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).

  • Publication number: 20230312446
    Abstract: 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: Application
    Filed: September 2, 2021
    Publication date: October 5, 2023
    Applicant: Dow Global Technologies LLC
    Inventors: Beata A. Kilos, Aditya Bhan, Amy Wetzel, Wen-Sheng Lee
  • Publication number: 20200031735
    Abstract: Embodiments of the present disclosure describe catalysts, methods of preparing catalysts, methods of forming hydrocarbons using the catalysts, and the like.
    Type: Application
    Filed: July 29, 2019
    Publication date: January 30, 2020
    Inventors: Anurag Kumar, Neil Razdan, Aditya Bhan
  • Patent number: 9356238
    Abstract: 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: Grant
    Filed: December 22, 2014
    Date of Patent: May 31, 2016
    Assignee: Regents of the University of Minnesota
    Inventors: David J. Norris, Sang Eon Han, Prashant Nagpal, Aditya Bhan, Nathan Charles Lindquist, Sang-Huyn Oh
  • Publication number: 20150179938
    Abstract: 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: Application
    Filed: December 22, 2014
    Publication date: June 25, 2015
    Inventors: David J. Norris, Sang Eon Han, Prashant Nagpal, Aditya Bhan, Nathan Charles Lindquist, Sang-Huyn Oh
  • Patent number: 8948562
    Abstract: 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: Grant
    Filed: November 24, 2009
    Date of Patent: February 3, 2015
    Assignee: Regents of the University of Minnesota
    Inventors: David J. Norris, Sang Eon Han, Aditya Bhan, Prashant Nagpal, Nathan Charles Lindquist, Sang-Hyun Oh
  • Patent number: 8702822
    Abstract: 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: Grant
    Filed: August 30, 2010
    Date of Patent: April 22, 2014
    Assignee: Regents of the University of Minnesota
    Inventors: Aditya Bhan, Michael Tsapatsis, Lanny D. Schmidt, Paul J. Dauenhauer
  • Publication number: 20120161600
    Abstract: 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: Application
    Filed: November 24, 2009
    Publication date: June 28, 2012
    Inventors: David J. Norris, Sang Eon Han, Aditya Bhan, Prashant Nagpal, Nathan Charles Lindquist, Sang-Hyun Oh
  • Publication number: 20110047864
    Abstract: 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: Application
    Filed: August 30, 2010
    Publication date: March 3, 2011
    Applicant: Regents of the University of Minnesota
    Inventors: Aditya Bhan, Michael Tsapatsis, Lanny D. Schmidt, Paul J. Dauenhauer
  • Patent number: 7507855
    Abstract: 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: Grant
    Filed: December 15, 2006
    Date of Patent: March 24, 2009
    Assignees: The Regents of the University of California, BP Chemicals Ltd.
    Inventors: Enrique Iglesia, John Glenn Sunley, David John Law, Aditya Bhan
  • Patent number: 7465822
    Abstract: 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: Grant
    Filed: December 15, 2006
    Date of Patent: December 16, 2008
    Assignees: BP Chemicals Ltd., The Regents of the University of California
    Inventors: Patricia Cheung, Enrique Iglesia, John Glenn Sunley, David John Law, Aditya Bhan
  • Publication number: 20080146833
    Abstract: 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: Application
    Filed: December 15, 2006
    Publication date: June 19, 2008
    Applicant: The Regents of the University of California
    Inventors: Enrique Iglesia, John Glenn Sunley, David John Law, Aditya Bhan
  • Patent number: 7309798
    Abstract: 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: Grant
    Filed: May 3, 2006
    Date of Patent: December 18, 2007
    Assignees: The Regents of the University of California, BP Chemicals Limited
    Inventors: Patricia Cheung, Enrique Iglesia, John Glenn Sunley, Aditya Bhan, David John Law
  • Publication number: 20070238897
    Abstract: 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: Application
    Filed: December 15, 2006
    Publication date: October 11, 2007
    Applicants: The Regents of the University of California, BP Chemicals Ltd.
    Inventors: Patricia Cheung, Enrique Iglesia, John Sunley, David Law, Aditya Bhan
  • Publication number: 20060287551
    Abstract: 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: Application
    Filed: May 3, 2006
    Publication date: December 21, 2006
    Applicants: The Regents of the University of California, BP Chemichal Limited
    Inventors: Patricia Cheung, Enrique Iglesia, John Sunley, Aditya Bhan, David Law