Patents by Inventor George J. Hoerster
George J. Hoerster 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: 20230124856Abstract: Compositions and methods for genome editing in sunflower are provided. Exemplary compositions include constructs for Cas endonuclease mediated genome editing of the FAD2-1 locus as well as sunflower plants, seeds and cells thereof which are modified using the disclosed compositions.Type: ApplicationFiled: March 23, 2021Publication date: April 20, 2023Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: GEORGE J. HOERSTER, SANDEEP KUMAR, BRIAN L LENDERTS, KEITH S LOWE
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Patent number: 11330776Abstract: The disclosure pertains to methods and compositions for the rapid and efficient transformation of plants. The disclosure further provides methods for producing a transgenic plant, comprising (a) transforming a cell of an explant with an expression construct comprising (i) a nucleotide sequence encoding a WUS/WOX homeobox polypeptide; (ii) a nucleotide sequence encoding a polypeptide comprising two AP2-DNA binding domains; or (iii) a combination of (i) and (ii); and (b) allowing expression of the polypeptide of (a) in each transformed cell to form a regenerable plant structure in the absence of exogenous cytokinin, wherein no callus is formed; and (c) germinating the regenerable plant structure to form the transgenic plant. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.Type: GrantFiled: August 26, 2016Date of Patent: May 17, 2022Inventors: Ajith Anand, Maren L. Arling, Alexandre Da Silva Conceicao, William James Gordon-Kamm, Craig E Hastings, George J Hoerster, Todd J Jones, Theodore Mitchell Klein, Carlos M La Rota, Keith S Lowe, Shiv Bahadur Tiwari, Ning Wang, Xinli Emily Wu
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Publication number: 20220124998Abstract: The disclosure pertains to methods and compositions for the rapid and efficient transformation of plants. The disclosure further provides methods for producing a transgenic plant, comprising (a) transforming a cell of an explant with an expression construct comprising (i) a nucleotide sequence encoding a WUS/WOX homeobox polypeptide; (ii) a nucleotide sequence encoding a polypeptide comprising two AP2-DNA binding domains; or (iii) a combination of (i) and (ii); and (b) allowing expression of the polypeptide of (a) in each transformed cell to form a regenerable plant structure in the absence of exogenous cytokinin, wherein no callus is formed; and (c) germinating the regenerable plant structure to form the transgenic plant. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.Type: ApplicationFiled: January 7, 2022Publication date: April 28, 2022Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: AJITH ANAND, MAREN L ARLING, ALEXANDRE DA SILVA CONCEICAO, WILLIAM JAMES GORDON-KAMM, CRAIG HASTINGS, GEORGE J HOERSTER, TODD J JONES, THEODORE M KLEIN, CARLOS M LA ROTA, KEITH S LOWE, SHIV BAHADUR TIWARI, NING WANG, XINLI EMILY WU
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Publication number: 20210062203Abstract: The methods disclosed herein use a morphogenic gene or a repressor gene to provide a transgenic plant containing a single copy of a transgenic event wherein the morphogenic gene or the repressor gene does not integrate into the genome of the plant and the plant does not contain vector (plasmid) backbone.Type: ApplicationFiled: March 11, 2019Publication date: March 4, 2021Applicant: Pioneer Hi-Bred International, Inc.Inventors: Ajith ANAND, William James GORDON-KAMM, George J. HOERSTER, Keith S. LOWE, Kevin E. MCBRIDE
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Publication number: 20110167522Abstract: The invention provides isolated polynucleotides, specifically Cyclin D polynucleotides, and their encoded proteins that are involved in cell cycle regulation. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and antibody compositions. The present invention provides methods and compositions relating to altering cell cycle protein content and/or composition of plants for the purpose of increasing transformation efficiency.Type: ApplicationFiled: July 28, 2010Publication date: July 7, 2011Applicant: Pioneer Hi-Bred International, Inc.Inventors: Keith S. Lowe, Yumin Tao, William J. Gordon-Kamm, Carolyn A. Gregory, John A. McElver, George J. Hoerster, Sheila E. Maddock
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Publication number: 20100285591Abstract: The invention provides isolated polynucleotides, specifically Cyclin D polynucleotides, and their encoded proteins that are involved in cell cycle regulation. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and antibody compositions. The present invention provides methods and compositions relating to altering cell cycle protein content and/or composition of plants for the purpose of increasing transformation efficiency.Type: ApplicationFiled: July 27, 2010Publication date: November 11, 2010Applicant: Pioneer Hi-Bred International, Inc.Inventors: Keith S. Lowe, Yumin Tao, William J. Gordon-Kamm, Carolyn A. Gregory, John A. McElver, George J. Hoerster, Sheila E. Maddock
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Patent number: 7799566Abstract: The invention provides isolated polynucleotides, specifically Cyclin D polynucleotides, and their encoded proteins that are involved in cell cycle regulation. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and antibody compositions. The present invention provides methods and compositions relating to altering cell cycle protein content and/or composition of plants for the purpose of increasing transformation efficiency.Type: GrantFiled: November 16, 2006Date of Patent: September 21, 2010Assignee: Pioneer Hi-Bred International, Inc.Inventors: Keith S. Lowe, Yumin Tao, William J. Gordon-Kamm, Carolyn A. Gregory, John A. McElver, George J. Hoerster, Sheila E. Maddock
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Publication number: 20080242624Abstract: The invention provides isolated polynucleotides, specifically Cyclin D polynucleotides, and their encoded proteins that are involved in cell cycle regulation. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and antibody compositions. The present invention provides methods and compositions relating to altering cell cycle protein content and/or composition of plants for the purpose of increasing transformation efficiency.Type: ApplicationFiled: November 16, 2006Publication date: October 2, 2008Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Keith S. Lowe, Yumin Tao, William J. Gordon-Kamm, Carolyn A. Gregory, John A. McElver, George J. Hoerster, Sheila E. Maddock
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Patent number: 7309813Abstract: The invention provides novel methods of using viral replicase polypeptides and polynucleotides. Included are methods for increasing transformation frequencies, increasing crop yield, providing a positive growth advantage, modulating cell division, transiently modulating cell division, and for providing a means of positive selection.Type: GrantFiled: October 28, 2004Date of Patent: December 18, 2007Assignee: Pioneer Hi-Bred International, Inc.Inventors: William J. Gordon-Kamm, Keith S. Lowe, Matthew A. Bailey, Carolyn A. Gregory, George J. Hoerster, Brian A. Larkins, Brian R. Dilkes, Ronald Burnett, Young Min Woo
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Patent number: 7220894Abstract: The invention provides methods of transforming plants and plant cells including recalcitrant cells with isolated nucleic acids encoding LEC1 transcriptional activators to induce transformation or regeneration efficiency, apomixis or somatic embryogenesis.Type: GrantFiled: December 22, 2003Date of Patent: May 22, 2007Assignees: Pioneer Hi-Bred International, Inc., E.I. du Pont de Nemours and CompanyInventors: Keith S. Lowe, William J. Gordon-Kamm, Theodore M. Klein, Sonriza Rasco-Gaunt, Xifan Sun, George J. Hoerster
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Patent number: 7166765Abstract: The invention provides isolated nucleic acids and their encoded proteins which act as transcriptional activators and methods of use thereof. The invention further provides expression cassettes, transformed host cells, transgenic plants and plant parts.Type: GrantFiled: December 22, 2003Date of Patent: January 23, 2007Assignees: Pioneer Hi-Bred International, Inc., E. I. du Pont de Nemours and CompanyInventors: Keith S. Lowe, William J. Gordon-Kamm, Theodore M. Klein, Sonriza Rasco-Gaunt, Rebecca E. Cahoon, Xifan Sun, George J. Hoerster, Carolyn Gregory, Ramgopal Nadimpalli, Yumin Tao
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Patent number: 6825397Abstract: The invention provides isolated polynucleotides and their encoded proteins which act as transcriptional activators and methods of use thereof. The invention further provides expression cassettes, transformed host cells, transgenic plants and plant parts.Type: GrantFiled: November 8, 1999Date of Patent: November 30, 2004Assignees: Pioneer Hi-Bred International, Inc., E.I. du Pont de Nemours and CompanyInventors: Keith S. Lowe, William J. Gordon-Kamm, Theodore M. Klein, Sonriza Rasco-Gaunt, Rebecca E. Cahoon, Xifan Sun, George J. Hoerster, Carolyn A. Gregory, Ramgopal Nadimpalli
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Publication number: 20040168217Abstract: The invention provides isolated nucleic acids and their encoded proteins which act as transcriptional activators and methods of use thereof. The invention further provides expression cassettes, transformed host cells, transgenic plants and plant parts, and antibody compositions.Type: ApplicationFiled: December 22, 2003Publication date: August 26, 2004Applicants: Pioneer Hi-Bred International, Inc., E.I. du Pont de Nemours and CompanyInventors: Keith S. Lowe, William J. Gordon-Kamm, Theodore M. Klein, Sonriza Rasco-Gaunt, Xifan Sun, George J. Hoerster
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Patent number: 6770800Abstract: The invention provides novel methods of using viral replicase polypeptides and polynucleotides. Included are methods for modulating endoreduplication and increasing crop yield.Type: GrantFiled: February 22, 2000Date of Patent: August 3, 2004Assignees: Pioneer Hi-Bred International, Inc., The Arizona Board of Regents on Behalf of the University of ArizonaInventors: William J. Gordon-Kamm, Keith S. Lowe, Carolyn A. Gregory, George J. Hoerster, Brian A. Larkins, Brian R. Dilkes, Ronald Burnett
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Publication number: 20040034885Abstract: The invention provides novel methods of using viral replicase polypeptides and polynucleotides. Included are methods for modulating endoreduplication and increasing crop yield.Type: ApplicationFiled: August 15, 2003Publication date: February 19, 2004Applicant: Pioneer Hi-Bred International, Inc.Inventors: William J. Gordon-Kamm, Keith S. Lowe, Carolyn A. Gregory, George J. Hoerster, Brian A. Larkins, Brian R. Dilkes, Ronald Burnett
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Publication number: 20030213016Abstract: The invention provides isolated polynucleotides and their encoded proteins that are involved in cell cycle regulation. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and antibody compositions. The present invention provides methods and compositions relating to altering cell cycle protein content and/or composition of plants.Type: ApplicationFiled: January 21, 2003Publication date: November 13, 2003Applicant: Pioneer Hi-Bred International, Inc.Inventors: Keith S. Lowe, Yumin Tao, William J. Gordon-Kamm, Carolyn A. Gregory, John A. McElver, George J. Hoerster, Sheila E. Maddock
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Publication number: 20030167526Abstract: The present invention relates to compositions and methods for identifying transformed cells. The method comprises introducing a visual marker polynucleotide into a plant cell and providing a growth stimulation protein. The compositions comprise a visual marker polynucleotide and a growth stimulation polynucleotide. Also provided are expression cassettes, plant cells, plant parts, and plants comprising same.Type: ApplicationFiled: January 7, 2003Publication date: September 4, 2003Applicant: Pioneer Hi-Bred International Inc.Inventors: Keith S. Lowe, William J. Gordon-Kamm, George J. Hoerster
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Publication number: 20030135889Abstract: The invention provides improved transformation methods. In particular the method provides increased transformation frequency, especially in recalcitrant plants. The method comprises stably transforming a target cell with at least one polynucleotide of interest. The target cell has been previously transformed to stimulate growth of the cell and has gone through at least one cell division.Type: ApplicationFiled: January 6, 2003Publication date: July 17, 2003Applicant: Pioneer Hi-Bred International, Inc.Inventors: Margit C. Ross, Laura A. Church, Patrea M. Hill, William J. Gordon-Kamm, Keith S. Lowe, George J. Hoerster, Dennis L. Bidney
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Publication number: 20030110529Abstract: The invention provides isolated polynucleotides and their encoded proteins that are involved in cell cycle regulation. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and antibody compositions. The present invention provides methods and compositions relating to altering cell cycle protein content and/or composition of plants.Type: ApplicationFiled: December 16, 2002Publication date: June 12, 2003Applicant: Pioneer Hi-Bred International, Inc.Inventors: Keith S. Lowe, Yumin Tao, William J. Gordon-Kamm, Carolyn A. Gregory, George J. Hoerster, John A. McElver
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Patent number: 6518487Abstract: The invention provides isolated polynucleotides and their encoded proteins that are involved in cell cycle regulation. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and antibody compositions. The present invention provides methods and compositions relating to altering cell cycle protein content and/or composition of plants.Type: GrantFiled: September 20, 1999Date of Patent: February 11, 2003Assignee: Pioneer Hi-Bred International, Inc.Inventors: Keith S. Lowe, Yumin Tao, William J. Gordon-Kamm, Carolyn A. Gregory, George J. Hoerster, John A. McElver