Patents by Inventor Joshua W. ALLEN
Joshua W. ALLEN 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: 20240125055Abstract: A bonded concrete walkway segment includes a walkway body formed of a concrete material, a duct extending through the walkway body from a first end of the walkway body to an opposite second end of the walkway body, a tendon including a strand extending through the duct, and a tendon grout filled within the duct around the strand. The tendon grout is cured to fix the strand in the duct.Type: ApplicationFiled: October 18, 2022Publication date: April 18, 2024Applicant: Dutchland, Inc.Inventors: Joshua C. Allen, Kenneth W. Sullivan
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Publication number: 20210040014Abstract: The present disclosure relates to processes for the alkylation of isoparaffins. A process may include introducing, in a multistage reactor, a solid acid catalyst to an isoparaffin feed and an olefin feed at a pressure of about 300 psig to about 1500 psig to form a alkylation product mixture. A process may also include solid acid catalyst that includes a crystalline microporous material of the MWW framework type. In yet other embodiments, the present disclosure provides for processes for the alkylation of an isoparaffin. A process may include introducing, in a multistage reactor, a solid acid catalyst to an isoparaffin feed and an olefin feed at a temperature of from about 100° C. to about 200° C. to form an alkylation product mixture. A process may further include a solid acid catalyst that includes a crystalline microporous material of the MWW framework type.Type: ApplicationFiled: July 14, 2020Publication date: February 11, 2021Inventors: Vinit Choudhary, Doron Levin, Matthew S. Mettler, Joshua W. Allen
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Publication number: 20210040013Abstract: The present disclosure is related to processes for the alkylation of an isoparaffin. The process may include introducing, in a multistage reactor, a solid acid catalyst including a zeolite to an isoparaffin feed and an olefin feed to form an alkylation product mixture including C5+ olefins. The processes may further include separating at least a portion of the C5+ olefins from the alkylation product mixture to form an oligomer light stream. The present disclosure further relates to multistage reactors for the alkylation of an isoparaffin with an olefin. The multistage reactors may include a plurality of stages, and a plurality of separation systems. The multistage reactors may also include an outlet space coupling each stage to a separation system and an inlet space coupling a separation system to a subsequent stage.Type: ApplicationFiled: July 14, 2020Publication date: February 11, 2021Inventors: Doron Levin, Vinit Choudhary, Matthew S. Mettler, Joshua W. Allen
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Patent number: 10836965Abstract: Methods of transforming a hydrocarbon feedstream into an aromatization product in a multi-stage reverse flow reactor (RFR) apparatus are disclosed. The methods include at least two reaction stages in series, at least one being a pyrolysis stage and at least another being a catalytic aromatization stage. Using a highly saturated hydrocarbon feedstream the pyrolysis stage focuses on desaturation, while the catalytic aromatization stage focuses on aromatization. The catalytic aromatization stage contains a aromatization catalyst that can include substantially no magnesium, scandium, yttrium, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, rhenium, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, silver, gold, gallium, indium, tin, lanthanides, or actinides, or, in some cases, substantially no added active metals at all.Type: GrantFiled: April 12, 2019Date of Patent: November 17, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Mayank Shekhar, James R. Lattner, Federico Barrai, Brian M. Weiss, Dhaval A. Bhandari, Joshua W. Allen
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Patent number: 10577243Abstract: A reforming catalyst with improved surface area is provided by using high surface area alumina doped with a stabilizer metal as a catalyst support. The surface area of the catalyst can be higher than a typical reforming catalyst, and the surface area can also be maintained under high temperature operation. This can allow use of the catalyst for reforming in a higher temperature environment while maintaining a higher surface area, which can allow for improved dispersion and/or activity of an active metal such as rhodium on the catalyst support. The catalyst can be suitable for production of syngas from natural gas or other hydrocarbon-containing feeds.Type: GrantFiled: November 4, 2016Date of Patent: March 3, 2020Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Matthew S. Ide, John F. Brody, Jianxin Wu, Joshua W. Allen, Frank Hershkowitz, Arsam Behkish, Anastasios I. Skoulidas
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Publication number: 20190322949Abstract: Methods of transforming a hydrocarbon feedstream into an aromatization product in a multi-stage reverse flow reactor (RFR) apparatus are disclosed. The methods include at least two reaction stages in series, at least one being a pyrolysis stage and at least another being a catalytic aromatization stage. Using a highly saturated hydrocarbon feedstream the pyrolysis stage focuses on desaturation, while the catalytic aromatization stage focuses on aromatization. The catalytic aromatization stage contains a aromatization catalyst that can include substantially no magnesium, scandium, yttrium, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, rhenium, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, silver, gold, gallium, indium, tin, lanthanides, or actinides, or, in some cases, substantially no added active metals at all.Type: ApplicationFiled: April 12, 2019Publication date: October 24, 2019Inventors: Mayank Shekhar, James R. Lattner, Federico Barrai, Brian M. Weiss, Dhaval A. Bhandari, Joshua W. Allen
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Patent number: 10322991Abstract: A process for selective oxidation of dimethyl-1,1?-biphenyl to form methyl-1,1?-biphenyl mono-carboxylic acid(s), comprising contacting a solution of dimethyl-1,1?-biphenyl in acetic acid solvent in the presence of a Co(II) acetate catalyst and air, and optionally adding a co-solvent, or adding sodium or potassium acetate, and oxidizing the dimethyl-1,1?-biphenyl under time and temperature conditions sufficient to form one or more methyl-1,1?-biphenyl mono-carboxylic acid(s). The mono-carboxylic acids are advantageously isolated and esterified to form biphenyl mono-esters for use as plasticizers.Type: GrantFiled: December 1, 2017Date of Patent: June 18, 2019Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Michael P. Lanci, Joshua W. Allen, Jarid M. Metz, Victor DeFlorio, Jihad M. Dakka, Bryan A. Patel, Michael Salciccioli, Michael W. Weber, Stephen Zushma
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Patent number: 10287230Abstract: A process for selective oxidation of dimethyl-1,1?-biphenyl(s) to form methyl-1,1?-biphenyl mono-carboxylic acid(s), which can be esterified to form plasticizers, comprising contacting a solution of dimethyl-1,1?-biphenyl(s) in acetic acid in the presence of an oxidation catalyst and air under time and temperature conditions sufficient to oxidize the dimethyl-1,1?-biphenyl(s) into one or more methyl-1,1?-biphenyl mono-carboxylic acid(s) products, conducting at least one of (i) adding an antisolvent, or (ii) optimizing a total conversion of dimethyl-1,1?-biphenyl(s) by oxidation based upon a molar ratio of dimethyl-1,1?-biphenyl isomers, or (iii) precipitating the methyl-1,1?-biphenyl mono-carboxylic acid(s) products by lowering the temperature, or (iv) decreasing the oxidation reaction temperature to enhance conversion of aldehydes over methyl functional groups, so as to limit over-oxidation of the dimethyl-1,1?-biphenyl(s), wherein the oxidation reaction is conducted in the absence of bromide-containing cataType: GrantFiled: December 1, 2017Date of Patent: May 14, 2019Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Michael P. Lanci, Joshua W. Allen, Jarid M. Metz, Victor DeFlorio, Jihad M. Dakka, Bryan A. Patel, Michael Salciccioli, Michael W. Weber, Stephen Zushma
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Publication number: 20180333703Abstract: High temperature metal monoliths for use in reverse flow reactors and methods of preparing said monoliths are provided.Type: ApplicationFiled: May 11, 2018Publication date: November 22, 2018Inventors: Matthew S. IDE, Anastasios I. SKOULIDAS, Joseph A. CAMISA, Jianxin J. WU (deceased), Joshua W. ALLEN, Everett J. O'NEAL
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Publication number: 20180282241Abstract: In a process for the catalytic alkylation of an olefin with an isoparaffin, an olefin-containing feed is contacted with an isoparaffin-containing feed under alkylation conditions in the presence of a solid acid catalyst comprising a crystalline microporous material of the MWW framework types, wherein the olefin-containing feed consists essentially of pentenes.Type: ApplicationFiled: June 7, 2018Publication date: October 4, 2018Inventors: Vinit Choudhary, Jihad Dakka, Matthew S. Mettler, Ivy D. Johnson, Joshua W. Allen, Ajit B. Dandekar, Cynthia F. Omilian
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Publication number: 20180179141Abstract: A process for selective oxidation of dimethyl-1,1?-biphenyl(s) to form methyl-1,1?-biphenyl mono-carboxylic acid(s), which can be esterified to form plasticizers, comprising contacting a solution of dimethyl-1,1?-biphenyl(s) in acetic acid in the presence of an oxidation catalyst and air under time and temperature conditions sufficient to oxidize the dimethyl-1,1?-biphenyl(s) into one or more methyl-1,1?-biphenyl mono-carboxylic acid(s) products, conducting at least one of (i) adding an antisolvent, or (ii) optimizing a total conversion of dimethyl-1,1?-biphenyl(s) by oxidation based upon a molar ratio of dimethyl-1,1?-biphenyl isomers, or (iii) precipitating the methyl-1,1?-biphenyl mono-carboxylic acid(s) products by lowering the temperature, or (iv) decreasing the oxidation reaction temperature to enhance conversion of aldehydes over methyl functional groups, so as to limit over-oxidation of the dimethyl-1,1?-biphenyl(s), wherein the oxidation reaction is conducted in the absence of bromide-containing cataType: ApplicationFiled: December 1, 2017Publication date: June 28, 2018Inventors: Michael P. LANCI, Joshua W. ALLEN, Jarid M. METZ, Victor DeFLORIO, Jihad M. DAKKA, Bryan A. PATEL, Michael SALCICCIOLI, Michael W. WEBER, Stephen ZUSHMA
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Publication number: 20180179138Abstract: A process for selective oxidation of dimethyl-1,1?-biphenyl to form methyl-1,1?-biphenyl mono-carboxylic acid(s), comprising contacting a solution of dimethyl-1,1?-biphenyl in acetic acid solvent in the presence of a Co(II) acetate catalyst and air, and optionally adding a co-solvent, or adding sodium or potassium acetate, and oxidizing the dimethyl-1,1?-biphenyl under time and temperature conditions sufficient to form one or more methyl-1,1?-biphenyl mono-carboxylic acid(s). The mono-carboxylic acids are advantageously isolated and esterified to form biphenyl mono-esters for use as plasticizers.Type: ApplicationFiled: December 1, 2017Publication date: June 28, 2018Inventors: Michael P. LANCI, Joshua W. ALLEN, Jarid M. METZ, Victor DeFLORIO, Jihad M. DAKKA, Bryan A. PATEL, Michael SALCICCIOLI, Michael W. WEBER, Stephen ZUSHMA
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Publication number: 20170369392Abstract: In a process for the catalytic alkylation of an olefin with an isoparaffin, an olefin-containing feed is contacted with an isoparaffin-containing feed under alkylation conditions in the presence of a solid acid catalyst comprising a crystalline microporous material of the MWW framework types, wherein the olefin-containing feed consists essentially of pentenes.Type: ApplicationFiled: June 1, 2017Publication date: December 28, 2017Inventors: Vinit CHOUDHARY, Jihad M. DAKKA, Matthew S. METTLER, Ivy D. JOHNSON, Joshua W. ALLEN, Ajit B. DANDEKAR, Cynthia F. OMILIAN
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Publication number: 20170137285Abstract: A reforming catalyst with improved surface area is provided by using high surface area alumina doped with a stabilizer metal as a catalyst support. The surface area of the catalyst can be higher than a typical reforming catalyst, and the surface area can also be maintained under high temperature operation. This can allow use of the catalyst for reforming in a higher temperature environment while maintaining a higher surface area, which can allow for improved dispersion and/or activity of an active metal such as rhodium on the catalyst support. The catalyst can be suitable for production of syngas from natural gas or other hydrocarbon-containing feeds.Type: ApplicationFiled: November 4, 2016Publication date: May 18, 2017Inventors: Matthew S. IDE, John F. BRODY, Jianxin WU, Joshua W. ALLEN, Frank HERSHKOWITZ, Arsam BEHKISH, Arun K. SHARMA, Anastasios I. SKOULIDAS