Patents by Inventor Cheryl M. Defontes
Cheryl M. Defontes 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: 11746129Abstract: Compositions and methods for controlling plant pests are disclosed. In particular, novel engineered hybrid insecticidal proteins having toxicity to at least European corn borer are provided. By fusing unique combinations of complete or partial variable regions and conserved blocks of at least two different Bacillus thuringiensis (Bt) Cry proteins or a modified Cry proteins a hybrid insecticidal protein having activity against at least European corn borer is designed. Nucleic acid molecules encoding the novel hybrid proteins are also provided. Methods of making the hybrid proteins and methods of using the hybrid proteins and nucleic acids encoding the hybrid proteins of the invention, for example in transgenic plants to confer protection from insect damage are also disclosed.Type: GrantFiled: February 3, 2021Date of Patent: September 5, 2023Assignee: Syngenta Participations AGInventors: Hope Hart, Jeng Shong Chen, Cheryl M. DeFontes
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Publication number: 20210155661Abstract: Compositions and methods for controlling plant pests are disclosed. In particular, novel engineered hybrid insecticidal proteins having toxicity to at least European corn borer are provided. By fusing unique combinations of complete or partial variable regions and conserved blocks of at least two different Bacillus thuringiensis (Bt) Cry proteins or a modified Cry proteins a hybrid insecticidal protein having activity against at least European corn borer is designed. Nucleic acid molecules encoding the novel hybrid proteins are also provided. Methods of making the hybrid proteins and methods of using the hybrid proteins and nucleic acids encoding the hybrid proteins of the invention, for example in transgenic plants to confer protection from insect damage are also disclosed.Type: ApplicationFiled: February 3, 2021Publication date: May 27, 2021Applicant: Syngenta Participations AGInventors: Hope HART, Jeng Shong CHEN, Cheryl M. DEFONTES
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Publication number: 20190112343Abstract: Compositions and methods for controlling plant pests are disclosed. In particular, novel engineered hybrid insecticidal proteins having toxicity to at least European corn borer are provided. By fusing unique combinations of complete or partial variable regions and conserved blocks of at least two different Bacillus thuringiensis (Bt) Cry proteins or a modified Cry proteins a hybrid insecticidal protein having activity against at least European corn borer is designed. Nucleic acid molecules encoding the novel hybrid proteins are also provided. Methods of making the hybrid proteins and methods of using the hybrid proteins and nucleic acids encoding the hybrid proteins of the invention, for example in transgenic plants to confer protection from insect damage are also disclosed.Type: ApplicationFiled: December 7, 2018Publication date: April 18, 2019Applicant: Syngenta Participations AGInventors: Hope Hart, Jeng Shong Chen, Cheryl M. Defontes
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Patent number: 10239921Abstract: Compositions and methods for controlling plant pests are disclosed. In particular, novel engineered hybrid insecticidal proteins (eHIPs) having toxicity to at least corn rootworm are provided. By fusing unique combinations of complete or partial variable regions and conserved blocks of at least two different Bacillus thuringiensis (Bt) Cry proteins or a modified Cry proteins an eHIP having activity against corn rootworm is designed. Nucleic acid molecules encoding the novel eHIPs are also provided. Methods of making the eHIPs and methods of using the eHIPs and nucleic acids encoding the eHIPs of the invention, for example in transgenic plants to confer protection from insect damage are also disclosed.Type: GrantFiled: May 6, 2016Date of Patent: March 26, 2019Assignee: Syngenta Participations AGInventors: Hope Hart, Jeng Shong Chen, Cheryl M. Defontes, Frederick Walters
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Patent number: 9522937Abstract: Compositions and methods for controlling plant pests are disclosed. In particular, novel engineered hybrid insecticidal proteins (eHIPs) having toxicity to at least corn rootworm are provided. By fusing unique combinations of complete or partial variable regions and conserved blocks of at least two different Bacillus thuringiensis (Bt) Cry proteins or a modified Cry proteins an eHIP having activity against corn rootworm is designed. Nucleic acid molecules encoding the novel eHIPs are also provided. Methods of making the eHIPs and methods of using the eHIPs and nucleic acids encoding the eHIPs of the invention, for example in transgenic plants to confer protection from insect damage are also disclosed.Type: GrantFiled: September 21, 2012Date of Patent: December 20, 2016Assignee: Syngenta Participations AGInventors: Hope Hart, Jeng Shong Chen, Cheryl M. Defontes, Frederick Walters
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Publication number: 20160304568Abstract: Compositions and methods for controlling plant pests are disclosed. In particular, novel engineered hybrid insecticidal proteins (eHIPs) having toxicity to at least corn rootworm are provided. By fusing unique combinations of complete or partial variable regions and conserved blocks of at least two different Bacillus thuringiensis (Bt) Cry proteins or a modified Cry proteins an eHIP having activity against corn rootworm is designed. Nucleic acid molecules encoding the novel eHIPs are also provided. Methods of making the eHIPs and methods of using the eHIPs and nucleic acids encoding the eHIPs of the invention, for example in transgenic plants to confer protection from insect damage are also disclosed.Type: ApplicationFiled: May 6, 2016Publication date: October 20, 2016Applicant: Syngenta Participations AGInventors: Hope Hart, Jeng Shong CHEN, Cheryl M. DEFONTES
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Publication number: 20160304569Abstract: Compositions and methods for controlling plant pests are disclosed. In particular, novel engineered hybrid insecticidal proteins (eHIPs) having toxicity to at least corn rootworm are provided. By fusing unique combinations of complete or partial variable regions and conserved blocks of at least two different Bacillus thuringiensis (Bt) Cry proteins or a modified Cry proteins an eHIP having activity against corn rootworm is designed. Nucleic acid molecules encoding the novel eHIPs are also provided. Methods of making the eHIPs and methods of using the eHIPs and nucleic acids encoding the eHIPs of the invention, for example in transgenic plants to confer protection from insect damage are also disclosed.Type: ApplicationFiled: May 6, 2016Publication date: October 20, 2016Applicant: Syngenta Participations AGInventors: Hope Hart, Jeng Shong CHEN, Cheryl M. DEFONTES
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Patent number: 8759620Abstract: Compositions and methods for controlling plant pests are disclosed. In particular, transgenic maize plants comprising nucleic acid molecules encoding modified Cry3A toxins having increased toxicity to western corn rootworm are provided. Such modified Cry3A toxins, into which a non-naturally occurring protease recognition site is inserted, are expressed at levels in transgenic plants to inhibit insect feeding damage and cause insect mortality.Type: GrantFiled: June 12, 2013Date of Patent: June 24, 2014Assignee: Syngenta Participations AGInventors: Jeng Shong Chen, Cheryl M. Defontes
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Publication number: 20140090104Abstract: Compositions and methods for controlling plant pests are disclosed. In particular, novel engineered hybrid insecticidal proteins (eHIPs) having toxicity to at least corn rootworm are provided. By fusing unique combinations of complete or partial variable regions and conserved blocks of at least two different Bacillus thuringiensis (Bt) Cry proteins or a modified Cry proteins an eHIP having activity against corn rootworm is designed. Nucleic acid molecules encoding the novel eHIPs are also provided. Methods of making the eHIPs and methods of using the eHIPs and nucleic acids encoding the eHIPs of the invention, for example in transgenic plants to confer protection from insect damage are also disclosed.Type: ApplicationFiled: September 21, 2012Publication date: March 27, 2014Applicant: SYNGENTA PARTICIPATIONS AGInventors: Hope HART, Jeng Shong CHEN, Cheryl M. DEFONTES, Frederick WALTERS
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Publication number: 20130260994Abstract: Compositions and methods for controlling plant pests are disclosed. In particular, transgenic maize plants comprising nucleic acid molecules encoding modified Cry3A toxins having increased toxicity to western corn rootworm are provided. Such modified Cry3A toxins, into which a non-naturally occurring protease recognition site is inserted, are expressed at levels in transgenic plants to inhibit insect feeding damage and cause insect mortality.Type: ApplicationFiled: June 12, 2013Publication date: October 3, 2013Applicant: SYNGENTA PARTICIPATIONS AGInventors: Jeng Shong CHEN, Cheryl M. DEFONTES
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Patent number: 8247369Abstract: Methods for making a modified Cry3A toxin are disclosed. Such methods include the insertion of a protease recognition site that is recognized by a gut protease of a target insect, such as corn rootworm, into at least one position of a Cry3A toxin so that a modified Cry3A toxin is thus designed. The coding sequence of the modified Cry3A toxin may be transformed into a host cell and the host cell grown under conditions that allow the host cell to produce the modified Cry3A toxin. The host cell may be a plant cell and the plant may be comprised in a transgenic plant. Thus, the transgenic plant may be used to produce the modified Cry3A toxin.Type: GrantFiled: July 25, 2011Date of Patent: August 21, 2012Assignee: Syngenta Participations AGInventors: Eric Chen, Cheryl M. Defontes