Patents by Inventor Timothy G. Helentjaris

Timothy G. Helentjaris 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).

  • Maize cellulose synthases and uses thereof
    Patent number: 7982009
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase levels in plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants comprising said nucleic acids.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: July 19, 2011
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Kanwarpal S Dhugga, Haiyin Wang, Dwight Tomes, Timothy G Helentjaris
  • Maize Cellulose Synthases and Uses Thereof
    Publication number: 20110027855
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase levels in plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants comprising said nucleic acids.
    Type: Application
    Filed: October 13, 2010
    Publication date: February 3, 2011
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Kanwarpal S. Dhugga, Haiyin Wang, Dwight Tomes, Timothy G. Helentjaris
  • AP2 DOMAIN TRANSCRIPTION FACTOR ODP2 (OVULE DEVELOPMENT PROTEIN 2) AND METHODS OF USE
    Publication number: 20110010795
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Application
    Filed: July 15, 2009
    Publication date: January 13, 2011
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: William J. Gordon-Kamm, Timothy G. Helentjaris, Keith S. Lowe, Bo Shen, Mitchell C. Tarczynski, Peizhong Zheng
  • Maize cellulose synthases and uses thereof
    Patent number: 7851597
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase levels in plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants comprising said nucleic acids.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: December 14, 2010
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Kanwarpal S Dhugga, Haiyin Wang, Dwight Tomes, Timothy G Helentjaris
  • Maize cellulose synthases and uses thereof
    Patent number: 7838632
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase levels in plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants comprising said nucleic acids.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: November 23, 2010
    Assignee: Pioneer Hi-Bred International, Inc
    Inventors: Kanwarpal S Dhugga, Haiyin Wang, Dwight Tomes, Timothy G Helentjaris
  • Maize Cellulose Synthases and Uses Thereof
    Publication number: 20100223696
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase levels in plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants comprising said nucleic acids.
    Type: Application
    Filed: May 19, 2010
    Publication date: September 2, 2010
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Kanwarpal S. Dhugga, Haiyin Wang, Dwight Tomes, Timothy G. Helentjaris
  • Maize cellulose synthase encoding sequences and uses thereof
    Patent number: 7692061
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase concentration and/or composition of plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: April 6, 2010
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Kanwarpal S Dhugga, Timothy G Helentjaris, Benjamin A Bowen, Xun Wang
  • AP2 DOMAIN TRANSCRIPTION FACTOR ODP2 (OVULE DEVELOPMENT PROTEIN 2) AND METHODS OF USE
    Publication number: 20090328252
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Application
    Filed: July 15, 2009
    Publication date: December 31, 2009
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: William J. Gordon-Kamm, Timothy G. Helentjaris, Keith S. Lowe, Bo Shen, Mitchell C. Tarczynski, Peizhong Zheng
  • Polycomb genes from maize—and
    Patent number: 7626078
    Abstract: The present invention relates to polycomb genes isolated from Zea mays, and host cells and plants transformed with a Mez2 gene.
    Type: Grant
    Filed: January 13, 2008
    Date of Patent: December 1, 2009
    Inventors: Shawn M Kaeppler, Nathan A. Springer, Timothy G. Helentjaris, Roland L. Phillips
  • Maize Cellulose Synthases and Uses Thereof
    Publication number: 20090253177
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase levels in plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants comprising said nucleic acids.
    Type: Application
    Filed: June 17, 2009
    Publication date: October 8, 2009
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Kanwarpal S. Dhugga, Haiyin Wang, Dwight Tomes, Timothy G. Helentjaris
  • Early Endosperm Promoter eep2
    Publication number: 20090227013
    Abstract: This invention relates generally to the field of plant molecular biology. More specifically, this invention relates to methods and reagents for the temporally- and/or spatially-regulated expression of genes, particularly in plant seeds and related female reproductive tissue. Compositions comprise novel nucleotide sequences for a seed-preferred promoter known as eep2. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequences disclosed herein is provided. The method comprises transforming a plant cell to comprise a heterologous nucleotide sequence operably linked to one of the promoters of the present invention and regenerating a stably transformed plant from the transformed plant cell.
    Type: Application
    Filed: May 11, 2009
    Publication date: September 10, 2009
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Timothy G. Helentjaris, Xiaomu Niu
  • Cellulose synthase encoding nucleic acids and uses thereof
    Patent number: 7582808
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase concentration and/or composition of plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: September 1, 2009
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Kanwarpal S Dhugga, Timothy G Helentjaris, Benjamin A Bowen, Xun Wang
  • Maize cellulose synthases and uses thereof
    Patent number: 7579443
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase levels in plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants comprising said nucleic acids.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: August 25, 2009
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Kanwarpal S Dhugga, Haiyin Wang, Dwight Tomes, Timothy G Helentjaris
  • AP2 domain transcription factor ODP2 (ovule development protein 2) and methods of use
    Patent number: 7579529
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: August 25, 2009
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: William J. Gordon-Kamm, Timothy G. Helentjaris, Keith S. Lowe, Bo Shen, Mitchell C. Tarczynski, Peizhong Zheng
  • Maize Cellulose Synthases and Uses Thereof
    Publication number: 20090151017
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase concentration and/or composition of plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants.
    Type: Application
    Filed: October 30, 2008
    Publication date: June 11, 2009
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Kanwarpal S. Dhugga, Timothy G. Helentjaris, Benjamin A. Bowen, Xun Wang
  • Regulatory Elements Associated with CBF Transcription Factors of Maize
    Publication number: 20090138986
    Abstract: Compositions and methods for regulating expression of heterologous polynucleotide sequences in a plant are provided. Compositions are novel nucleotide sequences comprising an isolated stress-induced promoter natively linked to the maize CBF1 or CBF2 coding region. A method for expressing a heterologous polynucleotide sequence in a plant using the regulatory sequences disclosed herein is provided. The method comprises transforming a plant cell to comprise a heterologous polynucleotide sequence operably linked to one or more of the regulatory sequences of the present invention and regenerating a stably transformed plant from the transformed plant cell.
    Type: Application
    Filed: September 10, 2008
    Publication date: May 28, 2009
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Shoba Sivasankar, Timothy G. Helentjaris
  • Modulation of cytokinin activity in plants
    Patent number: 7531723
    Abstract: This invention relates generally to the field of plant molecular biology. More specifically, this invention relates to methods and reagents for the temporally- and/or spatially-regulated expression of genes that affect metabolically effective levels of cytokinins in plants, particularly in plant seeds and related female reproductive tissue. This invention further relates to transgenic plants having enhanced levels of cytokinin expression wherein the transgenic plant exhibits useful characteristics, such as improved seed size, decreased tip kernel abortion, increased seed set during unfavorable environmental conditions, or stability of yield. The present invention also provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions comprise novel nucleotide sequences for seed-preferred promoters known as eep1 and eep2. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequences disclosed herein is provided.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: May 12, 2009
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jeffrey E. Habben, Chris Zinselmeier, Dwight T. Tomes, Timothy G. Helentjaris
  • Maize cellulose synthases and uses thereof
    Patent number: 7524933
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase levels in plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants comprising said nucleic acids.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: April 28, 2009
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Kanwarpal S Dhugga, Haiyin Wang, Dwight Tomes, Timothy G Helentjaris
  • Maize Cellulose Synthases and Uses Thereof
    Publication number: 20090094718
    Abstract: The invention provides isolated cellulose synthase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering cellulose synthase levels in plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants comprising said nucleic acids.
    Type: Application
    Filed: November 25, 2008
    Publication date: April 9, 2009
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Kanwarpal S. Dhugga, Haiyin Wang, Dwight Tomes, Timothy G. Helentjaris
  • Enhanced Silk Exsertion Under Stress
    Publication number: 20080307545
    Abstract: The invention provides methods for enhancing maize silk exsertion under stress conditions and compositions relating to such methods, including nucleic acids and proteins. The invention further provides recombinant expression cassettes, host cells, and transgenic plants.
    Type: Application
    Filed: April 11, 2008
    Publication date: December 11, 2008
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Christopher Zinselmeier, Timothy G. Helentjaris