Patents by Inventor Gary A. Sandahl

Gary A. Sandahl 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).

  • Publication number: 20230408426
    Abstract: The present embodiments generally relate to methods of non-destructively imaging plant root damage by insect root herbivores and evaluating the efficacy of insecticidal materials associated with the roots of plants against the insect root herbivores, useful for automated high throughput bioassays.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 21, 2023
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: DENNY JOSEPH BRUCK, KALEY J GADE, ALBERT L LU, TIMOTHY MICHAEL MORIARTY, ANGEL O ORTIZ LOZADA, GARY A SANDAHL, GERARDUS W A M VAN DER HEIJDEN
  • Patent number: 11703463
    Abstract: The present embodiments generally relate to methods of non-destructively imaging plant root damage by insect root herbivores and evaluating the efficacy of insecticidal materials associated with the roots of plants against the insect root herbivores, useful for automated high throughput bioassays.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: July 18, 2023
    Assignee: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Denny Joseph Bruck, Kaley J Gade, Albert L Lu, Timothy Michael Moriarty, Angel O Ortiz Lozada, Gary A Sandahl, Gerardus W A M Van Der Heijden
  • Publication number: 20220307993
    Abstract: The present embodiments generally relate to methods of non-destructively imaging plant root damage by insect root herbivores and evaluating the efficacy of insecticidal materials associated with the roots of plants against the insect root herbivores, useful for automated high throughput bioassays.
    Type: Application
    Filed: April 19, 2022
    Publication date: September 29, 2022
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: DENNY JOSEPH BRUCK, KALEY J GADE, ALBERT L LU, TIMOTHY MICHAEL MORIARTY, ANGEL O ORTIZ LOZADA, GARY A SANDAHL, GERARDUS W A M VAN DER HEIJDEN
  • Patent number: 11333618
    Abstract: The present embodiments generally relate to methods of non-destructively imaging plant root damage by insect root herbivores and evaluating the efficacy of insecticidal materials associated with the roots of plants against the insect root herbivores, useful for automated high throughput bioassays.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: May 17, 2022
    Inventors: Denny Joseph Bruck, Kaley J. Gade, Albert L. Lu, Timothy Michael Moriarty, Angel O. Ortiz Lozada, Gary A. Sandahl, Gerardus W. A. M. Van Der Heijden
  • Patent number: 10876132
    Abstract: Compositions and methods for controlling pests are provided. The methods involve transforming organisms with one or more nucleic acid sequence encoding insecticidal protein(s) and one or more silencing element(s). In particular, the nucleic acid sequences are useful for preparing plants and microorganisms that possess insecticidal activity. Thus, transformed bacteria, plants, plant cells, plant tissues and seeds are provided. Compositions are insecticidal nucleic acids and proteins of bacterial species. The sequences find use in the construction of expression vectors for subsequent transformation into organisms of interest including plants, as probes for the isolation of other homologous (or partially homologous) genes. The molecular and breeding stacks find use in controlling, inhibiting growth or killing Lepidopteran, Coleopteran, Dipteran, fungal, Hemipteran and nematode pest populations and for producing compositions with insecticidal activity.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: December 29, 2020
    Assignees: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Scott Henry Diehn, Xu Hu, Albert L. Lu, Lu Liu, James Kevin Presnail, Gary A. Sandahl, Ute Schellenberger, Gusui Wu
  • Publication number: 20180042242
    Abstract: Compositions and methods for controlling pests are provided. The methods involve transforming organisms with one or more nucleic acid sequence encoding insecticidal protein(s) and one or more silencing element(s). In particular, the nucleic acid sequences are useful for preparing plants and microorganisms that possess insecticidal activity. Thus, transformed bacteria, plants, plant cells, plant tissues and seeds are provided. Compositions are insecticidal nucleic acids and proteins of bacterial species. The sequences find use in the construction of expression vectors for subsequent transformation into organisms of interest including plants, as probes for the isolation of other homologous (or partially homologous) genes. The molecular and breeding stacks find use in controlling, inhibiting growth or killing Lepidopteran, Coleopteran, Dipteran, fungal, Hemipteran and nematode pest populations and for producing compositions with insecticidal activity.
    Type: Application
    Filed: March 3, 2016
    Publication date: February 15, 2018
    Applicants: PIONEER HI-BRED INTERNATIONAL, INC., E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: SCOTT HENRY DIEHN, XU HU, ALBERT L. LU, LU LIU, JAMES KEVIN PRESNAIL, GARY A. SANDAHL, UTE SCHELLENBERGER, GUSUI WU
  • Patent number: 8865967
    Abstract: Compositions and methods for protecting a plant from a pathogen, particularly a fungal pathogen, are provided. Compositions include amino acid sequences, and variants and fragments thereof, for novel variants of antipathogenic polypeptides generated through DNA shuffling that exhibit improved antipathogenic activity. Polynucleotides that encode the antipathogenic polypeptides are also provided. A method for inducing pathogen resistance in a plant using the polynucleotides disclosed herein is further provided. Compositions comprising an antipathogenic polypeptide or a microorganism comprising an antipathogenic polynucleotide of the invention in combination with a carrier and methods of using these compositions to protect a plant from a pathogen are further provided. Plants, plant cells, seeds, and microorganisms comprising an antipathogenic polynucleotide or polypeptide of the invention are also disclosed.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: October 21, 2014
    Assignee: Pioneer Hi Bred International Inc
    Inventors: James J. English, Susan L. Grant, Jeffrey S. Pollack, Julia L. Ritland, Gary A. Sandahl
  • Publication number: 20120054911
    Abstract: Compositions and methods for protecting a plant from a pathogen, particularly a fungal pathogen, are provided. Compositions include amino acid sequences, and variants and fragments thereof, for novel variants of antipathogenic polypeptides generated through DNA shuffling that exhibit improved antipathogenic activity. Polynucleotides that encode the antipathogenic polypeptides are also provided. A method for inducing pathogen resistance in a plant using the polynucleotides disclosed herein is further provided. Compositions comprising an antipathogenic polypeptide or a microorganism comprising an antipathogenic polynucleotide of the invention in combination with a carrier and methods of using these compositions to protect a plant from a pathogen are further provided. Plants, plant cells, seeds, and microorganisms comprising an antipathogenic polynucleotide or polypeptide of the invention are also disclosed.
    Type: Application
    Filed: August 19, 2011
    Publication date: March 1, 2012
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: James J. English, Susan L. Grant, Jeffrey S. Pollack, Julia L. Ritland, Gary A. Sandahl
  • Patent number: 7997415
    Abstract: A method, apparatus, and system for coating, singulating, aligning, ablating, and indexing a number of seeds for testing is described. The apparatus has a carrier designed to hold seeds in a predetermined alignment for ablating a seed sample from a seed portion, the seed portions are indexed to the seed samples. The carrier is then located on the apparatus which delivers the seed samples from the carrier to a collector for laboratory testing.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: August 16, 2011
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Joshua L. Mongan, Jason Cope, Gary A. Sandahl
  • Publication number: 20100047912
    Abstract: A method, apparatus, and system for coating, singulating, aligning, ablating, and indexing a number of seeds for testing is described. The apparatus has a carrier designed to hold seeds in a predetermined alignment for ablating a seed sample from a seed portion, the seed portions are indexed to the seed samples. The carrier is then located on the apparatus which delivers the seed samples from the carrier to a collector for laboratory testing.
    Type: Application
    Filed: August 21, 2009
    Publication date: February 25, 2010
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: JOSHUA L. MONGAN, JASON COPE, GARY A. SANDAHL
  • Publication number: 20070178593
    Abstract: Methods of preparing microparticles for transformation of plant cells with compositions of interest, and compositions comprising the prepared particles and the associated compound(s) of interest are provided. Further provided are methods to deliver compositions of interest to plant cells for transient or stable incorporation in the genome, and any transformed plant cells, plants, and seeds produced thereby.
    Type: Application
    Filed: January 17, 2007
    Publication date: August 2, 2007
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Michael Miller, Gary Sandahl, David Peterson, Bruce Drummond, Mark Chamberlin, Benjamin Bowen, Grace St. Clair, William Gordon-Kamm
  • Publication number: 20070016985
    Abstract: Methods of preparing microparticles for transformation of plant cells with compositions of interest, and compositions comprising the prepared particles and the associated compound(s) of interest are provided. Further provided are methods to deliver compositions of interest to plant cells for transient or stable incorporation in the genome, and any transformed plant cells, plants, and seeds produced thereby.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 18, 2007
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: Michael Miller, Gary Sandahl, David Peterson, Bruce Drummond, Mark Chamberlin, Benjamin Bowen, Grace St. Clair, William Gordon-Kamm
  • Patent number: 6720475
    Abstract: A nucleic acid sequence effectively expressing FLP recombinase in monocot plants, particularly in maize. Stable, transformed maize plants harboring a gene encoding FLP or harboring FRT nucleic acid sequences enable efficient site-directed recombination of nucleic acid sequences in a monocot's genome.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: April 13, 2004
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Christopher L. Baszczynski, Benjamin A. Bowen, Bruce J. Drummond, William J. Gordon-Kamm, David J. Peterson, Gary A. Sandahl, Laura A. Tagliani, Zuo-Yu Zhao, Grace marie St. Clair
  • Patent number: 6504084
    Abstract: The invention provides isolated NPR1 nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering NPR1 concentration and/or composition of plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants. Additionally, the present invention provides promoter elements capable of initiating constitutive expression in a plant. Further, the present invention provides for methods for screening putative activators of a plant resistance pathway.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: January 7, 2003
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Edmund H. Crane, III, Douglas A. Rice, Carl R. Simmons, John T. Tossberg, Gary A. Sandahl, Lingyu Zhang
  • Patent number: 6486382
    Abstract: A method for the production of transgenic plants is provided in which a vector carrying a gene encoding the green fluorescent protein is introduced into cells, the cells are screened for the protein and transformed cells are selected and regenerated. The cellular toxicity of the green fluorescent protein is circumvented by regulating expression of the gene encoding the protein or directing the protein to a subcellular compartment where it is not toxic to the cell. DNA constructs are provided for cell transformation in which the expression of a gene encoding the green fluorescent protein is placed under the control of an inducible promoter. In addition, DNA constructs are provided in which a nucleotide sequence encoding the green fluorescent protein is operably linked to a signal sequence which directs the expressed protein to a subcellular compartment where the protein is not toxic to the cell.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: November 26, 2002
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: William Gordan-Kamm, Dorothy A. Pierce, Benjamin Bowen, Dennis Bidney, Margit Ross, Christopher Scelonge, Michael D. Miller, Gary Sandahl, Lijuan Wang
  • Patent number: 6175058
    Abstract: A nucleic acid sequence effectively expressing FLP recombinase in monocot plants, particularly in maize. Stable, transformed maize plants harboring a gene encoding FLP or harboring FRT nucleic acid sequences enable efficient site-directed recombination of nucleic acid sequences in a monocot's genome.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: January 16, 2001
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Christopher L. Baszczynski, Benjamin A. Bowen, Bruce J. Drummond, William J. Gordon-Kamm, David J. Peterson, Gary A. Sandahl, Laura A. Tagliani, Zuo-Yu Zhao, Grace marie St. Clair
  • Patent number: 5929301
    Abstract: A nucleic acid sequence effectively expressing FLP recombinase in monocot plants, particularly in maize. Stable, transformed maize plants harboring a gene encoding FLP or harboring FRT nucleic acid sequences enable efficient site-directed recombination of nucleic acid sequences in a monocot's genome.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: July 27, 1999
    Assignee: Pioneer Hi-Bred International
    Inventors: Christopher L. Baszcynski, Benjamin A. Bowen, Bruce J. Drummond, William J. Gordon-Kamm, David J. Peterson, Gary A. Sandahl, Laura A. Tagliani, Zuo-Yu Zhao
  • Patent number: 5736369
    Abstract: To obtain a transgenic cereal plant which is stably transformed, an exposed cereal meristem is subjected to biolistic bombardment in order to target non-differentiated meristem cells for transformation. Immature embryos at the early proembryo, mid proembryo, late proembryo, transitional or early coleoptilar stage are harvested for biolistic bombardment. The meristem tissue or cells fated to contribute to the meristem then are manipulated in order to enlarge transgenic sectors, either through selection and/or through effecting a proliferation from the tissue of shoots or multiple meristems per se. The shoot population thus obtained then is screened, by means of a nonlethal enrichment assay, to identify either chimeric sectors that will contribute to germline transmission, or non-sectored, L2 periclinal chimeras that will by definition transmit to progeny.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 7, 1998
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Benjamin A. Bowen, Keith Lowe, Margit C. Ross, Gary A. Sandahl, Dwight T. Tomes, William J. Gordon-Kamm, David D. Songstad