Patents Assigned to Iowa Corn Promotion Board
  • Patent number: 11319269
    Abstract: Retro-aldol processes are disclosed that use very low concentrations of retro-aldol catalyst in combination with hydrogenation catalyst of certain activities, sizes and spatial dispersions to obtain the high selectivities to ethylene glycol.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: May 3, 2022
    Assignee: Iowa Corn Promotion Board
    Inventors: David James Schreck, Mark Nunley, Donald Bunning, Brooke Albin, Louis A. Kapicak, Michael Bradford
  • Patent number: 11319268
    Abstract: By this invention processes are provided for the conversion of carbohydrate to ethylene glycol by retro-aldol catalysis and sequential hydrogenation using control methods having at least one of acetol (hydroxyacetone) and a tracer as inputs.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: May 3, 2022
    Assignee: Iowa Corn Promotion Board
    Inventors: Ray Chrisman, Donald Bunning, Mark Nunley, Brooke Albin, Michael Bradford, Louis A. Kapicak, David James Schreck
  • Patent number: 10975010
    Abstract: Continuous processes for making ethylene glycol form aldohexose-yielding carbohydrates are disclosed which enhance the selectivity to ethylene glycol.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: April 13, 2021
    Assignee: Iowa Corn Promotion Board
    Inventors: David James Schreck, Ray Chrisman, Brooke Albin, Donald Bunning, Mark Nunley
  • Patent number: 10544072
    Abstract: Continuous processes for making ethylene glycol form aldohexose-yielding carbohydrates are disclosed which enhance the selectivity to ethylene glycol.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: January 28, 2020
    Assignee: Iowa Corn Promotion Board
    Inventors: David James Schreck, Ray Chrisman, Brooke Albin, Nye Clinton, Marion McKinley Bradford, Donald Bunning
  • Patent number: 10472310
    Abstract: Continuous processes for making propylene glycol from ketose-yielding carbohydrates are disclosed which enhance the selectivity to propylene glycol.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: November 12, 2019
    Assignee: Iowa Corn Promotion Board
    Inventors: David James Schreck, Ray Chrisman, Brooke Albin, Nye Clinton, Marion McKinley Bradford, Donald Bunning
  • Patent number: 9885056
    Abstract: Methods and compositions for enhancing yield-related traits in plants by introducing and expressing in a plant a nucleic acid operably linked to a root-specific promoter, ICprom3.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: February 6, 2018
    Assignee: Iowa Corn Promotion Board
    Inventors: James McLaren, Jagdeep Kaur, David Ertl, Douglas Bryant, Bala Venkata
  • Patent number: 9783472
    Abstract: A continuous process for converting carbohydrates to ethylene and propylene glycol. The carbohydrates are mixed with water and passed through a reactor at a temperature that hydrolyzes the carbohydrate mixture at least partially to monosaccharides. The reactor has a first zone comprising a retro-aldol catalyst and a second zone comprising a reducing catalyst. The aldose is converted in the first zone into glycolaldehyde by the retro-aldol catalyst and the glycolaldehyde, in the presence of hydrogen, is converted to ethylene glycol in the second zone of the reactor. The reaction products are removed from the reactor and the ethylene glycol is recovered. The selectivity to propylene glycol can be enhanced via feeding ketose as the carbohydrate.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: October 10, 2017
    Assignee: Iowa Corn Promotion Board
    Inventors: David James Schreck, Ray Chrisman, Brooke Albin, Nye Atwood Clinton, Marion McKinley Bradford
  • Patent number: 9765084
    Abstract: A process for the production of a refined dianhydrosugar-containing product is disclosed. The process includes controlled continuous crystallization of the dianhydrosugar-containing product to produce a solution saturated with the dianhydrosugar. The saturated solution is mechanically separated, for example by centrifugation, and the crystalline product is washed. The only solvent used is water. The dianhydrosugar-containing product is upgraded to at least 99.8% purity and recovery is 95% or greater. Recrystallization of the dianhydrosugar of 99.8% purity results in an ultra pure product containing at least 99.99% dianhydrosugar.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: September 19, 2017
    Assignee: Iowa Corn Promotion Board
    Inventors: Charles Guthrie Moyers, James Kermit Withrow, John Leonard Stephens
  • Patent number: 9725701
    Abstract: The present invention relates to transgenic plants that have increased nitrogen use efficiency, stress tolerance, and/or alleviating a limitation such that yield is increased, or a combination of these and that have been transformed using a novel vector construct including a synthetic isocitrate dehydrogenase (icdh) gene that modulates nitrogen use in plants. The invention also relates to stacking the icdh gene with other exogenous or heterologous genes that modulate nitrogen use in the plant, including a N-acetylglutamate kinase gene. The invention also relates to methods of expressing in plants the nucleic acid molecules corresponding to the nucleic acid sequences that modulate nitrogen use in plants or are modulated by nitrogen conditions.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 8, 2017
    Assignee: Iowa Corn Promotion Board
    Inventors: James McLaren, Brian Vande Berg
  • Patent number: 9416367
    Abstract: The present invention relates to transgenic plants that have increased nitrogen use efficiency, stress tolerance, or both and that have been transformed using a novel vector construct including nucleic acid sequences that modulate nitrogen use in plants. In various embodiments, the vector construct includes one or more nucleic acid sequences selected from the group consisting of SEQ ID NO: 2, 4, 7, 9, 11, 13, 15, 17, 22, 24, 26, 28, 30, 32, 34, 36, or 38. The invention also relates to isolated vectors for transforming plants and to antibodies used for detecting transformed plants. The invention also relates to methods of expressing in plants the nucleic acid molecules corresponding to the nucleic acid sequences that modulate nitrogen use in plants or are modulated by nitrogen conditions.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: August 16, 2016
    Assignee: Iowa Corn Promotion Board
    Inventors: James McLaren, Nicholas Duck, Brian Vande Berg, Alissa Nicole Anthony, Vadim Beilinson, Jill Hinson
  • Patent number: 9399610
    Abstract: A continuous process for converting carbohydrates to ethylene and propylene glycol. The carbohydrates are mixed with water and passed through a reactor at a temperature that hydrolyzes the carbohydrate mixture at least partially to monosaccharides. The reactor has a first zone comprising a retro-aldol catalyst and a second zone comprising a reducing catalyst. The aldose is converted in the first zone into glycolaldehyde by the retro-aldol catalyst and the glycolaldehyde, in the presence of hydrogen, is converted to ethylene glycol in the second zone of the reactor. The reaction products are removed from the reactor and the ethylene glycol is recovered. The selectivity to propylene glycol can be enhanced via feeding ketose as the carbohydrate.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: July 26, 2016
    Assignee: Iowa Corn Promotion Board
    Inventors: David James Schreck, Ray Chrisman, Brooke Albin, Nye Atwood Clinton, Marion Bradford
  • Patent number: 9120806
    Abstract: An enhanced process for the production of a dianhydrosugar, such as isosorbide, from the corresponding sugar alcohol is described. The sugar alcohol is combined with an acid catalyst and reacted at elevated temperatures and at atmospheric pressure, eliminating the need for a vacuum. High selectivity and yields are achieved.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: September 1, 2015
    Assignee: Iowa Corn Promotion Board
    Inventors: David James Schreck, Marion McKinley Bradford, Nye Atwood Clinton, Paul Aubry
  • Publication number: 20140283224
    Abstract: The present invention relates to transgenic plants that have increased nitrogen use efficiency, stress tolerance, and/or alleviating a limitation such that yield is increased, or a combination of these and that have been transformed using a novel vector construct including a synthetic isocitrate dehydrogenase (icdh) gene that modulates nitrogen use in plants. The invention also relates to stacking the icdh gene with other exogenous or heterologous genes that modulate nitrogen use in the plant, including a N-acetylglutamate kinase gene. The invention also relates to methods of expressing in plants the nucleic acid molecules corresponding to the nucleic acid sequences that modulate nitrogen use in plants or are modulated by nitrogen conditions.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Iowa Corn Promotion Board
    Inventors: James McLaren, Brian Vande Berg
  • Patent number: 8692070
    Abstract: The present invention relates to transgenic plants that have increased nitrogen use efficiency, stress tolerance, and/or alleviating a limitation such that yield is increased, or a combination of these and that have been transformed using a novel vector construct including a synthetic N-acetyl glutamate kinase (NAGK) gene that modulates nitrogen use in plants. The invention also includes the overexpression and enzymatic characterization of an arginine-insensitive NAGK isolated from a bacterial strain that improves stress tolerance and nitrogen uptake, metabolism or both. In various embodiments, the vector construct includes one or more nucleic acid sequences including SEQ ID NO: 1. The invention also relates to isolated vectors for transforming plants and to antibodies used for detecting transformed plants.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: April 8, 2014
    Assignee: Iowa Corn Promotion Board
    Inventors: James McLaren, Nicholas Duck, Brian Vande Berg, Philip Hammer, Laura Schouten
  • Patent number: 8304212
    Abstract: Methods to convert lignocellulosic biomass to fermentable sugars with enzymes that degrade the lignocellulosic material are provided, as well as novel combinations of enzymes, including those that provide a synergistic release of sugars from plant biomass.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: November 6, 2012
    Assignees: Dyadic International, Inc., Battelle Memorial Institute, Iowa Corn Promotion Board
    Inventors: Marco A. Baez-Vasquez, Richard Burlingame, Jon K. Magnuson, Marion Bradford, Arkady Panteleimonovich Sinitsyn
  • Publication number: 20120144520
    Abstract: The present invention relates to transgenic plants that have increased nitrogen use efficiency, stress tolerance, or both and that have been transformed using a novel vector construct including nucleic acid sequences that modulate nitrogen use in plants. In various embodiments, the vector construct comprises a nucleic acid sequence selected from the group consisting of SEQ ID NO: 2, 4, 7, 9, 11, 13, 15, 17, 22, 24, 26, 28, 30, 32, 34, 36, or 38. The invention also relates to isolated vectors for transforming plants and to antibodies used for detecting transformed plants. The invention also relates to methods of expressing in plants the nucleic acid molecules corresponding to the nucleic acid sequences that modulate nitrogen use in plants or are modulated by nitrogen conditions.
    Type: Application
    Filed: December 1, 2011
    Publication date: June 7, 2012
    Applicant: IOWA CORN PROMOTION BOARD
    Inventors: James McLaren, Nicholas Duck, Brian Vande Berg, Alissa Schawalder, Vadim Beilinson, Jill Hinson
  • Publication number: 20110257346
    Abstract: Asymmetrically substituted compounds of bisanhydrohexitols are described, including the bisanhydrohexitol isosorbide. The compounds are useful as monomers. The synthesis of polymers from the monomers is also described.
    Type: Application
    Filed: March 17, 2011
    Publication date: October 20, 2011
    Applicant: IOWA CORN PROMOTION BOARD
    Inventors: Michael Jaffe, Willis Hammond, Xianhong Feng, Anthony East
  • Publication number: 20110252503
    Abstract: The present invention relates to transgenic plants that have increased nitrogen use efficiency, stress tolerance, and/or alleviating a limitation such that yield is increased, or a combination of these and that have been transformed using a novel vector construct including a synthetic N-acetyl glutamate kinase (NAGK) gene that modulates nitrogen use in plants. The invention also includes the overexpression and enzymatic characterization of an arginine-insensitive NAGK isolated from a bacterial strain that improves stress tolerance and nitrogen uptake, metabolism or both. In various embodiments, the vector construct includes one or more nucleic acid sequences including SEQ ID NO: 1. The invention also relates to isolated vectors for transforming plants and to antibodies used for detecting transformed plants.
    Type: Application
    Filed: November 1, 2010
    Publication date: October 13, 2011
    Applicant: IOWA CORN PROMOTION BOARD
    Inventors: James McLaren, Nicholas Duck, Brian Vande Berg, Philip Hammer, Laura Schouten
  • Publication number: 20110237757
    Abstract: Asymmetrically substituted compounds of bisanhydrohexitols are described, including the bisanhydrohexitol isosorbide. The compounds are useful as AB monomers. The synthesis of polymers from the monomers is also described.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 29, 2011
    Applicant: IOWA CORN PROMOTION BOARD
    Inventors: Anthony East, Willis Hammond, Michael Jaffe, Xianhong Feng
  • Publication number: 20090259056
    Abstract: A process for the production of a refined dianhydrosugar-containing product is disclosed. The process includes controlled continuous crystallization of the dianhydrosugar-containing product to produce a solution saturated with the dianhydrosugar. The saturated solution is mechanically separated, for example by centrifugation, and the crystalline product is washed. The only solvent used is water. The dianhydrosugar-containing product is upgraded to at least 99.8% purity and recovery is 95% or greater. Recrystallization of the dianhydrosugar of 99.8% purity results in an ultra pure product containing at least 99.99% dianhydrosugar.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 15, 2009
    Applicant: IOWA CORN PROMOTION BOARD
    Inventors: Charles Guthrie Moyers, James Kermit Withrow, John Leonard Stephens