Patents by Inventor Steven L. Evans

Steven L. Evans 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: 11603535
    Abstract: This disclosure concerns compositions and methods for increasing the expression of a polynucleotide of interest. Some embodiments concern novel transactivation polypeptides and variants thereof that have been identified in plants, and methods of using the same. Particular embodiments concern the use of at least one DNA-binding polypeptide in a fusion protein to target at least one transactivation polypeptide or variant thereof to a specific binding site on a nucleic acid comprising the polynucleotide of interest, such that its expression may be increased.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: March 14, 2023
    Assignee: CORTEVA AGRISCIENCE LLC
    Inventors: Joseph F. Petolino, Jianquan Li, Steven L. Evans, Ryan C. Blue
  • Publication number: 20210087241
    Abstract: This disclosure concerns compositions and methods for increasing the expression of a polynucleotide of interest. Some embodiments concern novel transactivation polypeptides and variants thereof that have been identified in plants, and methods of using the same. Particular embodiments concern the use of at least one DNA-binding polypeptide in a fusion protein to target at least one transactivation polypeptide or variant thereof to a specific binding site on a nucleic acid comprising the polynucleotide of interest, such that its expression may be increased.
    Type: Application
    Filed: October 19, 2020
    Publication date: March 25, 2021
    Applicant: Dow AgroSciences LLC
    Inventors: Joseph F. Petolino, Jianquan Li, Steven L. Evans, Ryan C. Blue
  • Patent number: 10836804
    Abstract: This disclosure concerns compositions and methods for increasing the expression of a polynucleotide of interest. Some embodiments concern novel transactivation polypeptides and variants thereof that have been identified in plants, and methods of using the same. Particular embodiments concern the use of at least one DNA-binding polypeptide in a fusion protein to target at least one transactivation polypeptide or variant thereof to a specific binding site on a nucleic acid comprising the polynucleotide of interest, such that its expression may be increased.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: November 17, 2020
    Assignee: Dow Agrosciences LLC
    Inventors: Joseph Petolino, Jianquan Li, Steven L. Evans, Ryan C. Blue
  • Publication number: 20190330292
    Abstract: This disclosure concerns compositions and methods for increasing the expression of a polynucleotide of interest. Some embodiments concern novel transactivation polypeptides and variants thereof that have been identified in plants, and methods of using the same. Particular embodiments concern the use of at least one DNA-binding polypeptide in a fusion protein to target at least one transactivation polypeptide or variant thereof to a specific binding site on a nucleic acid comprising the polynucleotide of interest, such that its expression may be increased.
    Type: Application
    Filed: May 2, 2019
    Publication date: October 31, 2019
    Inventors: Joseph Petolino, Jianquan Li, Steven L. Evans, Ryan C. Blue
  • Patent number: 10415046
    Abstract: The present invention claims methods for the stable integration of exogenous DNA into a specific locus, E32, in the maize genome through the use of zinc finger nucleases. Maize plants and plant parts that were transformed by the methods of the invention are claimed. The invention is useful for creating desirable traits such as herbicide resistance, herbicide tolerance, insect resistance, insect tolerance, disease resistance, disease tolerance, stress tolerance, and stress resistance in maize The E32 locus represents a superior site for inserting foreign genes because native agronomic phenotypes are not disturbed.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: September 17, 2019
    Assignee: Dow AgroSciences LLC
    Inventors: W. Michael Ainley, James W. Bing, David R. Corbin, Steven L. Evans, Joseph F. Petolino, Lakshmi Sastry-Dent, Steven A. Thompson, Steven R. Webb, Mary E. Welter, Ning Zhou
  • Patent number: 10351610
    Abstract: This disclosure concerns compositions and methods for increasing the expression of a polynucleotide of interest. Some embodiments concern novel transactivation polypeptides and variants thereof that have been identified in plants, and methods of using the same. Particular embodiments concern the use of at least one DNA-binding polypeptide in a fusion protein to target at least one transactivation polypeptide or variant thereof to a specific binding site on a nucleic acid comprising the polynucleotide of interest, such that its expression may be increased.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: July 16, 2019
    Assignee: Dow AgroSciences LLC
    Inventors: Joseph Petolino, Jianquan Li, Steven L Evans, Ryan C Blue
  • Patent number: 10077449
    Abstract: A universal donor polynucleotide is described that can be inserted at targeted locations in plant genomes to facilitate rapid and high throughput integration of a donor molecule within a specific genomic location.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: September 18, 2018
    Assignee: Dow AgroSciences LLC
    Inventors: Lakshmi Sastry-Dent, Steven L. Evans, Ryan C. Blue, Zehui Cao
  • Publication number: 20170364226
    Abstract: A software application for use on a mobile phone or other computerized hardware system for collecting geological core samples and assigning these samples to boxes is disclosed. The mobile application can include a scanner such as a bar code scanner for reading identifying data from boxes storing cores, and also provides the ability to print barcodes for identifying boxes of cores at a printer.
    Type: Application
    Filed: September 5, 2017
    Publication date: December 21, 2017
    Inventor: Steven L. Evans
  • Patent number: 9752154
    Abstract: This invention is related to methods and systems for vector assembly for transgenic plants. A uniform modular process is used to reduce cycle time and the methods and systems provided herein can increase cloning throughput using multiple-well plates, for example 96-well plates. In some embodiments, the methods and systems provided herein eliminate or reduce the need for sequencing confirmation because no PCR is involved in the vector assembly process.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: September 5, 2017
    Assignee: Dow AgroSciences LLC
    Inventors: Sandeep Kumar, Steven L. Evans, Manju Gupta
  • Publication number: 20150176015
    Abstract: This invention is related to methods and systems for vector assembly for transgenic plants. A uniform modular process is used to reduce cycle time and the methods and systems provided herein can increase cloning throughput using multiple-well plates, for example 96-well plates. In some embodiments, the methods and systems provided herein eliminate or reduce the need for sequencing confirmation because no PCR is involved in the vector assembly process.
    Type: Application
    Filed: July 23, 2013
    Publication date: June 25, 2015
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Sandeep Kumar, Steven L. Evans, Manju Gupta
  • Patent number: 8771708
    Abstract: Cysteine-specific radiolabeled Cry1Fa protein retains insecticidal activity against insect pests and binds to insect brush border membrane vesicle receptors in a saturable manner. The biologically-active radiolabeled Cry1Fa protein is useful in competitive binding assays with other Cry toxins.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: July 8, 2014
    Assignee: Dow AgroSciences LLC
    Inventors: Steven L. Evans, Jianquan Li, Joel J. Sheets
  • Publication number: 20140089835
    Abstract: A software application for use on a mobile phone or other computerized hardware system for collecting geological core samples and assigning these samples to boxes is disclosed. The mobile application can include a scanner such as a bar code scanner for reading identifying data from boxes storing cores, and also provides the ability to print barcodes for identifying boxes of cores at a printer.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 27, 2014
    Inventor: Steven L. Evans
  • Patent number: 7939651
    Abstract: This invention provides modified, insecticidal Cry35 proteins with enhanced properties as compared to wild-type Cry35 proteins. The modifications to these proteins were based in part on analysis of the atomic coordinates and three-dimensional (3D) structure of the ˜45 kDa 149B1 protein and other proteins in the Cry35 class. The subject invention also includes polynucleotides that encode these modified proteins, and transgenic plants that produce these modified proteins. This invention further provides methods of controlling plant pests, including rootworms, with these modified proteins. The modified proteins of the subject invention include chimeric toxins involving exchanged segments, domains, and motifs as discussed herein. The subject invention also provides methods of modifying Cry35 proteins.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: May 10, 2011
    Assignee: Dow AgroSciences LLC
    Inventors: H. Ernest Schnepf, Kenneth E. Narva, Steven L. Evans
  • Patent number: 7888069
    Abstract: The subject application provides various compositions of matter directed to West Nile virus (WNV) polypeptides and fragments thereof and polynucleotides, vectors and transformed host cells that encode, direct the expression of, or produce WNV polypeptides as set forth herein. Methods of using the polypeptides and polynucleotides for the production of immune responses in individuals or detecting the presence of WNV specific or neutralizing antibodies are also provided herein.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: February 15, 2011
    Assignees: Dow Agrosciences LLC, The United States of America as represented by the Secretary of Argriculture
    Inventors: Kelley A. Smith, Steven R. Webb, Steven L. Evans, Charles A. Mihaliak, Donald J. Merlo, Geoffrey J. Letchworth
  • Patent number: 7737263
    Abstract: This invention provides modified, insecticidal Cry35 proteins with enhanced properties as compared to wild-type Cry35 proteins. The modifications to these proteins were based in part on analysis of the atomic coordinates and three-dimensional (3D) structure of the ˜45 kDa 149B1 protein and other proteins in the Cry35 class. The subject invention also includes polynucleotides that encode these modified proteins, and transgenic plants that produce these modified proteins. This invention further provides methods of controlling plant pests, including rootworms, with these modified proteins. The modified proteins of the subject invention include chimeric toxins involving exchanged segments, domains, and motifs as discussed herein. The subject invention also provides methods of modifying Cry35 proteins.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: June 15, 2010
    Assignee: Dow Agrosciences LLC
    Inventors: H. Ernest Schnepf, Kenneth E. Narva, Steven L. Evans
  • Publication number: 20090069229
    Abstract: The subject application provides various compositions of matter directed to West Nile virus (WNV) polypeptides and fragments thereof and polynucleotides, vectors and transformed host cells that encode, direct the expression of, or produce WNV polypeptides as set forth herein. Methods of using the polypeptides and polynucleotides for the production of immune responses in individuals or detecting the presence of WNV specific or neutralizing antibodies are also provided herein.
    Type: Application
    Filed: December 21, 2007
    Publication date: March 12, 2009
    Inventors: Kelley A. Smith, Steven R. Webb, Steven L. Evans, Charles A. Mihaliak, Donald J. Merlo, Geoffrey Letchworth
  • Patent number: 6136856
    Abstract: The invention described here concerns the unique utility of fatty acids and their derivatives to eradicate existing fungal and bacterial infections in plants. Also, described herein are combination treatments whereby fatty acids are used to enhance or augment the activity of fungicides, bactericides, and biological control agents.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: October 24, 2000
    Assignee: Mycogen Corporation
    Inventors: Steven D. Savage, Steven L. Evans, Robert A. Haygood, Paul S. Zorner
  • Patent number: 6103768
    Abstract: The invention described here concerns the unique utility of fatty acids and their derivatives to eradicate existing fungal and bacterial infections in plants. Also, described herein are combination treatments whereby fatty acids are used to enhance or augment the activity of fungicides, bactericides, and biological control agents.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: August 15, 2000
    Assignee: Mycogen Corporation
    Inventors: Steven D. Savage, Steven L. Evans, Robert A. Haygood, Paul S. Zorner, Keith Jones
  • Patent number: 6034034
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: March 7, 2000
    Assignee: Mycogen Corp.
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Patent number: D663749
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: July 17, 2012
    Inventor: Steven L Evans