Patents by Inventor Elizabeth Bowden
Elizabeth Bowden 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: 20240124147Abstract: A gas turbine engine includes an aft frame and a forward frame disposed upstream from the aft frame. The forward frame includes an outer ring. The outer ring includes an inner surface that is radially spaced from an outer surface. A first indention is defined in the outer surface, and a first engine mount flange protrudes radially outwardly from the first indention.Type: ApplicationFiled: October 13, 2022Publication date: April 18, 2024Inventors: William Joseph Bowden, Jonathan Edward Coleman, Sharad Tiwari, Srinivas Addagatla, Sara Elizabeth Carle
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Patent number: 9120743Abstract: The invention relates to a process for producing an acrylate product comprising the step of reacting a reaction gas mixture A comprising methanol and oxygen to form a product gas mixture A. The process may further comprise the step of combining at least a portion of the product gas mixture A and acetic acid to form a reaction gas mixture B. The process may further comprise the step of reacting at least a portion of the acetic acid in the reaction gas input mixture B with at least a portion of the formaldehyde in the reaction gas input mixture B to form a product gas mixture B. The process may further comprise the step of separating at least a portion of the product gas mixture B to form an alkylenating agent stream comprising at least 1 wt % alkylenating agent and an intermediate acrylate product stream comprising acrylate product.Type: GrantFiled: June 27, 2013Date of Patent: September 1, 2015Assignee: Celanese International CorporationInventors: Craig J. Peterson, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller, Dick Nagaki, Tianshu Pan, Himanshu Lodha
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Patent number: 9108184Abstract: The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, bismuth and titanium. Preferably, the catalyst comprises 0.3 wt % to 30 wt % vanadium, 0.1 wt % to 69 wt % bismuth and 0.1 wt % to 61 wt % tungsten, in an active phase.Type: GrantFiled: October 31, 2012Date of Patent: August 18, 2015Assignee: Celanese International CorporationInventors: Dick Nagaki, Tianshu Pan, Craig J. Peterson, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
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Patent number: 8962515Abstract: In one embodiment, the invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises a metal phosphate matrix containing vanadium and bismuth. Preferably, the catalyst comprises, in an active phase, vanadium to bismuth at a molar ratio of at least 0.02:1. Preferably, the catalyst composition is substantially free of titanium.Type: GrantFiled: October 31, 2012Date of Patent: February 24, 2015Assignee: Celanese International CorporationInventors: Dick Nagaki, Craig J. Peterson, Heiko Weiner, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
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Publication number: 20150005529Abstract: The invention relates to a process for producing an acrylate product comprising the step of reacting a reaction gas mixture A comprising methanol and oxygen to form a product gas mixture A. The process may further comprise the step of combining at least a portion of the product gas mixture A and acetic acid to form a reaction gas mixture B. The process may further comprise the step of reacting at least a portion of the acetic acid in the reaction gas input mixture B with at least a portion of the formaldehyde in the reaction gas input mixture B to form a product gas mixture B. The process may further comprise the step of separating at least a portion of the product gas mixture B to form an alkylenating agent stream comprising at least 1 wt % alkylenating agent and an intermediate acrylate product stream comprising acrylate product.Type: ApplicationFiled: June 27, 2013Publication date: January 1, 2015Applicant: Celanese International CorporationInventors: Craig J. Peterson, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller, Dick Nagaki, Tianshu Pan
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Publication number: 20140378702Abstract: In one embodiment, the present invention is directed to a process for producing an acrylate product. The process comprises the step of reacting, optionally in a reaction zone, a reaction mixture comprising an alkanoic acid and an alkylenating agent under conditions effective to form a crude acrylate product. The crude acrylate product comprises acrylate product and acetic acid. The process further comprises the step of reacting, in a separation zone, at least a portion of the acrylate product and at least a portion of the acetic acid to form an intermediate acrylate product. The intermediate acrylate product comprises a Michael addition by-product, e.g., 3-acetoxypropionic acid and/or 3-acetoxypropanoic acid. The process further comprises the step of separating at least a portion of the intermediate acrylate product to form a by-product stream and a purified acrylate product stream.Type: ApplicationFiled: June 25, 2013Publication date: December 25, 2014Inventors: Craig J. Peterson, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
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Publication number: 20140121403Abstract: A process for producing an acrylate product from methanol and acetic acid, in which, in a reaction zone A, the methanol is partially oxidized to formaldehyde in a catalyzed gas phase reaction, the product gas mixture A obtained and an acetic acid source are combined to form a reaction gas input mixture B which comprises acetic acid in excess over formaldehyde, and the formaldehyde in reaction gas input mixture B is aldol-condensed to acrylic acid in the presence of a catalyst in a reaction zone B to form an acrylic acid-containing product gas mixture B from which an acrylate product stream may be separated. Suitable aldol condensation catalysts include vanadium-bismuth, vanadium-titanium-bismuth, vanadium-bismuth-tungsten, vanadium-titanium-tungsten, vanadium-titanium and vanadium-tungsten.Type: ApplicationFiled: June 27, 2013Publication date: May 1, 2014Inventors: Dick Nagaki, Craig J. Peterson, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
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Patent number: 8669201Abstract: The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, titanium and tungsten. Preferably, the catalyst comprises vanadium to tungsten at a molar ratio of at least 0.02:1, in an active phase.Type: GrantFiled: October 31, 2012Date of Patent: March 11, 2014Assignee: Celanese International CorporationInventors: Dick Nagaki, Tianshu Pan, Craig J. Peterson, Heiko Weiner, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
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Publication number: 20130245310Abstract: A process for producing an acrylate product comprises the step of contacting an alkanoic acid and an alkylenating agent over a catalyst over conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, titanium and bismuth. Preferably, the catalyst comprises vanadium to bismuth at a molar ratio of greater than 0.2:1, in an active phase.Type: ApplicationFiled: March 11, 2013Publication date: September 19, 2013Applicant: Celanese International CorporationInventors: Dick Nagaki, Craig Peterson, Heiko Weiner, Elizabeth Bowden, Josefina T. Chapman
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Publication number: 20130245308Abstract: In one embodiment, the invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises a metal phosphate matrix containing vanadium and bismuth. Preferably, the catalyst comprises, in an active phase, vanadium to bismuth at a molar ratio of at least 0.02:1. Preferably, the catalyst composition is substantially free of titanium.Type: ApplicationFiled: October 31, 2012Publication date: September 19, 2013Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Dick Nagaki, Craig J. Peterson, Heiko Weiner, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
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Publication number: 20130245311Abstract: The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, titanium and tungsten. Preferably, the catalyst comprises vanadium to tungsten at a molar ratio of at least 0.02:1, in an active phase.Type: ApplicationFiled: October 31, 2012Publication date: September 19, 2013Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Dick Nagaki, Tianshu Pan, Craig J. Peterson, Heiko Weiner, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
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Publication number: 20130245312Abstract: The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, bismuth and titanium. Preferably, the catalyst comprises 0.3 wt % to 30 wt % vanadium, 0.1 wt % to 69 wt % bismuth and 0.1 wt % to 61 wt % tungsten, in an active phase.Type: ApplicationFiled: October 31, 2012Publication date: September 19, 2013Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Dick Nagaki, Tianshu Pan, Craig J. Peterson, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller