Patents by Inventor Ronald C. Lundquist
Ronald C. Lundquist 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: 8440886Abstract: Fertile transgenic Zea mays (corn) plants which stably express heterologous DNA which is heritable are disclosed along with a process for producing said plants. The process comprises the microjectile bombardment of friable embryogenic callus from the plant to be transformed. The process may be applicable to other graminaceous cereal plants which have not proven stably transformable by other techniques.Type: GrantFiled: June 13, 2005Date of Patent: May 14, 2013Assignee: Monsanto Technology LLCInventors: Ronald C. Lundquist, David A. Walters
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Patent number: 7615685Abstract: This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs an EPSP synthase gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide glyphosate. The methods of achieving stable transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile plants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen. This invention also relates to methods of producing human or animal food from the transformed maize plants.Type: GrantFiled: August 9, 2006Date of Patent: November 10, 2009Assignee: Dekalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters, Julie A. Kirihara
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Patent number: 7064248Abstract: A method of preparing fertile transgenic Zea mays (corn) plants which stably express DNA encoding a Bacillus thuringiensis endotoxin, so as to impart insect resistance to the fertile transgenic plants is taught. The method comprises bombarding regenerable corn cells with DNA-coated microprojectiles, wherein the DNA is adjusted to be more efficiently expressed in corn than the native B. thuringiensis sequence, and regenerating a fertile transgenic plants from the transformed cells.Type: GrantFiled: March 27, 2001Date of Patent: June 20, 2006Assignee: DeKalb Genetics Corp.Inventors: Ronald C. Lundquist, David A. Walters, Julie A. Kirihara
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Patent number: 6946587Abstract: Fertile transgenic Zea mays (corn) plants which stably express heterologous DNA which is heritable are disclosed along with a process for producing said plants. The process comprises the microjectile bombardment of friable embryogenic callus from the plant to be transformed. The process may be applicable to other graminceous cereal plants which have not proven stably transformable by other techniques.Type: GrantFiled: July 10, 1996Date of Patent: September 20, 2005Assignee: DeKalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters
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Patent number: 6777589Abstract: This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs the Streptomyces bar gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide bialaphos. The methods of achieving stablefs transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile plants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen.Type: GrantFiled: May 15, 1995Date of Patent: August 17, 2004Assignee: DeKalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters
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Publication number: 20030070189Abstract: Fertile transgenic Zea mays (corn) plants which stably express heterologous DNA which is heritable are disclosed along with a process for producing said plants. The process comprises the microjectile bombardment of friable embryogenic callus from the plant to be transformed. The process may be applicable to other graminaceous cereal plants which have not proven stably transformable by other techniques.Type: ApplicationFiled: March 18, 2002Publication date: April 10, 2003Applicant: DEKALB GENETICS CORPORATIONInventors: Ronald C. Lundquist, David A. Walters
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Patent number: 6331665Abstract: Fertile transgenic Zea mays (corn) plants which stably express recombinant DNA which is heritable are provided wherein said DNA preferably comprises a recombinant gene which encodes a seed storage protein, so that the amino acid profile of the corn is improved.Type: GrantFiled: March 20, 1996Date of Patent: December 18, 2001Assignee: DeKalb Genetics Corp.Inventors: Ronald C. Lundquist, David A. Walters
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Patent number: 6329574Abstract: This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs the Streptomyces bar gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide bialaphos. The methods of achieving stablefs transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile plants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen.Type: GrantFiled: July 24, 1998Date of Patent: December 11, 2001Assignee: Dekalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters, Julie A. Kirihara
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Publication number: 20010032344Abstract: Fertile transgenic Zea mays (corn) plants which stably express recombinant DNA which is heritable are provided wherein said DNA preferably comprises a recombinant gene which encodes a seed storage protein, so that the amino acid profile of the corn is improved.Type: ApplicationFiled: March 27, 2001Publication date: October 18, 2001Applicant: DEKALB Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters, Julie A. Kirihara
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Patent number: 6160208Abstract: Fertile transgenic Zea mays (corn) plants which stably express recombinant DNA which is heritable are provided wherein said DNA preferably comprises a recombinant gene which encodes a seed storage protein, so that the amino acid profile of the corn is improved.Type: GrantFiled: March 20, 1996Date of Patent: December 12, 2000Assignee: DeKalb Genetics Corp.Inventors: Ronald C. Lundquist, David A. Walters, Julie A. Kirihara
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Patent number: 6025545Abstract: This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs the Streptomyces bar gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide bialaphos. The methods of achieving stables transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile plants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen.Type: GrantFiled: May 15, 1995Date of Patent: February 15, 2000Assignee: Dekalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters, T. Michael Spencer, Catherine J. Mackey
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Patent number: 6013863Abstract: A process of preparing fertile Zea mays plants is provided wherein said plants are resistant to the herbicide glyphosate, as well as processes for preparing seed, human food or animal feed therefrom.Type: GrantFiled: April 21, 1997Date of Patent: January 11, 2000Assignee: Dekalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters
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Patent number: 5990390Abstract: This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs the streptomyces bar gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide bialaphos. The methods of achieving stablefs transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile lants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen.Type: GrantFiled: March 27, 1996Date of Patent: November 23, 1999Assignee: Dekalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters, Julie A. Kirihara
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Patent number: 5780708Abstract: Fertile transgenic Zea mays (corn) plants which stably express recombinant DNA which is heritable are provided wherein said DNA preferably comprises a recombinant gene which encodes a seed storage protein, so that the amino acid profile of the corn is improved.Type: GrantFiled: March 20, 1996Date of Patent: July 14, 1998Assignee: Dekalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters
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Patent number: 5554798Abstract: Fertile transgenic Zea mays (corn) plants which stably express heterologous DNA which is heritable are provided along with a process for producing said plants. The preferred process comprises the microprojectile bombardment of friable embryogenic callus from the plant to be transformed. The process may be applicable to other graminaceous cereal plants which have not proven stably transformable by other techniques.Type: GrantFiled: May 15, 1995Date of Patent: September 10, 1996Assignee: DeKalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters
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Patent number: 5538880Abstract: Fertile transgenic Zea mays (corn) plants which stably express heterologous DNA which is heritable are disclosed along with a process for producing said plants. The process comprises the microjectile bombardment of friable embryogenic callus from the plant to be transformed. The process may be applicable to other graminaceous cereal plants which have not proven stably transformable by other techniques.Type: GrantFiled: May 26, 1994Date of Patent: July 23, 1996Assignee: DeKalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters
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Patent number: 5538877Abstract: Fertile transgenic Zea mays (corn) plants which stably express heterologous DNA which is heritable are disclosed along with a process for producing said plants. The process comprises the microjectile bombardment of friable embryogenic callus from the plant to be transformed. The process may be applicable to other graminaceous cereal plants which have not proven stably transformable by other techniques.Type: GrantFiled: November 10, 1992Date of Patent: July 23, 1996Assignee: DeKalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters
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Patent number: 5508468Abstract: Fertile transgenic Zea mays (corn) plants which stably express recombinant DNA which is heritable are provided wherein said DNA preferably comprises a recombinant gene which encodes a seed storage protein, so that the amino acid profile of the corn is improved.Type: GrantFiled: August 3, 1994Date of Patent: April 16, 1996Assignee: DeKalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters, Julie A. Kirihara
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Patent number: 5484956Abstract: Fertile transgenic Zea mays (corn) plants which stably express heterologous DNA which is heritable are provided along with a process for producing said plants. The preferred process comprises the microprojectile bombardment of friable embryogenic callus from the plant to be transformed. The process may be applicable to other graminaceous cereal plants which have not proven stably transformable by other techniques.Type: GrantFiled: April 11, 1990Date of Patent: January 16, 1996Assignee: DeKalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters
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Patent number: H2074Abstract: Fertile transgenic Zea mays (corn) plants which stably express recombinant DNA which is heritable are provided wherein said DNA preferably comprises a recombinant gene which encodes a seed storage protein, so that the amino acid profile of the corn is improved.Type: GrantFiled: July 12, 1996Date of Patent: July 1, 2003Assignee: DeKalb Genetics CorporationInventors: Ronald C. Lundquist, David A. Walters, Julie A. Kirihara