neutron detector, two gamma-ray detectors, and data processing circuitry. Neutron generator may emit neutrons into a formation, causing a fast neutron cloud to form. Neutron detector may detect a count of neutrons representing the extent of the neutron cloud. Gamma-ray detectors may detect counts of inelastic gamma-rays caused by neutrons that inelastically scatter off the formation. Since the extent of the fast neutron cloud may vary depending on whether the formation is liquid- or gas-filled, data processing circuitry may determine the density of the formation based at least in part on the counts of inelastic gamma-rays normalized to the count of neutrons.Type: GrantFiled: November 9, 2011Date of Patent: June 6, 2017Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Avtandil Tkabladze, Michael Evans, Kenneth Stephenson
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Patent number: 9310491Abstract: A radiation detector may include a housing, and a scintillator body carried within the housing and including a proximal portion defining a proximal end, a distal portion defining a distal end, and a medial portion between the proximal portion and the distal portion. The scintillator body may have a constant diameter along the proximal portion, and a decreasing diameter along the distal portion from the medial portion to the distal end. The radiation detector may further include a photodetector coupled to the distal end of the scintillator body.Type: GrantFiled: September 27, 2012Date of Patent: April 12, 2016Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Kenneth Stephenson
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Patent number: 8912484Abstract: A neutron detector is provided which may include a neutron converting layer, and a scintillator layer adjacent the neutron converting layer. The neutron detector may further include a photomultiplier adjacent the scintillator layer. By way of example, the neutron detector may be used in a well logging apparatus to determine a neutron flux incident upon the neutron converting layer, and thereby determine the neutron porosity of a geological formation around a wellbore.Type: GrantFiled: March 28, 2012Date of Patent: December 16, 2014Assignee: Schlumberger Technology CorporationInventors: Roman Korkin, Wolfgang Ziegler, Kenneth Stephenson
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Publication number: 20140332678Abstract: Systems, methods, and devices for determining neutron-gamma density (NGD) measurement of a subterranean formation that is accurate in both liquid- and gas-filled formations are provided. For example, a downhole tool for obtaining such an NGD measurement may include a neutron generator, neutron detector, two gamma-ray detectors, and data processing circuitry. Neutron generator may emit neutrons into a formation, causing a fast neutron cloud to form. Neutron detector may detect a count of neutrons representing the extent of the neutron cloud. Gamma-ray detectors may detect counts of inelastic gamma-rays caused by neutrons that inelastically scatter off the formation. Since the extent of the fast neutron cloud may vary depending on whether the formation is liquid- or gas-filled, data processing circuitry may determine the density of the formation based at least in part on the counts of inelastic gamma-rays normalized to the count of neutrons.Type: ApplicationFiled: November 9, 2011Publication date: November 13, 2014Applicant: Schlumberger Technology CorporationInventors: Avto Tkabladze, Michael Evans, Kenneth Stephenson
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Publication number: 20140084150Abstract: A radiation detector may include a housing, and a scintillator body carried within the housing and including a proximal portion defining a proximal end, a distal portion defining a distal end, and a medial portion between the proximal portion and the distal portion. The scintillator body may have a constant diameter along the proximal portion, and a decreasing diameter along the distal portion from the medial portion to the distal end.Type: ApplicationFiled: September 27, 2012Publication date: March 27, 2014Inventor: Kenneth Stephenson
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Publication number: 20130299713Abstract: A neutron detecting device using a neutron-reactive material as the source of charged particles to feed conventional dynode-based electron multiplier which not gas-filled (i.e., with 3He). The detector comprises a neutron-reacting material that produces charged particles, coupled with an electron multiplier that is known for use in photomultipliers. The neutron-reacting material is deposited on a substrate at the entrance to the electron multiplier. Charged particles from the neutron-reacting material impinge on the first dynode of the electron multiplier, where, in turn, electrons are generated. The secondary electrons are collected by a second dynode, and the charge so collected is amplified in each succeeding dynode stage in a cascade effect. The charge pulse from the anode is processed by subsequent pulse processing electronics and counting electronics to provide a count rate that is proportional to the neutron flux incident on the neutron-reacting material.Type: ApplicationFiled: November 11, 2011Publication date: November 14, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Kenneth Stephenson, Christian Stoller, Olivier G. Philip
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Publication number: 20130256520Abstract: A neutron detector is provided which may include a neutron converting layer, and a scintillator layer adjacent the neutron converting layer. The neutron detector may further include a photomultiplier adjacent the scintillator layer. By way of example, the neutron detector may be used in a well logging apparatus to determine a neutron flux incident upon the neutron converting layer, and thereby determine the neutron porosity of a geological formation around a wellbore.Type: ApplicationFiled: March 28, 2012Publication date: October 3, 2013Inventors: Roman Korkin, Wolfgang Ziegler, Kenneth Stephenson
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Patent number: 7960687Abstract: Systems, methods, and devices relating to a sourceless X-ray downhole tool are provided. By way of example, such a downhole tool may include an X-ray generator, an X-ray detector, and data processing circuitry. The X-ray generator may emit some X-rays out of the downhole tool and some X-rays internally through the downhole tool. The X-ray detector may detect some of the X-rays that return to the downhole tool, as well as some of the X-rays that pass internally through the downhole tool. The data processing circuitry may gain-stabilize the X-ray detector based at least in part on the X-rays that passed internally through the downhole tool and were detected by the X-ray detector.Type: GrantFiled: September 30, 2010Date of Patent: June 14, 2011Assignee: Schlumberger Technology CorporationInventors: Matthieu Simon, Kenneth Stephenson
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Patent number: 7669468Abstract: The invention relates to methods and apparatus for determining downhole mud flow rates and other downhole parameters. A method for determining a downhole parameter includes operating a pulsed neutron generator (6), pulsing the pulsed neutron generator (6) off, detecting a substantially unactivated drilling fluid slug at a known distance (d) from the pulsed neutron generator (6), and determining a time-of-flight (t) for the unactivated drilling fluid slug to travel from the pulsed neutron generator (6) to a detection point.Type: GrantFiled: November 21, 2003Date of Patent: March 2, 2010Assignee: Schlumberger Technology CorporationInventors: Peter Wraight, Roger Griffiths, Kenneth Stephenson
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Publication number: 20100039661Abstract: The subject application is directed to a system and method for remote facsimile message retransmission. At least one document and identification data corresponding to a user are received for association with a facsimile transmission. Destination address data is then received, and facsimile transmission is commenced. Whether the transmission is successful is monitored, and a notification message is generated to the user, which message includes information relative to the monitored transmission of the document. Login data associated with the document is then received from an associated thin client interface. Update data, corresponding to an output of the monitoring that indicates a failure of a facsimile transmission of the at least one document in accordance with received address data, is received via the thin client interface. A facsimile retransmission, electronic mail transmission, or storage operation of the document is then commenced in accordance with the update data.Type: ApplicationFiled: August 14, 2008Publication date: February 18, 2010Inventors: Kenneth Stephenson, Louis Ormond
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Publication number: 20100033753Abstract: The subject application is directed to a system and method for selective redaction of scanned documents. A tangible document is scanned so as to generate electronic image data, and an image of the tangible document is generated on an associated touch screen display in accordance with the electronic image data. Tactile input is received on a first area of the touch screen corresponding to a first perimeter portion of a selected redaction boundary area and on a second area of the touch screen corresponding to a second perimeter portion of the selected redaction boundary area. Image data is then obfuscated corresponding to the selected redaction boundary area. The touch screen display is updated such that image data is hidden in the selected redaction boundary area, and image data inclusive of obfuscated image data in the selected redaction boundary area is stored in an associated memory.Type: ApplicationFiled: August 6, 2008Publication date: February 11, 2010Inventor: Kenneth STEPHENSON
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Patent number: 7366615Abstract: Methods and apparatus are provided for determining the content of a first element in a formation which cannot otherwise be determined via a capture spectrum measurement. The methods and apparatus utilize the inelastic spectrum measurement of the first element and the inelastic and capture spectrum measurements of at least a second element. The methods and apparatus have particular application to determining the carbon content of a formation although they are not limited thereto. The inelastic and capture spectrum measurements of silicon are useful in making such determinations, although other chemical elements may be used as the second element.Type: GrantFiled: July 31, 2006Date of Patent: April 29, 2008Assignee: Schlumber Technology CorporationInventors: Susan Herron, James Grau, Bradley Roscoe, Michael Herron, Kenneth Stephenson
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Publication number: 20080023629Abstract: Methods and apparatus are provided for determining the content of a first element in a formation which cannot otherwise be determined via a capture spectrum measurement. The methods and apparatus utilize the inelastic spectrum measurement of the first element and the inelastic and capture spectrum measurements of at least a second element. The methods and apparatus have particular application to determining the carbon content of a formation although they are not limited thereto. The inelastic and capture spectrum measurements of silicon are useful in making such determinations, although other chemical elements may be used as the second element.Type: ApplicationFiled: July 31, 2006Publication date: January 31, 2008Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Susan Herron, James Grau, Bradley Roscoe, Michael Herron, Kenneth Stephenson
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Publication number: 20060074840Abstract: A system and method to track and display the status of an electronic document submitted through a web-portal to a multifunctional peripheral device. The multifunctional peripheral device receives an electronic document file upon which it is to perform a service and logs the receipt in a central status database. During the processing of the electronic document file, the multifunctional peripheral device continually updates the status information corresponding to that file in the central status database. Through a web-portal, a user selects from a list of recently submitted document files one file for which status information is desired. The multifunctional peripheral device then accesses the central status database, retrieves the file, and displays, via the web-portal, detailed document and status information corresponding to the selected document file.Type: ApplicationFiled: September 24, 2004Publication date: April 6, 2006Inventors: Fabio Gava, Kenneth Stephenson, Mustafa Seifi, Marianne Kodimer, Harpreet Singh
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Publication number: 20060020561Abstract: The present invention is directed to a method and system for accessing data services by users which shows the user the cost of such services based on the options, properties, or services selected. A user accesses a multifunctional peripheral device in a non-office environment, such an airport lounge or hotel business center. The user receives information regarding the various services available and the available payment options. The user selects a document for processing, the desired services, and the properties or options associated with such services. The cost of the services with the selected options or properties is calculated and presented to the user. If the user changes the services to be performed or the options or properties associated therewith, the cost for the services is dynamically updated. Once the user has selected the desired services and properties or options, the user then selects the appropriate payment option. Upon the user accepting the charges, the service is performed.Type: ApplicationFiled: March 25, 2005Publication date: January 26, 2006Inventors: Marianne Kodimer, Harpreet Singh, Mustafa Seifi, Kenneth Stephenson
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Publication number: 20050038668Abstract: This invention is directed to a mobile document processing system and method. More particularly, this invention is directed to a mobile document processing system and method wherein a user requests a selected document processing operation for a document and the fee for the operation is calculated on a per page basis.Type: ApplicationFiled: September 24, 2004Publication date: February 17, 2005Inventors: Harpreet Singh, Marianne Kodimer, Mustafa Seifi, Kenneth Stephenson, Louis Ormond
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Publication number: 20050033530Abstract: A method for determining the bubble point pressure and the true flow rate of a fluid in a flow line of a flowing well is provided, wherein the method includes modifying fluid pressure in a predetermined region of the flow line, generating pressure data responsive to the flow line, obtaining apparent flow rate data responsive to the pressure data, examining the apparent flow rate data to identify a discontinuity in the apparent flow rate data and generating true flow rate data responsive to the discontinuity.Type: ApplicationFiled: August 5, 2004Publication date: February 10, 2005Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Kenneth Stephenson, Lalitha Venkataramanan
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Publication number: 20040193751Abstract: A system and method to allow users in a non-office environment to access and use data services, such as scanning, printing, and distribution of documents and data and to charge the users for such services. Multifunctional peripheral devices are provided to service location providers for use by mobile users. A multifunctional peripheral device provider sells or leases the multifunctional peripheral device, related hardware and software, parts, and supplies to service location providers. The service location provider then provides access to the multifunction peripheral device and related services to mobile users. The user is then charged for the services used. The fees are paid to the multifunctional peripheral device provider. At least a portion of these fees are paid to any dealers involved in the sale or lease of the multifunctional peripheral device and to the service location providers.Type: ApplicationFiled: April 2, 2004Publication date: September 30, 2004Inventors: Harpreet Singh, Marianne Kodimer, Mustafa Seifi, Kenneth Stephenson