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).

  • Patent number: 11330776
    Abstract: 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: Grant
    Filed: August 26, 2016
    Date of Patent: May 17, 2022
    Inventors: 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
  • Publication number: 20220124998
    Abstract: 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: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Applicant: 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
  • Publication number: 20210062203
    Abstract: 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: Application
    Filed: March 11, 2019
    Publication date: March 4, 2021
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: Ajith ANAND, William James GORDON-KAMM, George J. HOERSTER, Keith S. LOWE, Kevin E. MCBRIDE
  • Publication number: 20110167522
    Abstract: 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: Application
    Filed: July 28, 2010
    Publication date: July 7, 2011
    Applicant: 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
  • Publication number: 20100285591
    Abstract: 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: Application
    Filed: July 27, 2010
    Publication date: November 11, 2010
    Applicant: 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
  • Patent number: 7799566
    Abstract: 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: Grant
    Filed: November 16, 2006
    Date of Patent: September 21, 2010
    Assignee: 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
  • Publication number: 20080242624
    Abstract: 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: Application
    Filed: November 16, 2006
    Publication date: October 2, 2008
    Applicant: 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
  • Patent number: 7309813
    Abstract: 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: Grant
    Filed: October 28, 2004
    Date of Patent: December 18, 2007
    Assignee: 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
  • Patent number: 7220894
    Abstract: 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: Grant
    Filed: December 22, 2003
    Date of Patent: May 22, 2007
    Assignees: Pioneer Hi-Bred International, Inc., E.I. du Pont de Nemours and Company
    Inventors: Keith S. Lowe, William J. Gordon-Kamm, Theodore M. Klein, Sonriza Rasco-Gaunt, Xifan Sun, George J. Hoerster
  • Patent number: 7166765
    Abstract: 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: Grant
    Filed: December 22, 2003
    Date of Patent: January 23, 2007
    Assignees: Pioneer Hi-Bred International, Inc., E. I. du Pont de Nemours and Company
    Inventors: 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
  • Patent number: 6825397
    Abstract: 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: Grant
    Filed: November 8, 1999
    Date of Patent: November 30, 2004
    Assignees: Pioneer Hi-Bred International, Inc., E.I. du Pont de Nemours and Company
    Inventors: 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
  • Publication number: 20040168217
    Abstract: 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: Application
    Filed: December 22, 2003
    Publication date: August 26, 2004
    Applicants: Pioneer Hi-Bred International, Inc., E.I. du Pont de Nemours and Company
    Inventors: Keith S. Lowe, William J. Gordon-Kamm, Theodore M. Klein, Sonriza Rasco-Gaunt, Xifan Sun, George J. Hoerster
  • Patent number: 6770800
    Abstract: The invention provides novel methods of using viral replicase polypeptides and polynucleotides. Included are methods for modulating endoreduplication and increasing crop yield.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: August 3, 2004
    Assignees: Pioneer Hi-Bred International, Inc., The Arizona Board of Regents on Behalf of the University of Arizona
    Inventors: William J. Gordon-Kamm, Keith S. Lowe, Carolyn A. Gregory, George J. Hoerster, Brian A. Larkins, Brian R. Dilkes, Ronald Burnett
  • Publication number: 20040034885
    Abstract: The invention provides novel methods of using viral replicase polypeptides and polynucleotides. Included are methods for modulating endoreduplication and increasing crop yield.
    Type: Application
    Filed: August 15, 2003
    Publication date: February 19, 2004
    Applicant: 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
  • Publication number: 20030213016
    Abstract: 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: Application
    Filed: January 21, 2003
    Publication date: November 13, 2003
    Applicant: 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
  • Publication number: 20030167526
    Abstract: 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: Application
    Filed: January 7, 2003
    Publication date: September 4, 2003
    Applicant: Pioneer Hi-Bred International Inc.
    Inventors: Keith S. Lowe, William J. Gordon-Kamm, George J. Hoerster
  • Publication number: 20030135889
    Abstract: 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: Application
    Filed: January 6, 2003
    Publication date: July 17, 2003
    Applicant: 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
  • Publication number: 20030110529
    Abstract: 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: Application
    Filed: December 16, 2002
    Publication date: June 12, 2003
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: Keith S. Lowe, Yumin Tao, William J. Gordon-Kamm, Carolyn A. Gregory, George J. Hoerster, John A. McElver
  • Patent number: 6518487
    Abstract: 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: Grant
    Filed: September 20, 1999
    Date of Patent: February 11, 2003
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Keith S. Lowe, Yumin Tao, William J. Gordon-Kamm, Carolyn A. Gregory, George J. Hoerster, John A. McElver
  • Patent number: 6512165
    Abstract: The invention provides improved plant transformation methods. In particular the method provides increased transformation freequency, 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: Grant
    Filed: July 10, 2000
    Date of Patent: January 28, 2003
    Assignee: 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