Patents by Inventor Howard Hershey
Howard Hershey 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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Patent number: 7759543Abstract: Nucleotide sequences mediating male fertility in plants are described, with DNA molecule and amino acid sequences set forth. Promoter sequences and their essential regions are also identified. The nucleotide sequences are useful in mediating male fertility in plants. In one such method, the homozygous recessive condition of male sterility causing alleles is maintained after crossing with a second plant, where the second plant contains a restoring transgene construct having a nucleotide sequence which reverses the homozygous condition. The restoring sequence is linked with a hemizygous sequence encoding a product inhibiting formation or function of male gametes. The maintainer plant produces only viable male gametes which do not contain the restoring transgene construct. Increase of the maintainer plant is also provided by self-fertilization, and selection for seed or plants which contain the construct.Type: GrantFiled: September 22, 2009Date of Patent: July 20, 2010Assignee: Pioneer Hi-Bred International, Inc.Inventors: Marc Albertsen, Tim Fox, Gary Huffman, Mary Trimnell, Youngzhon Wu, Howard Hershey
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Publication number: 20100122367Abstract: Pairs of plants are provided in which complementing constructs result in suppression of a parental phenotype in the progeny. Methods to generate and maintain such plants and methods of use of said plants, are provided, including use of parental plants to produce sterile plants for hybrid seed production. Also provided are methods for maintaining a homozygous recessive condition and for repressing transmission of transgenes.Type: ApplicationFiled: January 18, 2010Publication date: May 13, 2010Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Andrew Mark Cigan, Timothy W. Fox, Howard Hershey, Erica Unger, Yongzhong Wu
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Patent number: 7696405Abstract: Pairs of plants are provided in which complementing constructs result in suppression of a parental phenotype in the progeny. Methods to generate and maintain such plants, and methods of use of plants generated or maintained by the methods, are provided, including use of parental plants to produce sterile plants for hybrid seed production. Also provided are regulatory elements for pollen-preferred expression of linked polynucleotides. Also provided are methods for identifying gene function, and methods for repressing transmission of transgenes.Type: GrantFiled: December 16, 2004Date of Patent: April 13, 2010Assignee: Pioneer Hi-Bred International, Inc.Inventors: Andrew Mark Cigan, Timothy W. Fox, Howard Hershey, Erica Unger, Yongzhong Wu
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Publication number: 20100017905Abstract: Nucleotide sequences mediating male fertility in plants are described, with DNA molecule and amino acid sequences set forth. Promoter sequences and their essential regions are also identified. The nucleotide sequences are useful in mediating male fertility in plants. In one such method, the homozygous recessive condition of male sterility causing alleles is maintained after crossing with a second plant, where the second plant contains a restoring transgene construct having a nucleotide sequence which reverses the homozygous condition. The restoring sequence is linked with a hemizygous sequence encoding a product inhibiting formation or function of male gametes. The maintainer plant produces only viable male gametes which do not contain the restoring transgene construct. Increase of the maintainer plant is also provided by self-fertilization, and selection for seed or plants which contain the construct.Type: ApplicationFiled: September 22, 2009Publication date: January 21, 2010Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Marc C. Albertsen, Tim Fox, Gary Huffman, Mary Trimnell, Yongzhong Wu, Howard Hershey
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Publication number: 20100017906Abstract: Nucleotide sequences mediating male fertility in plants are described, with DNA molecule and amino acid sequences set forth. Promoter sequences and their essential regions are also identified. The nucleotide sequences are useful in mediating male fertility in plants. In one such method, the homozygous recessive condition of male sterility causing alleles is maintained after crossing with a second plant, where the second plant contains a restoring transgene construct having a nucleotide sequence which reverses the homozygous condition. The restoring sequence is linked with a hemizygous sequence encoding a product inhibiting formation or function of male gametes. The maintainer plant produces only viable male gametes which do not contain the restoring transgene construct. Increase of the maintainer plant is also provided by self-fertilization, and selection for seed or plants which contain the construct.Type: ApplicationFiled: September 22, 2009Publication date: January 21, 2010Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Marc C. Albertsen, Tim Fox, Gary Huffman, Mary Trimnell, Yongzhong Wu, Howard Hershey
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Publication number: 20100017907Abstract: Nucleotide sequences mediating male fertility in plants are described, with DNA molecule and amino acid sequences set forth. Promoter sequences and their essential regions are also identified. The nucleotide sequences are useful in mediating male fertility in plants. In one such method, the homozygous recessive condition of male sterility causing alleles is maintained after crossing with a second plant, where the second plant contains a restoring transgene construct having a nucleotide sequence which reverses the homozygous condition. The restoring sequence is linked with a hemizygous sequence encoding a product inhibiting formation or function of male gametes. The maintainer plant produces only viable male gametes which do not contain the restoring transgene construct. Increase of the maintainer plant is also provided by self-fertilization, and selection for seed or plants which contain the construct.Type: ApplicationFiled: September 22, 2009Publication date: January 21, 2010Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Marc C. Albertsen, Tim Fox, Gary Huffman, Mary Trimnell, Yongzhong Wu, Howard Hershey
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Patent number: 7612251Abstract: Nucleotide sequences mediating male fertility in plants are described, with DNA molecule and amino acid sequences set forth. Promoter sequences and their essential regions are also identified. The nucleotide sequences are useful in mediating male fertility in plants. In one such method, the homozygous recessive condition of male sterility causing alleles is maintained after crossing with a second plant, where the second plant contains a restoring transgene construct having a nucleotide sequence which reverses the homozygous condition. The restoring sequence is linked with a hemizygous sequence encoding a product inhibiting formation or function of male gametes. The maintainer plant produces only viable male gametes which do not contain the restoring transgene construct. Increase of the maintainer plant is also provided by self-fertilization, and selection for seed or plants which contain the construct.Type: GrantFiled: June 20, 2006Date of Patent: November 3, 2009Assignee: Pioneer Hi-Bred International, Inc.Inventors: Marc C. Albertsen, Tim Fox, Gary Huffman, Mary Trimnell, Yongzhong Wu, Howard Hershey
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Publication number: 20090183284Abstract: Nucleotide sequences mediating male fertility in plants are described, with DNA molecule and amino acid sequences set forth. Promoter sequences and their essential regions are also identified. The nucleotide sequences are useful in mediating male fertility in plants. In one such method, the homozygous recessive condition of male sterility causing alleles is maintained after crossing with a second plant, where the second plant contains a restoring transgene construct having a nucleotide sequence which reverses the homozygous condition. The restoring sequence is linked with a hemizygous sequence encoding a product inhibiting formation or function of male gametes. The maintainer plant produces only viable male gametes which do not contain the restoring transgene construct. Increase of the maintainer plant is also provided by self-fertilization, and selection for seed or plants which contain the construct.Type: ApplicationFiled: March 9, 2009Publication date: July 16, 2009Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Marc C. Albertsen, Tim Fox, Gary Huffman, Mary Trimnell, Youngzhong Wu, Howard Hershey
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Publication number: 20080244765Abstract: Pollination process is disrupted by use of a pollination-disruption polynucleotide that renders the pollen unable to fertilize a sexually compatible ovule. The non-lethal nature of the pollen disruption polynucleotide is advantageous, particularly when operably linked to a transgenic polynucleotide of interest and prevents transmission of the polynucleotide through pollen. non-lethal markers are employed in an embodiment in which transgenic and non-transgenic seed can be sorted. A recombinase excision system is employed in an embodiment to activate the pollen disruption polynucleotide.Type: ApplicationFiled: April 3, 2008Publication date: October 2, 2008Applicant: Pioneer Hi-Bred International, Inc.Inventors: Zuo-Yu Zhao, Youngzhong Wu, Michael Lassner, Howard Hershey
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Publication number: 20070300323Abstract: The invention provides isolated NUE (nitrogen utilization efficiency) nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering nitrogen utilization and/or uptake in plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants.Type: ApplicationFiled: January 30, 2007Publication date: December 27, 2007Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Howard Hershey, Carl Simmons, Dale Loussaert
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Publication number: 20070169227Abstract: Pairs of plants are provided in which complementing constructs result in suppression of a parental phenotype in the progeny. Methods to generate and maintain such plants, and methods of use of said plants, are provided, including use of parental plants to produce sterile plants for hybrid seed production. Also provided are regulatory elements for pollen-preferred expression of linked polynucleotides. Also provided are methods for identifying gene function, methods for testing allelic variants, and methods for repressing transmission of transgenes.Type: ApplicationFiled: March 14, 2007Publication date: July 19, 2007Applicant: PIONEER HI-BRED INTERNATIONAL INC.Inventors: Andrew Cigan, Timothy Fox, Howard Hershey, Erica Unger, Yongzhong Wu
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Publication number: 20070044176Abstract: This invention relates to isolated nucleic acid fragments encoding high affinity nitrate transport components. The invention also relates to the construction of recombinant DNA constructs encoding all or a portion of nitrate transport components, in sense or antisense orientation, wherein expression of the recombinant DNA construct may alter levels of the nitrate transport components in a transformed host cell.Type: ApplicationFiled: August 15, 2006Publication date: February 22, 2007Inventors: Stephen Allen, Kanwarpal Dhugga, Kevin Fengler, Howard Hershey, Victor Llaca, Dale Loussaert, Lu Liu, Xiaomu Niu, Haiyin Wang
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Publication number: 20060288440Abstract: Nucleotide sequences mediating male fertility in plants are described, with DNA molecule and amino acid sequences set forth. Promoter sequences and their essential regions are also identified. The nucleotide sequences are useful in mediating male fertility in plants. In one such method, the homozygous recessive condition of male sterility causing alleles is maintained after crossing with a second plant, where the second plant contains a restoring transgene construct having a nucleotide sequence which reverses the homozygous condition. The restoring sequence is linked with a hemizygous sequence encoding a product inhibiting formation or function of male gametes. The maintainer plant produces only viable male gametes which do not contain the restoring transgene construct. Increase of the maintainer plant is also provided by self-fertilization, and selection for seed or plants which contain the construct.Type: ApplicationFiled: June 20, 2006Publication date: December 21, 2006Applicant: Pioneer Hi-Bred International, Inc.Inventors: Marc Albertsen, Tim Fox, Gary Huffman, Mary Trimnell, Yongzhong Wu, Howard Hershey
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Publication number: 20060064773Abstract: The present invention provides polynucleotides and related polypeptides of the protein CNR. The invention provides genomic sequence for the CNR gene. CNR is responsible for controlling cell number.Type: ApplicationFiled: June 15, 2005Publication date: March 23, 2006Applicant: Pioneer Hi-Bred International, Inc.Inventors: Mei Guo, Carl Simmons, Howard Hershey
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Publication number: 20050246796Abstract: Pairs of plants are provided in which complementing constructs result in suppression of a parental phenotype in the progeny. Methods to generate and maintain such plants, and methods of use of said plants, are provided, including use of parental plants to produce sterile plants for hybrid seed production. Also provided are regulatory elements for pollen-preferred expression of linked polynucleotides. Also provided are methods for identifying gene function, and methods for repressing transmission of transgenes.Type: ApplicationFiled: December 16, 2004Publication date: November 3, 2005Applicant: Pioneer Hi-Bred International, Inc.Inventors: Andrew Cigan, Timothy Fox, Howard Hershey, Erica Unger, Yongzhong Wu