Patents by Inventor Ryan Skinner
Ryan Skinner 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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Publication number: 20230265463Abstract: The present disclosure relates to recombinant yeast host cells having (i) a first genetic modification for reducing the production of one or more native enzymes that function to produce glycerol or regulating glycerol synthesis and/or allowing the production of an heterologous glucoamylase and (ii) a second genetic modification for reducing the production of one or more native enzymes that function to produce trehalose or regulating trehalose synthesis and/or allowing the expression of an heterologous trehalase. The recombinant yeast host cells can be used to limit the production of (yeast-produced) trehalose (particularly extracellular trehalose) during fermentation and, in some embodiments, can increase the production of a fermentation product (such as, for example, ethanol).Type: ApplicationFiled: March 14, 2023Publication date: August 24, 2023Inventors: Charles F. Rice, Ryan Skinner, Trisha Barrett, Aaron Argyros
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Patent number: 11634734Abstract: The present disclosure relates to recombinant yeast host cells having (i) a first genetic modification for reducing the production of one or more native enzymes that function to produce glycerol or regulating glycerol synthesis and/or allowing the production of an heterologous glucoamylase and (ii) a second genetic modification for reducing the production of one or more native enzymes that function to produce trehalose or regulating trehalose synthesis and/or allowing the expression of an heterologous trehalase. The recombinant yeast host cells can be used to limit the production of (yeast-produced) trehalose (particularly extracellular trehalose) during fermentation and, in some embodiments, can increase the production of a fermentation product (such as, for example, ethanol).Type: GrantFiled: February 8, 2021Date of Patent: April 25, 2023Assignee: Lallemand Hungary Liquidity Management LLCInventors: Charles F. Rice, Ryan Skinner, Trisha Barrett, Aaron Argyros
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Patent number: 11572576Abstract: The present disclosure relates to recombinant yeast host cells having (i) a first genetic modification for reducing the production of one or more native enzymes that function to produce glycerol or regulating glycerol synthesis and/or allowing the production of an heterologous glucoamylase and (ii) a second genetic modification for reducing the production of one or more native enzymes that function to produce trehalose or regulating trehalose synthesis and/or allowing the expression of an heterologous trehalase. The recombinant yeast host cells can be used to limit the production of (yeast-produced) trehalose (particularly extracellular trehalose) during fermentation and, in some embodiments, can increase the production of a fermentation product (such as, for example, ethanol).Type: GrantFiled: February 8, 2021Date of Patent: February 7, 2023Assignee: Lallemand Hungary Liquidity Management LLCInventors: Charles F. Rice, Ryan Skinner, Trisha Barrett, Aaron Argyros
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Publication number: 20230028975Abstract: The present invention is directed to a yeast strain, or strains, secreting a full suite, or any subset of that full suite, of enzymes to hydrolyze corn starch, corn fiber, lignocellulose, (including enzymes that hydrolyze linkages in cellulose, hemicellulose, and between lignin and carbohydrates) and to utilize pentose sugars (xylose and arabinose). The invention is also directed to the set of proteins that are well expressed in yeast for each category of enzymatic activity. The resulting strain, or strains can be used to hydrolyze starch and cellulose simultaneously. The resulting strain, or strains can be also metabolically engineered to produce less glycerol and uptake acetate. The resulting strain, or strains can also be used to produce ethanol from granular starch without liquefaction.Type: ApplicationFiled: October 13, 2021Publication date: January 26, 2023Inventors: Elena Brevnova, John E. McBride, Erin Wiswall, Kevin S. Wenger, Nicky Caiazza, Heidi Hau, Aaron Argyros, Frank Agbogbo, Charles F. Rice, Trisha Barrett, John S. Bardsley, Abigail Foster, Anne K. Warner, Mark Mellon, Ryan Skinner, Indraneel Shikhare, Riaan Den Haan, Chhayal V. Gandhi, Alan Belcher, Vineet B. Rajgarhia, Allan C. Froehlich, Kristen M. Deleault, Emily Stonehouse, Shital A. Tripathi, Jennifer Gosselin, Yin-Ying Chiu, Haowen Xu
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Publication number: 20220220487Abstract: The present disclosure concerns a recombinant yeast host cell having a first genetic modification for expressing an heterologous trehalase, and a second genetic modification for increasing trehalose production. The present disclosure also concerns a process using the recombinant yeast host cell for making a fermented product, such as ethanol.Type: ApplicationFiled: November 13, 2019Publication date: July 14, 2022Inventors: Trisha Barrett, Ryan Skinner, Aaron Argyros
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Patent number: 11332728Abstract: The present disclosure relates to recombinant yeast strains capable of maintaining their robustness at high temperature as well as recombinant proteins expressed therefrom. The present disclosure also provides methods for using the recombinant yeast strain for making a fermentation product. The present disclosure further process a process for making recombinant yeast strains capable of maintaining their robustness at high temperature.Type: GrantFiled: August 29, 2016Date of Patent: May 17, 2022Assignee: Lallemand Hungary Liquidity Management LLCInventors: Charles F. Rice, Ryan Skinner, Trisha Barrett, Aaron Argyros
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Publication number: 20220127564Abstract: The present disclosure concerns recombinant yeast host cells expressing cell-associated heterologous proteins which are expressed during the propagation phase of the recombinant yeast host cells and processes for propagating same. The recombinant yeast host cells can be 5 used to make a yeast composition or a yeast product enriched in the heterologous proteins.Type: ApplicationFiled: March 13, 2018Publication date: April 28, 2022Inventors: Aaron Argyros, Michelle Oeser, Erin Wiswall, Janet Fisher, Johannes Van Eijk, J. Kevin Kraus, Kevin Wenger, Brooks Henningsen, Ryan Skinner
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Publication number: 20220002661Abstract: The present disclosure concerns recombinant yeast host cells having a first genetic modification for increasing formate production, when compared to a corresponding native yeast host cell as well as a source of formate dehydrogenase activity. The source of formate can be an internal source of formate dehydrogenase activity and/or the recombinant yeast host call can be supplemented by an external source of formate dehydrogenase activity.Type: ApplicationFiled: November 13, 2019Publication date: January 6, 2022Inventors: Trisha Barrett, Ryan Skinner, Aaron Argyros
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Publication number: 20210380989Abstract: The present disclosure concerns recombinant yeast host cells having a first genetic modification for downregulating a first metabolic pathway that converts NADP+ to NADPH, as well as a second genetic modification for upregulating a second metabolic pathway that converts NADP+ to NADPH. The second genetic modification allows the expression of a glyceraldehyde-3-phosphate dehydrogenase lacking phosphorylating activity, which can, in some embodiments, be from enzyme commission 1.2.1.9 or 1.2.1.90. The second pathway is distinct from the first metabolic pathway. The present disclosure also concerns a process for making and improving the yield of a fermented product, such as ethanol, using the recombinant yeast host cell.Type: ApplicationFiled: December 6, 2019Publication date: December 9, 2021Inventors: Ryan Skinner, Aaron Argyros, Adam Simard, Trisha Barrett
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Patent number: 11193130Abstract: The present invention is directed to a yeast strain, or strains, secreting a full suite, or any subset of that full suite, of enzymes to hydrolyze corn starch, corn fiber, lignocellulose, (including enzymes that hydrolyze linkages in cellulose, hemicellulose, and between lignin and carbohydrates) and to utilize pentose sugars (xylose and arabinose). The invention is also directed to the set of proteins that are well expressed in yeast for each category of enzymatic activity. The resulting strain, or strains can be used to hydrolyze starch and cellulose simultaneously. The resulting strain, or strains can be also metabolically engineered to produce less glycerol and uptake acetate. The resulting strain, or strains can also be used to produce ethanol from granular starch without liquefaction.Type: GrantFiled: May 30, 2019Date of Patent: December 7, 2021Assignees: Lallemand Hungary Liquidity Management LLC, Stellenbosch UniversityInventors: Elena Brevnova, John E. McBride, Erin Wiswall, Kevin S. Wenger, Nicky Caiazza, Heidi Hau, Aaron Argyros, Frank Agbogbo, Charles F. Rice, Trisha Barrett, John S. Bardsley, Abigail Foster, Anne K. Warner, Mark Mellon, Ryan Skinner, Indraneel Shikhare, Riaan Den Haan, Chhayal V. Gandhi, Alan Belcher, Vineet B. Rajgarhia, Allan C. Froehlich, Kristen M. Deleault, Emily Stonehouse, Shital A. Tripathi, Jennifer Gosselin, Yin-Ying Chiu, Haowen Xu
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Publication number: 20210163999Abstract: The present disclosure relates to recombinant yeast host cells having (i) a first genetic modification for reducing the production of one or more native enzymes that function to produce glycerol or regulating glycerol synthesis and/or allowing the production of an heterologous glucoamylase and (ii) a second genetic modification for reducing the production of one or more native enzymes that function to produce trehalose or regulating trehalose synthesis and/or allowing the expression of an heterologous trehalase. The recombinant yeast host cells can be used to limit the production of (yeast-produced) trehalose (particularly extracellular trehalose) during fermentation and, in some embodiments, can increase the production of a fermentation product (such as, for example, ethanol).Type: ApplicationFiled: February 8, 2021Publication date: June 3, 2021Inventors: Charles F. Rice, Ryan Skinner, Trisha Barrett, Aaron Argyros
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Publication number: 20210163998Abstract: The present disclosure relates to recombinant yeast host cells having (i) a first genetic modification for reducing the production of one or more native enzymes that function to produce glycerol or regulating glycerol synthesis and/or allowing the production of an heterologous glucoamylase and (ii) a second genetic modification for reducing the production of one or more native enzymes that function to produce trehalose or regulating trehalose synthesis and/or allowing the expression of an heterologous trehalase. The recombinant yeast host cells can be used to limit the production of (yeast-produced) trehalose (particularly extracellular trehalose) during fermentation and, in some embodiments, can increase the production of a fermentation product (such as, for example, ethanol).Type: ApplicationFiled: February 8, 2021Publication date: June 3, 2021Inventors: Charles F. Rice, Ryan Skinner, Trisha Barrett, Aaron Argyros
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Patent number: 10947568Abstract: The present disclosure relates to recombinant yeast host cells having (i) a first genetic modification for reducing the production of one or more native enzymes that function to produce glycerol or regulating glycerol synthesis and/or allowing the production of an heterologous glucoamylase and (ii) a second genetic modification for reducing the production of one or more native enzymes that function to produce trehalose or regulating trehalose synthesis and/or allowing the expression of an heterologous trehalase. The recombinant yeast host cells can be used to limit the production of (yeast-produced) trehalose (particularly extracellular trehalose) during fermentation and, in some embodiments, can increase the production of a fermentation product (such as, for example, ethanol).Type: GrantFiled: January 29, 2020Date of Patent: March 16, 2021Assignee: Lallemand Hungary Liquidity Management LLCInventors: Charles F. Rice, Ryan Skinner, Trisha Barrett, Aaron Argyros
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Publication number: 20210024909Abstract: The present disclosure relates to chimeric polypeptides for improving the hydrolysis of starch. The chimeric polypeptides has an alpha-amylase linked to a starch binding domain. The chimeric polypeptides can be provided in a purified form and/or can be expressed from 5 a recombinant host cell. The present disclosure also provides a population of recombinant host cells expressing the chimeric polypeptides.Type: ApplicationFiled: March 25, 2019Publication date: January 28, 2021Inventors: Ryan Skinner, Charles F. Rice, Aaron Argyros
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Publication number: 20200407758Abstract: The present disclosure relates to alpha-amylases for use in combination with glucoamylases for improving the hydrolysis of a raw starch. The alpha-amylases can be provided in a purified form and/or can be expressed from a recombinant host cell. The present disclosure also provides a population of recombinant host cells expressing the alpha-amylases to be used in combination with recombinant host cells expressing the glucoamylases.Type: ApplicationFiled: June 30, 2017Publication date: December 31, 2020Inventors: Ryan Skinner, Charles F. Rice, Aaron Argyros
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Publication number: 20200231991Abstract: The present disclosure relates to recombinant yeast host cells having (i) a first genetic modification for reducing the production of one or more native enzymes that function to produce glycerol or regulating glycerol synthesis and/or allowing the production of an heterologous glucoamylase and (ii) a second genetic modification for reducing the production of one or more native enzymes that function to produce trehalose or regulating trehalose synthesis and/or allowing the expression of an heterologous trehalase. The recombinant yeast host cells can be used to limit the production of (yeast-produced) trehalose (particularly extracellular trehalose) during fermentation and, in some embodiments, can increase the production of a fermentation product (such as, for example, ethanol).Type: ApplicationFiled: January 29, 2020Publication date: July 23, 2020Inventors: Charles F. Rice, Ryan Skinner, Trisha Barrett, Aaron Argyros
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Publication number: 20200095592Abstract: The present invention is directed to a yeast strain, or strains, secreting a full suite, or any subset of that full suite, of enzymes to hydrolyze corn starch, corn fiber, lignocellulose, (including enzymes that hydrolyze linkages in cellulose, hemicellulose, and between lignin and carbohydrates) and to utilize pentose sugars (xylose and arabinose). The invention is also directed to the set of proteins that are well expressed in yeast for each category of enzymatic activity. The resulting strain, or strains can be used to hydrolyze starch and cellulose simultaneously. The resulting strain, or strains can be also metabolically engineered to produce less glycerol and uptake acetate. The resulting strain, or strains can also be used to produce ethanol from granular starch without liquefaction.Type: ApplicationFiled: May 30, 2019Publication date: March 26, 2020Inventors: Elena Brevnova, John E. McBride, Erin Wiswall, Kevin S. Wenger, Nicky Caiazza, Heidi Hau, Aaron Argyros, Frank Agbogbo, Charles F. Rice, Trisha Barrett, John S. Bardsley, Abigail Foster, Anne K. Warner, Mark Mellon, Ryan Skinner, Indraneel Shikhare, Riaan Den Haan, Chhayal V. Gandhi, Alan Belcher, Vineet B. Rajgarhia, Allan C. Froehlich, Kristen M. Deleault, Emily Stonehouse, Shital A. Tripathi, Jennifer Gosselin, Yin-Ying Chiu, Haowen Xu
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Publication number: 20200087672Abstract: The present disclosure concerns recombinant yeast host cells expressing cell-associated heterologous food and/or feed enzymes which are expressed during the propagation phase of the recombinant yeast hosts cells. The recombinant yeast host cells can be used in a subsequent production process to make food and/or feed products, for example, baked products.Type: ApplicationFiled: March 13, 2018Publication date: March 19, 2020Inventors: Aaron Argyros, Michelle Oeser, Erin Wiswall, Janet Fisher, Johannes Van Eijk, J. Kevin Kraus, Kevin Wenger, Brooks Henningsen, Ryan Skinner
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Patent number: 10570421Abstract: The present disclosure relates to recombinant yeast host cells having (i) a first genetic modification for reducing the production of one or more native enzymes that function to produce glycerol or regulating glycerol synthesis and/or allowing the production of an heterologous glucoamylase and (ii) a second genetic modification for reducing the production of one or more native enzymes that function to produce trehalose or regulating trehalose synthesis and/or allowing the expression of an heterologous trehalase. The recombinant yeast host cells can be used to limit the production of (yeast-produced) trehalose (particularly extracellular trehalose) during fermentation and, in some embodiments, can increase the production of a fermentation product (such as, for example, ethanol).Type: GrantFiled: November 4, 2016Date of Patent: February 25, 2020Assignee: Lallemand Hungary Liquidity Management LLCInventors: Charles F. Rice, Ryan Skinner, Trisha Barrett, Aaron Argyros
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Patent number: 10385345Abstract: The present invention is directed to a yeast strain, or strains, secreting a full suite, or any subset of that full suite, of enzymes to hydrolyze corn starch, corn fiber, lignocellulose, (including enzymes that hydrolyze linkages in cellulose, hemicellulose, and between lignin and carbohydrates) and to utilize pentose sugars (xylose and arabinose). The invention is also directed to the set of proteins that are well expressed in yeast for each category of enzymatic activity. The resulting strain, or strains can be used to hydrolyze starch and cellulose simultaneously. The resulting strain, or strains can be also metabolically engineered to produce less glycerol and uptake acetate. The resulting strain, or strains can also be used to produce ethanol from granular starch without liquefaction.Type: GrantFiled: May 2, 2017Date of Patent: August 20, 2019Assignees: Lallemand Hungary Liquidity Management LLC, Universiteit StellenboschInventors: Elena Brevnova, John E. McBride, Erin Wiswall, Kevin S. Wenger, Nicky Caiazza, Heidi Hau, Aaron Argyros, Frank Agbogbo, Charles F. Rice, Trisha Barrett, John S. Bardsley, Abigail Foster, Anne K. Warner, Mark Mellon, Ryan Skinner, Indraneel Shikhare, Riaan Den Haan, Chhayal V. Gandhi, Alan Belcher, Vineet B. Rajgarhia, Allan C. Froehlich, Kristen M. Deleault, Emily Stonehouse, Shital A. Tripathi, Jennifer Gosselin, Yin-Ying Chiu, Haowen Xu