Patents by Inventor Chander Balakrishnan
Chander Balakrishnan 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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Patent number: 11180700Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: GrantFiled: May 15, 2020Date of Patent: November 23, 2021Assignee: Wilmar Trading Pte. Ltd.Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder
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Publication number: 20210040396Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: ApplicationFiled: May 15, 2020Publication date: February 11, 2021Applicant: Elevance Renewable Sciences, Inc.Inventors: Steven A. COHEN, Melvin L. Luetkens, Chander Balakrishnan, Robert Snyder
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Patent number: 10689582Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: GrantFiled: July 6, 2017Date of Patent: June 23, 2020Assignee: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder
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Publication number: 20180044597Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: ApplicationFiled: July 6, 2017Publication date: February 15, 2018Applicant: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Melvin L. Luetkens, JR., Chander Balakrishnan, Robert Snyder
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Patent number: 9732282Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: GrantFiled: September 19, 2016Date of Patent: August 15, 2017Assignee: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder
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Publication number: 20170066972Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: ApplicationFiled: September 19, 2016Publication date: March 9, 2017Applicant: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder
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Patent number: 9469827Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: GrantFiled: January 6, 2015Date of Patent: October 18, 2016Assignee: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder
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Patent number: 9464258Abstract: Methods are provided for refining natural oil feedstocks and partially hydrogenating polyunsaturated olefins and polyunsaturated esters. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the polyunsaturated olefins from the polyunsaturated esters in the metathesized product. In certain embodiments, the methods further comprise partially hydrogenating the polyunsaturated olefins in the presence of a hydrogenation catalyst, wherein at least a portion of the polyunsaturated olefins are converted to monounsaturated olefins. In other embodiments, the methods further comprise partially hydrogenating the polyunsaturated esters in the presence of a hydrogenation catalyst, wherein at least a portion of the polyunsaturated esters are converted to monounsaturated esters.Type: GrantFiled: April 30, 2015Date of Patent: October 11, 2016Assignee: Elevance Renewable Sciences, Inc.Inventors: Linda A. Kunz, Robert B. Snyder, Chander Balakrishnan, Tessa M. Pals, Melvin L. Luetkens, Jr., Steven A. Cohen
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Patent number: 9328055Abstract: Systems and methods are disclosed for refining natural oil feedstocks. In some embodiments, the methods comprise transesterifying glycerides in a natural oil feedstock to provide a transesterified product comprising monounsaturated fatty acid esters and polyunsaturated fatty acid esters. In some embodiments, the methods comprise separating the polyunsaturated fatty acid esters from the monounsaturated fatty acid esters (or vice versa), to provide a separated monounsaturated fatty acid ester composition having a ratio of at least 10 parts by weight of monounsaturated fatty acid esters for every 1 part by weight of polyunsaturated fatty acid esters.Type: GrantFiled: March 16, 2015Date of Patent: May 3, 2016Assignee: Elevance Renewable Sciences, Inc.Inventors: Chander Balakrishnan, Yenamandra Viswanath, Efimia Metsi-Guckel, Mary Bjorklund, Yongyou Hu, Jason Bronkema
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Patent number: 9273258Abstract: Methods are provided for producing a jet fuel composition from a feedstock including a natural oil. The methods include reacting the feedstock with a low-weight olefin in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product. The methods further include hydrogenating the metathesized product under conditions sufficient to form a jet fuel composition.Type: GrantFiled: December 8, 2014Date of Patent: March 1, 2016Assignee: Elevance Renewable Sciences, Inc.Inventors: Melvin L. Luetkens, Jr., Steven A. Cohen, Chander Balakrishnan
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Publication number: 20150266802Abstract: Systems and methods are disclosed for refining natural oil feedstocks. In some embodiments, the methods comprise transesterifying glycerides in a natural oil feedstock to provide a transesterified product comprising monounsaturated fatty acid esters and polyunsaturated fatty acid esters. In some embodiments, the methods comprise separating the polyunsaturated fatty acid esters from the monounsaturated fatty acid esters (or vice versa), to provide a separated monounsaturated fatty acid ester composition having a ratio of at least 10 parts by weight of monounsaturated fatty acid esters for every 1 part by weight of polyunsaturated fatty acid esters.Type: ApplicationFiled: March 16, 2015Publication date: September 24, 2015Applicant: ELEVANCE RENEWABLE SCIENCES, INC.Inventors: Chander Balakrishnan, Yenamandra Viswanath, Efima Metsi-Guckel, Mary Bjorklund, Yongyou Hu, Jason Bronkema
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Publication number: 20150247107Abstract: Methods are provided for refining natural oil feedstocks and partially hydrogenating polyunsaturated olefins and polyunsaturated esters. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the polyunsaturated olefins from the polyunsaturated esters in the metathesized product. In certain embodiments, the methods further comprise partially hydrogenating the polyunsaturated olefins in the presence of a hydrogenation catalyst, wherein at least a portion of the polyunsaturated olefins are converted to monounsaturated olefins. In other embodiments, the methods further comprise partially hydrogenating the polyunsaturated esters in the presence of a hydrogenation catalyst, wherein at least a portion of the polyunsaturated esters are converted to monounsaturated esters.Type: ApplicationFiled: April 30, 2015Publication date: September 3, 2015Applicant: ELEVANCE RENEWABLE SCIENCES, INC.Inventors: Linda A. Kunz, Robert B. Snyder, Chander Balakrishnan, Tessa M. Pals, Melvin L. Luetkens, JR., Steven A. Cohen
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Publication number: 20150240186Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: ApplicationFiled: January 6, 2015Publication date: August 27, 2015Applicant: ELEVANCE RENEWABLE SCIENCES, INC.Inventors: Steven A. Cohen, Melvin L. Luetkens, JR., Chander Balakrishnan, Robert Snyder
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Patent number: 9051519Abstract: Methods are provided for refining natural oil feedstocks and partially hydrogenating polyunsaturated olefins and polyunsaturated esters. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the polyunsaturated olefins from the polyunsaturated esters in the metathesized product. In certain embodiments, the methods further comprise partially hydrogenating the polyunsaturated olefins in the presence of a hydrogenation catalyst, wherein at least a portion of the polyunsaturated olefins are converted to monounsaturated olefins. In other embodiments, the methods further comprise partially hydrogenating the polyunsaturated esters in the presence of a hydrogenation catalyst, wherein at least a portion of the polyunsaturated esters are converted to monounsaturated esters.Type: GrantFiled: March 14, 2013Date of Patent: June 9, 2015Assignee: Elevance Renewable Sciences, Inc.Inventors: Linda A. Kunz, Tessa M. Pals, Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert B. Snyder
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Publication number: 20150119602Abstract: High-purity dibasic acid compositions are generally disclosed. In some embodiments, the dibasic acid compositions are solutions or suspensions. In some other embodiments, the compositions are solid-state compositions. In some such embodiments, the solid-state compositions include a dibasic acid as a crystalline solid and further include a low quantity of certain impurities, such as monobasic acids, various esters, and the like. Methods and systems for making such high-purity dibasic acid compositions are also disclosed.Type: ApplicationFiled: September 30, 2014Publication date: April 30, 2015Applicant: Elevance Renewable Sciences, Inc.Inventors: Alpeshkumar K. Patel, Brian Pease, Bradon J. Dreyer, Brian Albert, Colin Huie, Yenamandra Viswanath, Purvi Kapasi, Chander Balakrishnan, Steven A. Cohen, Thomas E. Snead, Demond L. Gildon
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Publication number: 20150094504Abstract: Methods are provided for producing a jet fuel composition from a feedstock including a natural oil. The methods include reacting the feedstock with a low-weight olefin in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product. The methods further include hydrogenating the metathesized product under conditions sufficient to form a jet fuel composition.Type: ApplicationFiled: December 8, 2014Publication date: April 2, 2015Applicant: ELEVANCE RENEWABLE SCIENCES, INC.Inventors: Melvin L. Luetkens, JR., Steven A. Cohen, Chander Balakrishnan
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Patent number: 8957268Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: GrantFiled: October 11, 2010Date of Patent: February 17, 2015Assignee: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder
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Patent number: 8933285Abstract: Methods are provided for producing a jet fuel composition from a feedstock comprising a natural oil. The methods comprise reacting the feedstock with a low-weight olefin in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product. The methods further comprise hydrogenating the metathesized product under conditions sufficient to form a jet fuel composition.Type: GrantFiled: November 25, 2009Date of Patent: January 13, 2015Assignee: Elevance Renewable Sciences, Inc.Inventors: Melvin L. Luetkens, Jr., Steven A. Cohen, Chander Balakrishnan
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Publication number: 20140336398Abstract: Methods are provided for refining natural oil feedstocks. The methods include reacting the feedstock with a low-molecular-weight olefin or mid-weight olefin in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product including olefins and esters. In certain embodiments, the methods further include separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further include transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: ApplicationFiled: April 15, 2014Publication date: November 13, 2014Applicant: ELEVANCE RENEWABLE SCIENCES, INC.Inventors: Steven A. Cohen, Melvin L. Luetkens, JR., Chander Balakrishnan, Robert Snyder, Yenamandra Viswanath, Efimia Metsi-Guckel, Robin Weitkamp
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Publication number: 20140336399Abstract: Methods are provided for refining natural oil feedstocks. The methods include reacting the feedstock with a molar excess of low-molecular-weight olefins in the presence of a metathesis catalyst. In certain embodiments, the methods further include separating at least a portion of the unreacted low-molecular-weight olefins. In certain embodiments, the methods further include recycling the separated unreacted low-molecular-weight olefins.Type: ApplicationFiled: July 16, 2014Publication date: November 13, 2014Applicant: ELEVANCE RENEWABLE SCIENCES, INC.Inventors: Steven A. Cohen, Melvin L. Luetkens, JR., Chander Balakrishnan, Robert Snyder