Patents Assigned to Iowa Corn Promotion Board
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Patent number: 11319269Abstract: 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: GrantFiled: September 24, 2020Date of Patent: May 3, 2022Assignee: Iowa Corn Promotion BoardInventors: David James Schreck, Mark Nunley, Donald Bunning, Brooke Albin, Louis A. Kapicak, Michael Bradford
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Patent number: 11319268Abstract: 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: GrantFiled: September 24, 2020Date of Patent: May 3, 2022Assignee: Iowa Corn Promotion BoardInventors: Ray Chrisman, Donald Bunning, Mark Nunley, Brooke Albin, Michael Bradford, Louis A. Kapicak, David James Schreck
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Patent number: 10975010Abstract: Continuous processes for making ethylene glycol form aldohexose-yielding carbohydrates are disclosed which enhance the selectivity to ethylene glycol.Type: GrantFiled: May 30, 2019Date of Patent: April 13, 2021Assignee: Iowa Corn Promotion BoardInventors: David James Schreck, Ray Chrisman, Brooke Albin, Donald Bunning, Mark Nunley
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Patent number: 10544072Abstract: Continuous processes for making ethylene glycol form aldohexose-yielding carbohydrates are disclosed which enhance the selectivity to ethylene glycol.Type: GrantFiled: June 2, 2017Date of Patent: January 28, 2020Assignee: Iowa Corn Promotion BoardInventors: David James Schreck, Ray Chrisman, Brooke Albin, Nye Clinton, Marion McKinley Bradford, Donald Bunning
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Patent number: 10472310Abstract: Continuous processes for making propylene glycol from ketose-yielding carbohydrates are disclosed which enhance the selectivity to propylene glycol.Type: GrantFiled: December 1, 2017Date of Patent: November 12, 2019Assignee: Iowa Corn Promotion BoardInventors: David James Schreck, Ray Chrisman, Brooke Albin, Nye Clinton, Marion McKinley Bradford, Donald Bunning
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Patent number: 9885056Abstract: 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: GrantFiled: June 23, 2016Date of Patent: February 6, 2018Assignee: Iowa Corn Promotion BoardInventors: James McLaren, Jagdeep Kaur, David Ertl, Douglas Bryant, Bala Venkata
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Patent number: 9783472Abstract: 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: GrantFiled: June 22, 2016Date of Patent: October 10, 2017Assignee: Iowa Corn Promotion BoardInventors: David James Schreck, Ray Chrisman, Brooke Albin, Nye Atwood Clinton, Marion McKinley Bradford
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Patent number: 9765084Abstract: 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: GrantFiled: April 9, 2009Date of Patent: September 19, 2017Assignee: Iowa Corn Promotion BoardInventors: Charles Guthrie Moyers, James Kermit Withrow, John Leonard Stephens
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Patent number: 9725701Abstract: 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: GrantFiled: March 15, 2013Date of Patent: August 8, 2017Assignee: Iowa Corn Promotion BoardInventors: James McLaren, Brian Vande Berg
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Patent number: 9416367Abstract: 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: GrantFiled: December 8, 2014Date of Patent: August 16, 2016Assignee: Iowa Corn Promotion BoardInventors: James McLaren, Nicholas Duck, Brian Vande Berg, Alissa Nicole Anthony, Vadim Beilinson, Jill Hinson
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Patent number: 9399610Abstract: 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: GrantFiled: May 18, 2015Date of Patent: July 26, 2016Assignee: Iowa Corn Promotion BoardInventors: David James Schreck, Ray Chrisman, Brooke Albin, Nye Atwood Clinton, Marion Bradford
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Patent number: 9120806Abstract: 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: GrantFiled: April 9, 2009Date of Patent: September 1, 2015Assignee: Iowa Corn Promotion BoardInventors: David James Schreck, Marion McKinley Bradford, Nye Atwood Clinton, Paul Aubry
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Publication number: 20140283224Abstract: 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: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: Iowa Corn Promotion BoardInventors: James McLaren, Brian Vande Berg
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Patent number: 8692070Abstract: 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: GrantFiled: November 1, 2010Date of Patent: April 8, 2014Assignee: Iowa Corn Promotion BoardInventors: James McLaren, Nicholas Duck, Brian Vande Berg, Philip Hammer, Laura Schouten
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Patent number: 8304212Abstract: 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: GrantFiled: July 10, 2007Date of Patent: November 6, 2012Assignees: Dyadic International, Inc., Battelle Memorial Institute, Iowa Corn Promotion BoardInventors: Marco A. Baez-Vasquez, Richard Burlingame, Jon K. Magnuson, Marion Bradford, Arkady Panteleimonovich Sinitsyn
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Publication number: 20120144520Abstract: 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: ApplicationFiled: December 1, 2011Publication date: June 7, 2012Applicant: IOWA CORN PROMOTION BOARDInventors: James McLaren, Nicholas Duck, Brian Vande Berg, Alissa Schawalder, Vadim Beilinson, Jill Hinson
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Publication number: 20110257346Abstract: 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: ApplicationFiled: March 17, 2011Publication date: October 20, 2011Applicant: IOWA CORN PROMOTION BOARDInventors: Michael Jaffe, Willis Hammond, Xianhong Feng, Anthony East
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Publication number: 20110252503Abstract: 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: ApplicationFiled: November 1, 2010Publication date: October 13, 2011Applicant: IOWA CORN PROMOTION BOARDInventors: James McLaren, Nicholas Duck, Brian Vande Berg, Philip Hammer, Laura Schouten
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Publication number: 20110237757Abstract: 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: ApplicationFiled: March 17, 2011Publication date: September 29, 2011Applicant: IOWA CORN PROMOTION BOARDInventors: Anthony East, Willis Hammond, Michael Jaffe, Xianhong Feng
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Publication number: 20090259056Abstract: 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: ApplicationFiled: April 9, 2009Publication date: October 15, 2009Applicant: IOWA CORN PROMOTION BOARDInventors: Charles Guthrie Moyers, James Kermit Withrow, John Leonard Stephens