Patents by Inventor Aditya Bhan
Aditya Bhan 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: 20230312446Abstract: Embodiments are directed towards a process for producing a (poly)alkylene glycol monoalkyl ether. The process includes providing an admixture of a crystalline metallosilicate molecular sieve catalyst and an oxide of a metal and reacting in a liquid phase process an olefin and a (poly)alkylene glycol in the presence of the admixture to yield the (poly)alkylene glycol monoalkyl ether. Reacting the olefin and the (poly)alkylene glycol in the presence of the admixture is at a temperature of 80° C. to 200° C.Type: ApplicationFiled: September 2, 2021Publication date: October 5, 2023Applicant: Dow Global Technologies LLCInventors: Beata A. Kilos, Aditya Bhan, Amy Wetzel, Wen-Sheng Lee
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Publication number: 20200031735Abstract: Embodiments of the present disclosure describe catalysts, methods of preparing catalysts, methods of forming hydrocarbons using the catalysts, and the like.Type: ApplicationFiled: July 29, 2019Publication date: January 30, 2020Inventors: Anurag Kumar, Neil Razdan, Aditya Bhan
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Patent number: 9356238Abstract: The present invention provides templating methods for replicating patterned metal films from a template substrate such as for use in plasmonic devices and metamaterials. Advantageously, the template substrate is reusable and can provide plural copies of the structure of the template substrate. Because high-quality substrates that are inherently smooth and flat are available, patterned metal films in accordance with the present invention can advantageously provide surfaces that replicate the surface characteristics of the template substrate both in the patterned regions and in the unpatterned regions.Type: GrantFiled: December 22, 2014Date of Patent: May 31, 2016Assignee: Regents of the University of MinnesotaInventors: David J. Norris, Sang Eon Han, Prashant Nagpal, Aditya Bhan, Nathan Charles Lindquist, Sang-Huyn Oh
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Publication number: 20150179938Abstract: The present invention provides templating methods for replicating patterned metal films from a template substrate such as for use in plasmonic devices and metamaterials. Advantageously, the template substrate is reusable and can provide plural copies of the structure of the template substrate. Because high-quality substrates that are inherently smooth and flat are available, patterned metal films in accordance with the present invention can advantageously provide surfaces that replicate the surface characteristics of the template substrate both in the patterned regions and in the unpatterned regions.Type: ApplicationFiled: December 22, 2014Publication date: June 25, 2015Inventors: David J. Norris, Sang Eon Han, Prashant Nagpal, Aditya Bhan, Nathan Charles Lindquist, Sang-Huyn Oh
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Patent number: 8948562Abstract: The present invention provides templating methods for replicating patterned metal films from a template substrate such as for use in plasmonic devices and metamaterials. Advantageously, the template substrate is reusable and can provide plural copies of the structure of the template substrate. Because high-quality substrates that are inherently smooth and flat are available, patterned metal films in accordance with the present invention can advantageously provide surfaces that replicate the surface characteristics of the template substrate both in the patterned regions and in the unpatterned regions.Type: GrantFiled: November 24, 2009Date of Patent: February 3, 2015Assignee: Regents of the University of MinnesotaInventors: David J. Norris, Sang Eon Han, Aditya Bhan, Prashant Nagpal, Nathan Charles Lindquist, Sang-Hyun Oh
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Patent number: 8702822Abstract: Methods and reactors for producing a fuel are disclosed herein. In some embodiments, the method uses a biomass feedstock and alkane and/or alcohol feedstock, which can be contacted with a metal-containing catalyst to form products including a bio-oil. In some embodiments, oxygen-containing functional groups can be removed from a bio-oil using one or more zeolite thin films.Type: GrantFiled: August 30, 2010Date of Patent: April 22, 2014Assignee: Regents of the University of MinnesotaInventors: Aditya Bhan, Michael Tsapatsis, Lanny D. Schmidt, Paul J. Dauenhauer
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Publication number: 20120161600Abstract: The present invention provides templating methods for replicating patterned metal films from a template substrate such as for use in plasmonic devices and metamaterials. Advantageously, the template substrate is reusable and can provide plural copies of the structure of the template substrate. Because high-quality substrates that are inherently smooth and flat are available, patterned metal films in accordance with the present invention can advantageously provide surfaces that replicate the surface characteristics of the template substrate both in the patterned regions and in the unpatterned regions.Type: ApplicationFiled: November 24, 2009Publication date: June 28, 2012Inventors: David J. Norris, Sang Eon Han, Aditya Bhan, Prashant Nagpal, Nathan Charles Lindquist, Sang-Hyun Oh
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Publication number: 20110047864Abstract: Methods and reactors for producing a fuel are disclosed herein. In some embodiments, the method uses a biomass feedstock and alkane and/or alcohol feedstock, which can be contacted with a metal-containing catalyst to form products including a bio-oil. In some embodiments, oxygen-containing functional groups can be removed from a bio-oil using one or more zeolite thin films.Type: ApplicationFiled: August 30, 2010Publication date: March 3, 2011Applicant: Regents of the University of MinnesotaInventors: Aditya Bhan, Michael Tsapatsis, Lanny D. Schmidt, Paul J. Dauenhauer
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Patent number: 7507855Abstract: A product comprising a C1-C3 aliphatic carboxylic acid or corresponding ester is produced by a process comprising carbonylating a C1-C3 aliphatic alcohol or a corresponding ester with carbon monoxide in the presence of a.zeolite catalyst having an 8-member ring channel which is interconnected with a channel defined by a ring with greater than or equal to 8 members, the 8-member ring having a window size of at least 2.5 Angstroms×at least 3.6 Angstroms and at least one Brønsted acid site and the zeolite having a silica:X2O3 ratio of at least 5, wherein X is selected from aluminium, boron, iron, gallium and mixtures thereof with the proviso that the zeolite is not mordenite or ferrierite.Type: GrantFiled: December 15, 2006Date of Patent: March 24, 2009Assignees: The Regents of the University of California, BP Chemicals Ltd.Inventors: Enrique Iglesia, John Glenn Sunley, David John Law, Aditya Bhan
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Patent number: 7465822Abstract: A product comprising a lower alkyl ester of a lower aliphatic carboxylic acid is produced by a process comprising reacting under substantially anhydrous conditions a lower alkyl ether with carbon monoxide in the presence of a zeolite catalyst having an 8-member ring channel which is interconnected with a channel defined by a ring with greater than or equal to 8 members, the 8-member ring having a window size of at least 2.5 Angstroms×at least 3.6 Angstroms and at least one Brønsted acid site and the zeolite having a silica:X2O3 ratio of at least 5, wherein X is selected from aluminum, boron, iron, gallium and mixtures thereof.Type: GrantFiled: December 15, 2006Date of Patent: December 16, 2008Assignees: BP Chemicals Ltd., The Regents of the University of CaliforniaInventors: Patricia Cheung, Enrique Iglesia, John Glenn Sunley, David John Law, Aditya Bhan
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Publication number: 20080146833Abstract: A product comprising a C1-C3 aliphatic carboxylic acid or corresponding ester is produced by a process comprising carbonylating a C1-C3 aliphatic alcohol or a corresponding ester with carbon monoxide in the presence of a zeolite catalyst having an 8-member ring channel which is interconnected with a channel defined by a ring with greater than or equal to 8 members, the 8-member ring having a window size of at least 2.5 Angstroms×at least 3.6 Angstroms and at least one Brønsted acid site and the zeolite having a silica:X2O3 ratio of at least 5, wherein X is selected from aluminium, boron, iron, gallium and mixtures thereof with the proviso that the zeolite is not mordenite or ferrierite.Type: ApplicationFiled: December 15, 2006Publication date: June 19, 2008Applicant: The Regents of the University of CaliforniaInventors: Enrique Iglesia, John Glenn Sunley, David John Law, Aditya Bhan
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Patent number: 7309798Abstract: A product comprising a lower alkyl ester of a lower aliphatic carboxylic acid is produced by a process comprising reacting a lower alkyl ether with carbon monoxide in the presence of a catalyst comprising mordenite and/or ferrierite, optionally including an additional framework metal such as gallium, boron and/or iron, under substantially anhydrous conditions. More specifically, methyl acetate is selectively produced by reaction of dimethyl ether with carbon monoxide in the presence of a catalyst comprising mordenite or ferrierite, under substantially anhydrous conditions.Type: GrantFiled: May 3, 2006Date of Patent: December 18, 2007Assignees: The Regents of the University of California, BP Chemicals LimitedInventors: Patricia Cheung, Enrique Iglesia, John Glenn Sunley, Aditya Bhan, David John Law
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Publication number: 20070238897Abstract: A product comprising a lower alkyl ester of a lower aliphatic carboxylic acid is produced by a process comprising reacting under substantially anhydrous conditions a lower alkyl ether with carbon monoxide in the presence of a zeolite catalyst having an 8-member ring channel which is interconnected with a channel defined by a ring with greater than or equal to 8 members, the 8-member ring having a window size of at least 2.5 Angstroms×at least 3.6 Angstroms and at least one Brønsted acid site and the zeolite having a silica:X2O3 ratio of at least 5, wherein X is selected from aluminum, boron, iron, gallium and mixtures thereof.Type: ApplicationFiled: December 15, 2006Publication date: October 11, 2007Applicants: The Regents of the University of California, BP Chemicals Ltd.Inventors: Patricia Cheung, Enrique Iglesia, John Sunley, David Law, Aditya Bhan
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Publication number: 20060287551Abstract: A product comprising a lower alkyl ester of a lower aliphatic carboxylic acid is produced by a process comprising reacting a lower alkyl ether with carbon monoxide in the presence of a catalyst comprising mordenite and/or ferrierite, optionally including an additional framework metal such as gallium, boron and/or iron, under substantially anhydrous conditions. More specifically, methyl acetate is selectively produced by reaction of dimethyl ether with carbon monoxide in the presence of a catalyst comprising mordenite or ferrierite, under substantially anhydrous conditions.Type: ApplicationFiled: May 3, 2006Publication date: December 21, 2006Applicants: The Regents of the University of California, BP Chemichal LimitedInventors: Patricia Cheung, Enrique Iglesia, John Sunley, Aditya Bhan, David Law