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).
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Publication number: 20230408426Abstract: 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: ApplicationFiled: June 1, 2023Publication date: December 21, 2023Applicant: 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
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Patent number: 11703463Abstract: 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: GrantFiled: April 19, 2022Date of Patent: July 18, 2023Assignee: 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
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Publication number: 20220307993Abstract: 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: ApplicationFiled: April 19, 2022Publication date: September 29, 2022Applicant: 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
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Patent number: 11333618Abstract: 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: GrantFiled: June 4, 2020Date of Patent: May 17, 2022Inventors: 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
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Patent number: 10876132Abstract: 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: GrantFiled: March 3, 2016Date of Patent: December 29, 2020Assignees: E I DU PONT DE NEMOURS AND COMPANYInventors: Scott Henry Diehn, Xu Hu, Albert L. Lu, Lu Liu, James Kevin Presnail, Gary A. Sandahl, Ute Schellenberger, Gusui Wu
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Publication number: 20180042242Abstract: 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: ApplicationFiled: March 3, 2016Publication date: February 15, 2018Applicants: PIONEER HI-BRED INTERNATIONAL, INC., E. I. DU PONT DE NEMOURS AND COMPANYInventors: SCOTT HENRY DIEHN, XU HU, ALBERT L. LU, LU LIU, JAMES KEVIN PRESNAIL, GARY A. SANDAHL, UTE SCHELLENBERGER, GUSUI WU
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Patent number: 8865967Abstract: 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: GrantFiled: August 19, 2011Date of Patent: October 21, 2014Assignee: Pioneer Hi Bred International IncInventors: James J. English, Susan L. Grant, Jeffrey S. Pollack, Julia L. Ritland, Gary A. Sandahl
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Publication number: 20120054911Abstract: 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: ApplicationFiled: August 19, 2011Publication date: March 1, 2012Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: James J. English, Susan L. Grant, Jeffrey S. Pollack, Julia L. Ritland, Gary A. Sandahl
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Patent number: 7997415Abstract: 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: GrantFiled: August 21, 2009Date of Patent: August 16, 2011Assignee: Pioneer Hi-Bred International, Inc.Inventors: Joshua L. Mongan, Jason Cope, Gary A. Sandahl
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Publication number: 20100047912Abstract: 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: ApplicationFiled: August 21, 2009Publication date: February 25, 2010Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: JOSHUA L. MONGAN, JASON COPE, GARY A. SANDAHL
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Publication number: 20070178593Abstract: 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: ApplicationFiled: January 17, 2007Publication date: August 2, 2007Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Michael Miller, Gary Sandahl, David Peterson, Bruce Drummond, Mark Chamberlin, Benjamin Bowen, Grace St. Clair, William Gordon-Kamm
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Publication number: 20070016985Abstract: 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: ApplicationFiled: July 18, 2006Publication date: January 18, 2007Applicant: Pioneer Hi-Bred International, Inc.Inventors: Michael Miller, Gary Sandahl, David Peterson, Bruce Drummond, Mark Chamberlin, Benjamin Bowen, Grace St. Clair, William Gordon-Kamm
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Patent number: 6720475Abstract: 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: GrantFiled: August 17, 2000Date of Patent: April 13, 2004Assignee: 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
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Patent number: 6504084Abstract: 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: GrantFiled: April 18, 2000Date of Patent: January 7, 2003Assignee: Pioneer Hi-Bred International, Inc.Inventors: Edmund H. Crane, III, Douglas A. Rice, Carl R. Simmons, John T. Tossberg, Gary A. Sandahl, Lingyu Zhang
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Patent number: 6486382Abstract: 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: GrantFiled: December 20, 1999Date of Patent: November 26, 2002Assignee: 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
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Patent number: 6175058Abstract: 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: GrantFiled: March 5, 1999Date of Patent: January 16, 2001Assignee: 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
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Patent number: 5929301Abstract: 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: GrantFiled: November 18, 1997Date of Patent: July 27, 1999Assignee: Pioneer Hi-Bred InternationalInventors: 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
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Patent number: 5736369Abstract: 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: GrantFiled: June 7, 1995Date of Patent: April 7, 1998Assignee: 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