Patents by Inventor Michael C. Clark
Michael C. Clark 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: 20240151709Abstract: The present application relates to compositions and methods for tracing cell networks, e.g., for investigation of cell interactions in the CNS with single cell resolution.Type: ApplicationFiled: March 1, 2022Publication date: May 9, 2024Inventors: Francisco J. Quintana, Michael A. Wheeler, Iain C. Clark
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Publication number: 20220047174Abstract: A wearable device for monitoring physiological and biomechanical parameters of a user includes a primary electronics body having a processor, a first temperature sensor, and a second temperature sensor. The first temperature sensor is in electrical communication with the processor and configured to measure a temperature of skin of the user. The second temperature sensor is in electrical communication with the processor and is configured to measure a temperature of ambient air outside the wearable device. The processor is configured to receive the measured temperatures from the first temperature sensor and the second temperature sensor, and to determine at least one metric indicative of the core temperature of the user without an invasive measurement of the body of the user.Type: ApplicationFiled: August 10, 2021Publication date: February 17, 2022Inventors: Evan V. Davies, Michael C. Clark, Michael B. Johnson
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Patent number: 9809764Abstract: A process for producing high yields of higher quality (API Group II, Group III?) lubricating oil basestock fractions which allows the production of two or more types of high quality lubes in continuous mode (no blocked operation mode) without transition times and feed or intermediate product tankage segregation. Two consecutive hydroprocessing steps are used: the first step processes a wide cut feed at a severity needed to match heavy oil lube properties. The second step hydroprocesses a light oil after fractionation of the liquid product from the first step at a severity higher than for the heavy oil fraction. The two hydroprocessing steps will normally be carried out in separate reactors but they may be combined in a single reactor which allows for the two fractions to be processed with different degrees of severity.Type: GrantFiled: March 10, 2016Date of Patent: November 7, 2017Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Benjamin S. Umansky, Teck-Mui Hoo, Richard A. Demmin, Fengrong Chen, James W. Gleeson, Suisheng M. Dou, Tomas R. Melli, Michael C. Clark
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Patent number: 9795949Abstract: The present invention provides an improved catalyst and a method for its manufacture. The catalyst comprises an acidic, porous crystalline material and has a Proton Density Index of greater than about 1.0, for example from greater than 1.0 to about 2.0, e.g. from about 1.01 to about 1.85. This catalyst may be used to effect conversion in chemical reactions, and is particularly useful in a process for selectively producing a monoalkylated aromatic compound comprising the step of contacting an alkylatable aromatic compound with an alkylating agent under at least partial liquid phase conditions. The acidic, porous crystalline material of the catalyst may comprise an acidic, crystalline molecular sieve having the structure of zeolite Beta, an MWW structure type material, e.g. MCM-22, MCM-36, MCM-49 MCM-56, or a mixture thereof.Type: GrantFiled: November 20, 2015Date of Patent: October 24, 2017Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Teng Xu, Matthew J. Vincent
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Patent number: 9476831Abstract: A process for producing an alkylated aromatic product in a reactor by reacting an alkylatable aromatic compound feedstock with another feedstock comprising alkene component and alkane component in a reaction zone containing an alkylation catalyst. The reaction zone is operated in predominantly liquid phase without inter-zone alkane removal. The polyalkylated aromatic compounds can be separated as feed stream for transalkylation reaction in a transalkylation reaction zone.Type: GrantFiled: March 7, 2011Date of Patent: October 25, 2016Assignee: BADGER LICENSING LLCInventors: Michael C. Clark, Brian Maerz
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Publication number: 20160298038Abstract: A process for producing high yields of higher quality (API Group II, Group III?) lubricating oil basestock fractions which allows the production of two or more types of high quality lubes in continuous mode (no blocked operation mode) without transition times and feed or intermediate product tankage segregation. Two consecutive hydroprocessing steps are used: the first step processes a wide cut feed at a severity needed to match heavy oil lube properties. The second step hydroprocesses a light oil after fractionation of the liquid product from the first step at a severity higher than for the heavy oil fraction. The two hydroprocessing steps will normally be carried out in separate reactors but they may be combined in a single reactor which allows for the two fractions to be processed with different degrees of severity.Type: ApplicationFiled: March 10, 2016Publication date: October 13, 2016Inventors: Benjamin S. Umansky, Teck-Mui Hoo, Richard A. Demmin, Fengrong Chen, James W. Gleeson, Suisheng M. Dou, Tomas R. Melli, Michael C. Clark
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Publication number: 20160074850Abstract: The present invention provides an improved catalyst and a method for its manufacture. The catalyst comprises an acidic, porous crystalline material and has a Proton Density Index of greater than about 1.0, for example from greater than 1.0 to about 2.0, e.g. from about 1.01 to about 1.85. This catalyst may be used to effect conversion in chemical reactions, and is particularly useful in a process for selectively producing a monoalkylated aromatic compound comprising the step of contacting an alkylatable aromatic compound with an alkylating agent under at least partial liquid phase conditions. The acidic, porous crystalline material of the catalyst may comprise an acidic, crystalline molecular sieve having the structure of zeolite Beta, an MWW structure type material, e.g. MCM-22, MCM-36, MCM-49 MCM-56, or a mixture thereof.Type: ApplicationFiled: November 20, 2015Publication date: March 17, 2016Inventors: Michael C. Clark, Teng Xu, Matthew J. Vincent
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Patent number: 8669407Abstract: Described is an apparatus for, and a method of, recovering linear butenes from a mixed feed comprising providing a first mixed feed comprising linear butenes and isobutene; contacting the first mixed feed with an oligomerization catalyst such as an MWW family zeolite in a first oligomerization reactor to produce a second mixed feed comprising the linear butenes, C8 olefins and higher oligomers, and a reduced amount of isobutene relative to the first mixed feed; and separating the second mixed feed to produce a first effluent of first purified linear butenes, and a second effluent of C8 olefins and higher oligomers. The oligomerization reactor may be a converted isobutene-to-methyl-t-butylether reactor.Type: GrantFiled: August 28, 2008Date of Patent: March 11, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Katherine Sullivan Phillion, Garland B. Brignac, Michael C. Clark, Glenn J. Moloney, Donald J. Norris, Benjamin S. Umansky
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Patent number: 8524967Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material which comprises MCM-56 and having a ratio of surface area over volume ratio greater than about 79 cm?1, (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).Type: GrantFiled: November 14, 2012Date of Patent: September 3, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Yun-Feng Chang
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Publication number: 20130072734Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material which comprises MCM-56 and having a ratio of surface area over surface volume ratio greater than about 79 cm?1; (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).Type: ApplicationFiled: November 14, 2012Publication date: March 21, 2013Applicant: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Yun-Feng Chang
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Patent number: 8395006Abstract: A process for the alkylation of a benzene-containing refinery stream such as reformate with light refinery olefins which is capable of achieving high benzene conversion levels operates in a fixed bed of an MWW zeolite catalyst, preferably MCM-22, in single pass mode in the liquid phase at a relatively low to moderate temperatures with pressure maintained at a value adequate to ensure subcritical operation. High levels of benzene conversion with conversions of at least 90% and higher, e.g. 92% or 95% or even higher are achievable. A high octane product is produced, comprising mono-, di- and tri-alkylbenzenes with lesser levels of the tetra-substituted products. By operating with staged olefin injection, the end point of the alkylation product can be maintained at a low value while, at the same time, achieving high levels of benzene and olefin conversion.Type: GrantFiled: March 9, 2010Date of Patent: March 12, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael C. Clark, Benjamin S. Umansky, Elizabeth A. Nye, Mark J. Reichensperger, William C. Lewis
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Patent number: 8357830Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, comprising providing upstream of said alkylation reaction zone a reactive guard bed having a catalyst of *BEA, MWW, or FAU framework structure and an alkylation feed wherein at least a portion of any reactive impurities are removed from the alkylation feed to form an effluent; and providing the effluent and a first catalytic particulate material which comprises MCM-56 and an alumina binder sized 50-60 mesh and having a ratio of surface area over volume ratio in the range of 241 to 2867 cm-1 and optionally additional alkylating agent to said alkylation reaction zone; and contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound.Type: GrantFiled: June 29, 2012Date of Patent: January 22, 2013Assignee: Exxonmobil Chemical Patents Inc.Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Yun-Feng Chang
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Patent number: 8334419Abstract: The present invention provides an improved process for conversion of feedstock comprising an alkylatable aromatic compound and an alkylating agent to desired alkylaromatic conversion product under at least partial liquid phase conversion conditions in the presence of specific catalyst comprising a porous crystalline material, e.g., a crystalline aluminosilicate, and binder in the ratio of crystal/binder of from about 20/80 to about 60/40. The porous crystalline material of the catalyst may comprise a crystalline molecular sieve having the structure of Beta, an MCM-22 family material, e.g., MCM-49, or a mixture thereof.Type: GrantFiled: March 31, 2011Date of Patent: December 18, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Matthew J. Vincent
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Publication number: 20120283497Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material which comprises MCM-56 and having a ratio of surface area over surface volume ratio greater than about 79 cm?1; (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).Type: ApplicationFiled: June 29, 2012Publication date: November 8, 2012Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Yun-Feng Chang
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Patent number: 8258360Abstract: A process for producing a monoalkylated aromatic product in a reactor by reacting a mixed phase mixture of an alkylatable aromatic compound feedstock with another feedstock comprising alkene component in a reaction zone containing an alkylation catalyst. An effluent comprising the monoalkylated aromatic product and polyalkylated aromatic compounds exits from the reaction zone in liquid phase. The polyalkylated aromatic compounds can be separated as feed stream for transalkylation reaction in a transalkylation reaction zone.Type: GrantFiled: March 1, 2006Date of Patent: September 4, 2012Assignees: ExxonMobil Chemical Patents Inc., Stone & Webster, Inc.Inventors: Michael C. Clark, Vijay Nanda, Brian Maerz
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Patent number: 8247629Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material having a ratio of surface area over volume ratio greater than about 79 cm?1, (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).Type: GrantFiled: April 17, 2007Date of Patent: August 21, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Yun-Feng Chang
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Patent number: 8227654Abstract: In a process for reducing the amount of benzene produced in a startup procedure for purification of an aromatic feedstream, the improvement comprising a start-up procedure including contacting said catalyst with said feedstream at elevated LHSV for a period of time sufficient to reduce benzene and/or toluene levels to a predetermined level, and proceeding under normal operational conditions.Type: GrantFiled: August 30, 2010Date of Patent: July 24, 2012Assignee: Exxonmobil Chemical Patents Inc.Inventors: Timothy F. Kinn, Michael C. Clark
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Patent number: 8222468Abstract: The present invention provides a process for conversion of feedstock comprising organic compounds to desirable conversion product at organic compound conversion conditions in the presence of catalyst comprising an acidic, porous crystalline material and having a Proton Density Index of greater than 1.0, for example, from greater than 1.0 to about 2.0, e.g. from about 1.01 to about 1.85. The acidic, porous crystalline material of the catalyst may comprise a porous, crystalline material or molecular sieve having the structure of zeolite Beta, an MWW structure type material, e.g. MCM-22, MCM-36, MCM-49, MCM-56, or a mixture thereof.Type: GrantFiled: May 8, 2006Date of Patent: July 17, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Teng Xu, Matthew J. Vincent
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Patent number: 8217214Abstract: Disclosed are ethylbenzene processes in which a series-arranged or combined vapor phase alkylation/transalkylation reaction zone is retrofitted to have a vapor phase alkylation reactor and a liquid phase transalkylation reactor, and in which a parallel-arranged vapor phase alkylation reactor and vapor phase transalkylation reactor is retrofitted to have a vapor phase alkylation reactor and liquid phase transalkylation reactor, wherein the xylenes content of the ethylbenzene product is less than 700 wppm.Type: GrantFiled: March 31, 2011Date of Patent: July 10, 2012Assignees: ExxonMobil Chemical Patents Inc., Stone & Weber, Inc.Inventors: Michael C. Clark, Vijay Nanda, Carlos N. Lopez, Brian Maerz, Maruti Bhandarkar
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Patent number: 8110715Abstract: The present disclosure provides a process for selectively producing a desired monoalkylated aromatic compound comprising the step of contacting in a reaction zone an alkylatable aromatic compound with an alkylating agent in the presence of catalyst comprising a porous crystalline material under at least partial liquid phase conditions, said catalyst manufactured from extrudate to comprise catalytic particulate material of from about 125 microns to about 790 microns in size, having an Effectiveness Factor increased from about 25% to about 750% from that of the original extrudate, and having an external surface area to volume ratio of greater than about 79 cm?1.Type: GrantFiled: March 10, 2011Date of Patent: February 7, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Matthew J. Vincent