Patents by Inventor KEVIN D. NAGY

KEVIN D. NAGY 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).

  • Patent number: 11685907
    Abstract: A method for producing insoluble alpha-1,3-glucan is disclosed. Embodiments of the method comprise providing (i) oligosaccharides that comprise alpha-1,3 and alpha-1,6 glycosidic linkages, or (ii) oligosaccharides derived from a glucosyltransferase reaction; and contacting at least water, sucrose, a glucosyltransferase enzyme, and the oligosaccharides provided in the first step. Glucosyltransferase reaction compositions embodying such a method, and insoluble products thereof, are also disclosed. Yield and other product benefits can be realized when practicing the disclosed subject matter.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: June 27, 2023
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Kevin D. Nagy, Susan Marie Hennessey, Yefim Brun, Michael Reichman
  • Patent number: 11447805
    Abstract: Disclosed herein are aqueous compositions comprising fructose and methods of production thereof. A method for producing an aqueous composition comprising fructose can comprise, for example, conducting an enzymatic reaction by contacting water, sucrose, and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan having at least 30% alpha-1,3-linkages. A soluble fraction produced by such a reaction comprises at least about 55% fructose on a dry weight basis, and can be separated from insoluble poly alpha-1,3-glucan product(s), thereby providing an aqueous composition comprising fructose.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: September 20, 2022
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Kevin D. Nagy, Susan Marie Hennessey, Mark S. Payne, Charles R. Powley, Bogdan Szostek, Hannu Koivikko, Juho Järvinen, Daniel Elcholtz, Jyrki Kuusisto, Tapio Timo Viljava, Stephen Thomas Breske
  • Patent number: 11015150
    Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with an organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: May 25, 2021
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Kevin D. Nagy, Perry G. Caimi, T. Joseph Dennes, Susan Marie Hennessey, Ayrookaran J. Poulose, Jayme L. Paullin
  • Publication number: 20210108240
    Abstract: A method for producing insoluble alpha-1,3-glucan is disclosed. Embodiments of the method comprise providing (i) oligosaccharides that comprise alpha-1,3 and alpha-1,6 glycosidic linkages, or (ii) oligosaccharides derived from a glucosyltransferase reaction; and contacting at least water, sucrose, a glucosyltransferase enzyme, and the oligosaccharides provided in the first step. Glucosyltransferase reaction compositions embodying such a method, and insoluble products thereof, are also disclosed. Yield and other product benefits can be realized when practicing the disclosed subject matter.
    Type: Application
    Filed: September 9, 2020
    Publication date: April 15, 2021
    Inventors: Kevin D. Nagy, Susan Marie Hennessey, Yefim Brun, Michael Reichman
  • Patent number: 10774352
    Abstract: A method for producing insoluble alpha-1,3-glucan is disclosed. Embodiments of the method comprise providing (i) oligosaccharides that comprise alpha-1,3 and alpha-1,6 glycosidic linkages, or (ii) oligosaccharides derived from a glucosyltransferase reaction; and contacting at least water, sucrose, a glucosyltransferase enzyme, and the oligosaccharides provided in the first step. Glucosyltransferase reaction compositions embodying such a method, and insoluble products thereof, are also disclosed. Yield and other product benefits can be realized when practicing the disclosed subject matter.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: September 15, 2020
    Assignee: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
    Inventors: Kevin D. Nagy, Susan Marie Hennessey, Yefim Brun, Michael Reichman
  • Patent number: 10472657
    Abstract: A method is disclosed for hydrolyzing an alpha-1,3 or alpha-1,6 glucosyl-glucose linkage in a saccharide (disaccharide or oligosaccharide). This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,3 or alpha-1,6 glucosyl-glucose linkage of the saccharide. This method is useful for reducing the amount of oligosaccharides in a filtrate isolated from a glucan synthesis reaction, for example.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: November 12, 2019
    Assignee: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
    Inventors: Kevin D. Nagy, Erwin F. Columbus-Hago, Jayarama K Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu
  • Patent number: 10428362
    Abstract: A method is disclosed for hydrolyzing an alpha-1,5 glucosyl-fructose linkage in a saccharide (disaccharide or oligosaccharide) such as leucrose. This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase or glucoamylase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,5 glucosyl-fructose linkage of the saccharide. This method is useful for reducing the amount of leucrose in a filtrate isolated from a glucan synthesis reaction, for example.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: October 1, 2019
    Assignee: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Kevin D. Nagy, Erwin F. Columbus-Hago, Jayarama K. Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu
  • Publication number: 20190256877
    Abstract: Disclosed herein are aqueous compositions comprising fructose and methods of production thereof. A method for producing an aqueous composition comprising fructose can comprise, for example, conducting an enzymatic reaction by contacting water, sucrose, and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan having at least 30% alpha-1,3-linkages. A soluble fraction produced by such a reaction comprises at least about 55% fructose on a dry weight basis, and can be separated from insoluble poly alpha-1,3-glucan product(s), thereby providing an aqueous composition comprising fructose.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 22, 2019
    Inventors: KEVIN D NAGY, Susan Marie Hennessey, Mark S. Payne, Charles R. Powley, Bogdan Szostek, Hannu Koivikko, Juho Jarvinen, Daniel Elcholtz, Jyrki Kuusisto, Tapio Timo Viljava, Stephen Thomas Breske
  • Publication number: 20190144795
    Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with an organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
    Type: Application
    Filed: January 15, 2019
    Publication date: May 16, 2019
    Inventors: Kevin D. Nagy, Perry G. Caimi, T. Joseph Dennes, Susan Marie Hennessey, Ayrookaran J. Poulose, Jayme L. Paullin
  • Patent number: 10266861
    Abstract: Disclosed herein are aqueous compositions comprising fructose and methods of production thereof. A method for producing an aqueous composition comprising fructose can comprise, for example, conducting an enzymatic reaction by contacting water, sucrose, and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan having at least 30% alpha-1,3-linkages. A soluble fraction produced by such a reaction comprises at least about 55% fructose on a dry weight basis, and can be separated from insoluble poly alpha-1,3-glucan product(s), thereby providing an aqueous composition comprising fructose.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: April 23, 2019
    Assignees: E. I. DU PONT DE NEMOURS AND COMPANY, DUPONT NUTRITION BIOSCIENCES APS
    Inventors: Kevin D Nagy, Susan Marie Hennessey, Mark S Payne, Charles R Powley, Bogdan Szostek, Hannu Koivikko, Juho Jarvinen, Daniel Eicholtz, Jyrki Kuusisto, Tapio Timo Viljava, Stephen Thomas Breske
  • Patent number: 10221378
    Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with an organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: March 5, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Kevin D Nagy, Perry G Caimi, T Joseph Dennes, Susan Marie Hennessey, Ayrookaran J. Poulose, Jayme L Paullin
  • Publication number: 20190048376
    Abstract: A method is disclosed for hydrolyzing an alpha-1,3 or alpha-1,6 glucosyl-glucose linkage in a saccharide (disaccharide or oligosaccharide). This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,3 or alpha-1,6 glucosyl-glucose linkage of the saccharide. This method is useful for reducing the amount of oligosaccharides in a filtrate isolated from a glucan synthesis reaction, for example.
    Type: Application
    Filed: May 24, 2018
    Publication date: February 14, 2019
    Inventors: KEVIN D. NAGY, ERWIN F. COLUMBUS-HAGO, JAYARAMA K. SHETTY, SUSAN MARIE HENNESSEY, ROBERT DICOSIMO, LING HUA, RODRIGO RAMIREZ, ZHONGMEI TANG, ZHEYONG YU
  • Patent number: 10190079
    Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with a positively charged organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 29, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Kevin D. Nagy, Ayrookaran J. Poulose, T. Joseph Dennes, Perry G. Caimi, Jayme L. Paullin, Susan Marie Hennessey
  • Publication number: 20180340199
    Abstract: A method for producing insoluble alpha-1,3-glucan is disclosed. Embodiments of the method comprise providing (i) oligosaccharides that comprise alpha-1,3 and alpha-1,6 glycosidic linkages, or (ii) oligosaccharides derived from a glucosyltransferase reaction; and contacting at least water, sucrose, a glucosyltransferase enzyme, and the oligosaccharides provided in the first step. Glucosyltransferase reaction compositions embodying such a method, and insoluble products thereof, are also disclosed. Yield and other product benefits can be realized when practicing the disclosed subject matter.
    Type: Application
    Filed: May 22, 2018
    Publication date: November 29, 2018
    Inventors: Kevin D. Nagy, Susan Marie Hennessey, Yefim Brun, Michael Reichman
  • Publication number: 20180273999
    Abstract: A method is disclosed for hydrolyzing an alpha-1,5 glucosyl-fructose linkage in a saccharide (disaccharide or oligosaccharide) such as leucrose. This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase or glucoamylase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,5 glucosyl-fructose linkage of the saccharide. This method is useful for reducing the amount of leucrose in a filtrate isolated from a glucan synthesis reaction, for example.
    Type: Application
    Filed: May 10, 2018
    Publication date: September 27, 2018
    Inventors: KEVIN D NAGY, ERWIN F. COLUMBUS-HAGO, JAYARAMA K. SHETTY, SUSAN MARIE HENNESSEY, ROBERT DICOSIMO, LING HUA, RODRIGO RAMIREZ, ZHONGMEI TANG, ZHEYONG YU
  • Patent number: 9988657
    Abstract: A method is disclosed for hydrolyzing an alpha-1,3 or alpha-1,6 glucosyl-glucose linkage in a saccharide (disaccharide or oligosaccharide). This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,3 or alpha-1,6 glucosyl-glucose linkage of the saccharide. This method is useful for reducing the amount of oligosaccharides in a filtrate isolated from a glucan synthesis reaction, for example.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: June 5, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Kevin D Nagy, Erwin Columbus Hago, Jayarama K Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu
  • Patent number: 9982284
    Abstract: A method is disclosed for hydrolyzing an alpha-1,5 glucosyl-fructose linkage in a saccharide (disaccharide or oligosaccharide) such as leucrose. This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase or glucoamylase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,5 glucosyl-fructose linkage of the saccharide. This method is useful for reducing the amount of leucrose in a filtrate isolated from a glucan synthesis reaction, for example.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: May 29, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Kevin D Nagy, Erwin Columbus Hago, Jayarama K Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu
  • Publication number: 20180066214
    Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with an organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
    Type: Application
    Filed: August 17, 2017
    Publication date: March 8, 2018
    Inventors: KEVIN D. NAGY, PERRY G. CAIMI, T. JOSEPH DENNES, SUSAN MARIE HENNESSEY, AYROOKARAN J. POULOSE, JAYME L. PAULLIN
  • Publication number: 20180049457
    Abstract: An enzymatically produced soluble ?-glucan fiber composition is provided suitable for use as a digestion resistant fiber in food and feed applications. The soluble ?-glucan fiber composition can be blended with one or more additional food ingredients to produce fiber-containing compositions. Methods for the production and use of compositions comprising the soluble ?-glucan fiber are also provided.
    Type: Application
    Filed: May 22, 2015
    Publication date: February 22, 2018
    Inventors: Qiong Cheng, Robert Dicosimo, Arthur Ouwehand, Zheng You, Supaporn Suwannakham, Kevin D. Nagy, Mark S. Payne, Jahnavi Chandra Prasad
  • Publication number: 20170314050
    Abstract: A method is disclosed for hydrolyzing an alpha-1,3 or alpha-1,6 glucosyl-glucose linkage in a saccharide (disaccharide or oligosaccharide). This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,3 or alpha-1,6 glucosyl-glucose linkage of the saccharide. This method is useful for reducing the amount of oligosaccharides in a filtrate isolated from a glucan synthesis reaction, for example.
    Type: Application
    Filed: February 26, 2015
    Publication date: November 2, 2017
    Inventors: KEVIN D NAGY, Erwin Columbus Hago, Jayarama K Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu