Patents by Inventor John D. Stewart
John D. Stewart 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: 20240121280Abstract: Systems, methods, and computer-readable storage devices are disclosed for simulated choral audio chatter in communication systems. One method including: receiving audio data from each of a plurality of users participating in a first group of a plurality of groups for an event using a communication system; generating first simulated choral audio chatter based on the audio data received from each of the plurality of users in the first group; and providing the generated first simulated choral audio data to at least one user of a plurality of users of the event.Type: ApplicationFiled: October 7, 2022Publication date: April 11, 2024Applicant: Microsoft Technology Licensing, LLCInventors: John C. TANG, William Arthur Stewart BUXTON, Edward Sean Lloyd RINTEL, Amos MILLER, Andrew D. WILSON, Sasa JUNUZOVIC
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Patent number: 11933789Abstract: A device includes: a first portion configured to be grasped by the hand of the user, and a second portion defining a reservoir containing a control material, wherein the control material contains a target analyte in a known or predetermined concentration. A method of verifying the accuracy of an analyte monitoring device includes receiving a fluid sample, identifying the fluid sample as a control solution, and analyzing the fluid sample.Type: GrantFiled: May 5, 2021Date of Patent: March 19, 2024Assignee: Intuity Medical, Inc.Inventors: Kelley J. Lipman, Michael F. Tomasco, Peter Uy-Vu Ly, Jennifer Y. Blomo, Paul D. Reynolds, John F. Larkin, Robin S. Gaffney, Kimberly J. Tansey, Christopher L. Stewart, Raul Escutia, Robert W. Bowers
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Patent number: 11925902Abstract: A thermally reflective membrane apparatus comprises a housing structure, and a thermally reflective membrane contained within the housing structure. The thermally reflective membrane comprises a semipermeable structure, and a porous, thermally reflective structure physically contacting the semipermeable structure. The porous, thermally reflective structure comprises discrete thermally reflective particles, and a binder material coupling the discrete thermally reflective particles to one another and the semipermeable structure. A fluid treatment system and method of treating a fluid are also described.Type: GrantFiled: September 1, 2020Date of Patent: March 12, 2024Assignee: Battelle Energy Alliance, LLCInventors: John R. Klaehn, Christopher J. Orme, Aaron D. Wilson, Birendra Adhikari, Frederick F. Stewart, Seth W. Snyder
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Patent number: 10611863Abstract: A process is described for introducing a catalyst into a polymerization zone by detecting one or a combination of (i) a change in a concentration of the catalyst in a catalyst feed stream upstream of the polymerization zone, (ii) a change in a concentration of monomer in the polymerization zone, and (iii) a change in a polymer production rate of the polymerization zone, adjusting a first catalyst flow rate of the catalyst in the catalyst feed stream to a second catalyst flow rate based on the one or a combination of (i), (ii), and (iii), and introducing the catalyst into the polymerization zone downstream of a location in the catalyst feed stream where the step of adjusting is performed. A catalyst injection system for carrying out such a process is also provided.Type: GrantFiled: December 6, 2018Date of Patent: April 7, 2020Assignee: Chevron Phillips Chemical Company LPInventors: Anurag Gupta, Anne M Balinsky, Robert R McElvain, John D Stewart
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Publication number: 20190106515Abstract: A process is described for introducing a catalyst into a polymerization zone by detecting one or a combination of (i) a change in a concentration of the catalyst in a catalyst feed stream upstream of the polymerization zone, (ii) a change in a concentration of monomer in the polymerization zone, and (iii) a change in a polymer production rate of the polymerization zone, adjusting a first catalyst flow rate of the catalyst in the catalyst feed stream to a second catalyst flow rate based on the one or a combination of (i), (ii), and (iii), and introducing the catalyst into the polymerization zone downstream of a location in the catalyst feed stream where the step of adjusting is performed. A catalyst injection system for carrying out such a process is also provided.Type: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Inventors: Anurag GUPTA, Anne M. BALINSKY, Robert R. MCELVAIN, John D. STEWART
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Patent number: 10179826Abstract: A process is described for introducing a catalyst into a polymerization zone by detecting one or a combination of (i) a change in a concentration of the catalyst in a catalyst feed stream upstream of the polymerization zone, (ii) a change in a concentration of monomer in the polymerization zone, and (iii) a change in a polymer production rate of the polymerization zone, adjusting a first catalyst flow rate of the catalyst in the catalyst feed stream to a second catalyst flow rate based on the one or a combination of (i), (ii), and (iii), and introducing the catalyst into the polymerization zone downstream of a location in the catalyst feed stream where the step of adjusting is performed. A catalyst injection system for carrying out such a process is also provided.Type: GrantFiled: May 5, 2017Date of Patent: January 15, 2019Assignee: Chevron Phillips Chemical Company LPInventors: Anurag Gupta, Anne M Balinsky, Robert R McElvain, John D Stewart
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Publication number: 20180319909Abstract: A process is described for introducing a catalyst into a polymerization zone by detecting one or a combination of (i) a change in a concentration of the catalyst in a catalyst feed stream upstream of the polymerization zone, (ii) a change in a concentration of monomer in the polymerization zone, and (iii) a change in a polymer production rate of the polymerization zone, adjusting a first catalyst flow rate of the catalyst in the catalyst feed stream to a second catalyst flow rate based on the one or a combination of (i), (ii), and (iii), and introducing the catalyst into the polymerization zone downstream of a location in the catalyst feed stream where the step of adjusting is performed. A catalyst injection system for carrying out such a process is also provided.Type: ApplicationFiled: May 5, 2017Publication date: November 8, 2018Inventors: Anurag GUPTA, Anne M BALINSKY, Robert R MCELVAIN, John D STEWART
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Patent number: 9340627Abstract: A reactor system containing one or more loop reactors for olefin polymerization is provided. The loop reactors include vertical sections, elbow sections, and/or horizontal sections connected into one or more loop reaction zones to polymerize an olefin monomer in the presence of a liquid diluent into a slurry comprising particles of a polyolefin polymer. The reactor system footprint is reduced to increase production efficiency and save cost, while maintaining a high processing capacity. In one embodiment a horizontal length (LH) of at least one horizontal section is greatly reduced with maintained processing capacity. In another embodiment, at least one elbow section of the reactor system is configured to maintain a Dean number (Dn) of the slurry flowing therein to be higher than 3,000,000.Type: GrantFiled: May 21, 2014Date of Patent: May 17, 2016Inventors: Scott E. Kufeld, Joel A. Mutchler, Ralph W. Romig, John D Stewart, Catherine M Gill, Bruce E. Kreischer, John D. Hottovy
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Patent number: 9303099Abstract: Methods for controlling properties of an olefin polymer using an alcohol compound are disclosed. The MI and the HLMI of the polymer can be decreased, and the Mw and the Mz of the polymer can be increased, via the addition of the alcohol compound.Type: GrantFiled: January 22, 2015Date of Patent: April 5, 2016Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, Tony R. Crain, Albert P. Masino, Ted H. Cymbaluk, John D. Stewart
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Publication number: 20150286397Abstract: Techniques for real-time observation assessment are provided. The techniques, which are designed for educators, take advantage of handheld computers, desktop/laptop computers and Internet access in order to reduce the paperwork associated with conventional educational assessments. An array of instructional assessment applications are designed to run on handheld computers. The instructional assessment applications may be based on existing and widely used paper methodologies. A common Web-based platform for assessment application distribution, selection, download, data management and reporting is also provided. Users can then periodically synchronize instructional data (assessments, diagnostic results, notes and/or schedules) to the Web site. At the Web site, browser-based reports and analysis can be viewed, administered and shared via electronic mail.Type: ApplicationFiled: February 23, 2015Publication date: October 8, 2015Inventors: Lawrence Jason Berger, Gregory M. Gunn, John D. Stewart, Kenneth M. Gunn, Elizabeth Lynn, Nicole M. Adams, Anouk Markovits, Aaron Boyd
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Publication number: 20150133612Abstract: Methods for controlling properties of an olefin polymer using an alcohol compound are disclosed. The MI and the HLMI of the polymer can be decreased, and the Mw and the Mz of the polymer can be increased, via the addition of the alcohol compound.Type: ApplicationFiled: January 22, 2015Publication date: May 14, 2015Inventors: Qing Yang, Max P. McDaniel, Tony R. Crain, Albert P. Masino, Ted H. Cymbaluk, John D. Stewart
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Patent number: 8997004Abstract: Techniques for real-time observation assessment are provided. The techniques, which are designed for educators, take advantage of handheld computers, desktop/laptop computers and Internet access in order to reduce the paperwork associated with conventional educational assessments. An array of instructional assessment applications are designed to run on handheld computers. The instructional assessment applications may be based on existing and widely used paper methodologies. A common Web-based platform for assessment application distribution, selection, download, data management and reporting is also provided. Users can then periodically synchronize instructional data (assessments, diagnostic results, notes and/or schedules) to the Web site. At the Web site, browser-based reports and analysis can be viewed, administered and shared via electronic mail.Type: GrantFiled: January 16, 2014Date of Patent: March 31, 2015Assignee: Amplify Education, Inc.Inventors: Lawrence Jason Berger, Gregory M. Gunn, John D. Stewart, Kenneth M. Gunn, Elizabeth Lynn, Nicole M. Adams, Anouk Markovits, Aaron Boyd
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Patent number: 8957168Abstract: Methods for controlling properties of an olefin polymer using an alcohol compound are disclosed. The MI and the HLMI of the polymer can be decreased, and the Mw and the Mz of the polymer can be increased, via the addition of the alcohol compound.Type: GrantFiled: August 9, 2013Date of Patent: February 17, 2015Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, Tony R. Crain, Albert P. Masino, Ted H. Cymbaluk, John D. Stewart
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Publication number: 20150045521Abstract: Methods for controlling properties of an olefin polymer using an alcohol compound are disclosed. The MI and the HLMI of the polymer can be decreased, and the Mw and the Mz of the polymer can be increased, via the addition of the alcohol compound.Type: ApplicationFiled: August 9, 2013Publication date: February 12, 2015Applicant: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, Tony R. Crain, Albert P. Masino, Ted H. Cymbaluk, John D. Stewart
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Patent number: 8932527Abstract: Loop reactors for olefin polymerization and processes utilizing such loop reactors are described herein. In one or more embodiments, the loop reactor generally includes a plurality of vertical sections; a plurality of elbow sections connecting the vertical sections to either a horizontal section having a horizontal length (LH) or another elbow section, at least one elbow section having an internal diameter (d), a radius (Rc) of an inner curvature and a chord length (W) and wherein the horizontal length (LH) is from 0 feet to 3 feet, the chord length (W) is 250 inches or less and a ratio (Rc/d) of the radius (Rc) of the inner curvature to the internal diameter (d) of the at least one elbow section is maintained from 2 to 4; and at least one loop reaction zone configured to polymerize an olefin monomer in the presence of a liquid diluent into a slurry comprising particles of a polyolefin polymer.Type: GrantFiled: August 17, 2014Date of Patent: January 13, 2015Assignee: Chevron Phillips Chemical Co.Inventors: Scott E. Kufeld, Joel A. Mutchler, Ralph W. Romig, John D Stewart, Catherine M Gill, Bruce E. Kreischer, John D. Hottovy
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Publication number: 20140134592Abstract: Techniques for real-time observation assessment are provided. The techniques, which are designed for educators, take advantage of handheld computers, desktop/laptop computers and Internet access in order to reduce the paperwork associated with conventional educational assessments. An array of instructional assessment applications are designed to run on handheld computers. The instructional assessment applications may be based on existing and widely used paper methodologies. A common Web-based platform for assessment application distribution, selection, download, data management and reporting is also provided. Users can then periodically synchronize instructional data (assessments, diagnostic results, notes and/or schedules) to the Web site. At the Web site, browser-based reports and analysis can be viewed, administered and shared via electronic mail.Type: ApplicationFiled: January 16, 2014Publication date: May 15, 2014Applicant: Amplify Education, Inc.Inventors: Lawrence Jason Berger, Gregory M. Gunn, John D. Stewart, Kenneth M. Gunn, Elizabeth Lynn, Nicole M. Adams, Anouk Markovits, Aaron Boyd
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Patent number: 8667400Abstract: Techniques for real-time observation assessment are provided. The techniques, which are designed for educators, take advantage of handheld computers, desktop/laptop computers and Internet access in order to reduce the paperwork associated with conventional educational assessments. An array of instructional assessment applications are designed to run on handheld computers. The instructional assessment applications may be based on existing and widely used paper methodologies. A common Web-based platform for assessment application distribution, selection, download, data management and reporting is also provided. Users can then periodically synchronize instructional data (assessments, diagnostic results, notes and/or schedules) to the Web site. At the Web site, browser-based reports and analysis can be viewed, administered and shared via electronic mail.Type: GrantFiled: June 22, 2009Date of Patent: March 4, 2014Assignee: Amplify Education, Inc.Inventors: Lawrence Jason Berger, Gregory M. Gunn, John D. Stewart, Kenneth M. Gunn, Elizabeth Lynn, Nicole M. Adams, Anouk Markovits, Aaron Boyd
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Patent number: 8487053Abstract: Methods for removing polymer skins or build-up from reactor walls in polymerization reactor systems containing a loop slurry reactor are disclosed. Such methods can employ removing some or all of the comonomer from the reactor system in combination with increasing the polymerization temperature of the loop slurry reactor.Type: GrantFiled: November 30, 2011Date of Patent: July 16, 2013Assignee: Chevron Phillips Chemical Company LPInventors: George R. Rajaendran, Max P. McDaniel, Gregory G. Hendrickson, John D. Stewart, John D. Hottovy, Ted H. Cymbaluk, Susannah Lane, Richard A. Hernandez, Elliott W. Johnson, Qing Yang, William L. Valerioti, Eric Schwerdtfeger, Albert P. Masino
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Publication number: 20130137836Abstract: Methods for removing polymer skins or build-up from reactor walls in polymerization reactor systems containing a loop slurry reactor are disclosed. Such methods can employ removing some or all of the comonomer from the reactor system in combination with increasing the polymerization temperature of the loop slurry reactor.Type: ApplicationFiled: November 30, 2011Publication date: May 30, 2013Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: George R. Rajaendran, Max P. McDaniel, Gregory G. Hendrickson, John D. Stewart, John D. Hottovy, Ted H. Cymbaluk, Suzannah Lane, Richard A. Hernandez, Elliott W. Johnson, Qing Yang, William L. Valerioti, Eric Schwerdtfeger, Albert P. Masino
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Publication number: 20090263778Abstract: Techniques for real-time observation assessment are provided. The techniques, which are designed for educators, take advantage of handheld computers, desktop/laptop computers and Internet access in order to reduce the paperwork associated with conventional educational assessments. An array of instructional assessment applications are designed to run on handheld computers. The instructional assessment applications may be based on existing and widely used paper methodologies. A common Web-based platform for assessment application distribution, selection, download, data management and reporting is also provided. Users can then periodically synchronize instructional data (assessments, diagnostic results, notes and/or schedules) to the Web site. At the Web site, browser-based reports and analysis can be viewed, administered and shared via electronic mail.Type: ApplicationFiled: June 22, 2009Publication date: October 22, 2009Applicant: WIRELESS GENERATION, INC.Inventors: Lawrence J. Berger, Gregory M. Gunn, John D. Stewart, Kenneth M. Gunn, Elizabeth Lynn, Nicole M. Adams, Anouk Markovits, Aaron Boyd