Patents by Inventor Jean C. Kridl
Jean C. Kridl 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: 8642840Abstract: Methods of increasing nitrogen utilization efficiency in monocot plants through genetic modification to increase the levels of alanine aminotransferase expression and plants produced there from are described. In particular, methods for increasing the biomass and yield of transgenic monocot plants grown under nitrogen limiting conditions compared to non-transgenic plants are described. In this way, monocot plants may be produced that maintain a desired yield while reducing the need for high levels of nitrogen application.Type: GrantFiled: September 18, 2012Date of Patent: February 4, 2014Assignee: Arcadia Biosciences, Inc.Inventors: Allen G. Good, Jean C. Kridl, Mary DePauw, Ashok K. Shrawat, George Theodoris
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Patent number: 8288611Abstract: Methods of increasing nitrogen utilization efficiency in monocot plants through genetic modification to increase the levels of alanine aminotransferase expression and plants produced there from are described. In particular, methods for increasing the biomass and yield of transgenic monocot plants grown under nitrogen limiting conditions compared to non-transgenic plants are described. In this way, monocot plants may be produced that maintain a desired yield while reducing the need for high levels of nitrogen application.Type: GrantFiled: December 21, 2006Date of Patent: October 16, 2012Assignee: Arcadia Biosciences, Inc.Inventors: Allen G. Good, Mary DePauw, Jean C. Kridl, George Theodoris, Ashok K. Shrawat
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Publication number: 20040055038Abstract: Regulatory regions from genes expressed during a particular developmental stage or in a specific tissue are identified employing cDNA screening. The resulting regulatory regions are manipulated for use with foreign sequences for introduction into plant cells to provide transformed plants having phenotypic property which can be modulated. The invention is exemplified with light, seed and a fruit-specific promoters.Type: ApplicationFiled: February 12, 2001Publication date: March 18, 2004Inventors: Vic C. Knauf, Jean C. Kridl
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Patent number: 6365802Abstract: This invention relates to a method for increasing stearate as a component of total triglycerides found in soybean seed. The method generally comprises growing a soybean plant having integrated into its genome a DNA construct comprising, in the 5′ to 3′ direction of transcription, a promoter functional in a soybean plant seed cell, a DNA sequence encoding an acyl-ACP thioesterase protein having substantial activity on C18:0 acyl-ACP substrates, and a transcription termination region functional in a plant cell. The present invention also provides a soybean seed with about 33 weight percent or greater stearate as a component of total fatty acids found in seed triglycerides.Type: GrantFiled: August 14, 1998Date of Patent: April 2, 2002Assignee: Calgene LLCInventor: Jean C. Kridl
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Patent number: 6281410Abstract: Regulatory regions from genes expressed during a particular developmental stage or in a specific tissue are identified employing cDNA screening. The resulting regulatory regions are manipulated for use with foreign sequences for introduction into plant cells to provide transformed plants having phenotypic property which can be modulated. The invention is exemplified with light, seed and a fruit-specific promoters.Type: GrantFiled: January 15, 1999Date of Patent: August 28, 2001Assignee: Calgene LLCInventors: Vic C. Knauf, Jean C. Kridl
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Publication number: 20010002489Abstract: This invention relates to a method for increasing stearate as a component of total triglycerides found in soybean seed. The method generally comprises growing a soybean plant having integrated into its genome a DNA construct comprising, in the 5′ to 3′ direction of transcription, a promoter functional in a soybean plant seed cell, a DNA sequence encoding an acyl-ACP thioesterase protein having substantial activity on C18:0 acyl-ACP substrates, and a transcription termination region functional in a plant cell. The present invention also provides a soybean seed with about 33 weight percent or greater stearate as a component of total fatty acids found in seed triglycerides.Type: ApplicationFiled: August 14, 1998Publication date: May 31, 2001Inventor: JEAN C. KRIDL
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Patent number: 5981839Abstract: Regulatory regions from genes expressed during a particular developmental stage or in a specific tissue are identified employing cDNA screening. The resulting regulatory regions are manipulated for use with foreign sequences for introduction into plant cells to provide transformed plants having phenotypic property which can be modulated. The invention is exemplified with light, seed and fruit-specific promoters.Type: GrantFiled: March 7, 1997Date of Patent: November 9, 1999Assignee: Calgene, LLCInventors: Vic C. Knauf, Jean C. Kridl
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Patent number: 5759829Abstract: Regulation of expression of genes encoded for in plant cell genomes is achieved by integration of a gene under the transcriptional control of a promoter which is functional in the host and in which the transcribed strand of DNA is complementary to the strand of DNA that is transcribed from the endogenous gene(s) one wishes to regulate. The integrated gene, referred to as antisense, provides an RNA sequence capable of binding to naturally existing RNAs, exemplified by polygalacturonase, and inhibiting their expression, where the anti-sense sequence may bind to the coding, non-coding, or both, portions of the RNA. The antisense construction may be introduced into the plant cells in a variety of ways and be integrated into the plant genome for inducible or constitutive transcription of the antisense sequence. A wide variety of plant cell properties may be modified by employing this technique.Type: GrantFiled: June 5, 1995Date of Patent: June 2, 1998Assignee: Calgene, Inc.Inventors: Christine K. Shewmaker, Jean C. Kridl, William R. Hiatt, Vic Knauf
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Patent number: 5650303Abstract: A geminivirus based vector system for obtaining controlled expression of a nucleic acid fragment of interest is disclosed. Tissue specific regulatory regions are identified employing cDNA screening and the resulting tissue specific regulatory regions are manipulated for use in geminivirus constructs to provide for transcription and/or expression of nucleic acid sequences nonindigenous to the geminivirus vector for introduction into plant cells. The vector system may be used to provide transformed plants having cells, tissues or parts with a modified phenotypic property.Type: GrantFiled: February 26, 1993Date of Patent: July 22, 1997Assignees: Calgene, Inc., The Regents of the University of CaliforniaInventors: Jean C. Kridl, George Bruening, Vic C. Knauf
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Patent number: 5608152Abstract: Brassica plants and seeds comprising nucleic acid sequences and methods for their use are provided which afford seed-specific transcription in order to modulate or modify expression in seed particularly in embryo cells. Transcriptional initiation regions are identified and isolated from plant cells such as seed embryo and seed coat and used to prepare expression cassettes which may then be transformed into plants cells for seed specific transcription. The method finds particular use in conjunction with modifying fatty acid production in seed tissue.Type: GrantFiled: May 30, 1995Date of Patent: March 4, 1997Assignee: Calgene, Inc.Inventors: Jean C. Kridl, Vic C. Knauf
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Patent number: 5589379Abstract: A geminivirus based vector system for obtaining controlled expression of a nucleic acid fragment of interest is disclosed. Tissue specific regulatory regions are identified employing cDNA screening and the resulting tissue--specific regulatory regions are manipulated for use in geminivirus constructs to provide for transcription and/or expression of nucleic acid sequences nonindigenous to the geminivirus vector for introduction into plant cells. The vector system may be used to provide transformed plants having cells, tissues or parts with a modified phenotypic property.Type: GrantFiled: May 23, 1994Date of Patent: December 31, 1996Assignee: Calgene, Inc.Inventors: Jean C. Kridl, George Bruening, Vic C. Knauf
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Patent number: 5530194Abstract: Novel DNA constructs which may be used as molecular probes or inserted into a plant host are provided. These constructs comprise a sequence obtainable from the Bce4 gene that is capable of directing transcription in seed tissue at least as early as 11 days after anthesis until approximately 30-35 days after anthesis, joined to a nucleic acid sequence of interest, and a transcription termination region. Thus, transcription of a message encoded by a nucleic acid sequence under the control of the Bce4 regulatory region will occur at a specific time of seed development. In this manner, production of exogenous products, as well as modulation of endogenous products, may be achieved.Type: GrantFiled: October 19, 1992Date of Patent: June 25, 1996Assignee: Calgene, Inc.Inventors: Vic C. Knauf, Jean C. Kridl, Donna E. Scherer
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Patent number: 5453566Abstract: Regulation of expression of genes encoded for in plant cell genomes is achieved by integration of a gene under the transcriptional control of a promoter which is functional in the host and in which the transcribed strand of DNA is complementary to the strand of DNA that is transcribed from the endogenous gene(s) one wishes to regulate. The integrated gene, referred to as antisense, provides an RNA sequence capable of binding to naturally existing RNAs, exemplified by polygalacturonase, and inhibiting their expression, where the anti-sense sequence may bind to the coding, non-coding, or both, portions of the RNA. The antisense construction may be introduced into the plant cells in a variety of ways and be integrated into the plant genome for inducible or constitutive transcription of the antisense sequence. A wide variety of plant cell properties may be modified by employing this technique.Type: GrantFiled: August 27, 1991Date of Patent: September 26, 1995Assignee: Calgene, Inc.Inventors: Christine K. Shewmaker, Jean C. Kridl, William R. Hiatt, Vic Knauf
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Patent number: 5420034Abstract: Nucleic acid sequences and methods for their use are provided which provide for seed-specific transcription, in order to modulate or modify expression in seed, particularly embryo cells. Transcriptional initiation regions are identified and isolated from plant cells such as seed embryo and seed coat and used to prepare expression cassettes which may then be transformed into plant cells for seed-specific transcription. The method finds particular use in conjunction with modifying fatty acid production in seed tissue.Type: GrantFiled: August 8, 1991Date of Patent: May 30, 1995Assignee: Calgene, Inc.Inventors: Jean C. Kridl, Vic C. Knauf
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Patent number: 5315001Abstract: DNA sequences are provided coding for acyl carrier protein, which sequence can be used for production of acyl carrier protein as an end product or in plant seed to enhance seed oil production. A regulated promoter is provided which substantially limits expression of the acyl carrier protein to seed tissue.Type: GrantFiled: January 28, 1992Date of Patent: May 24, 1994Assignee: Calgene Inc.Inventors: Jean C. Kridl, Vic C. Knauf
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Patent number: 5110728Abstract: DNA sequences are provided coding for acyl carrier protein, which sequence can be used for production of acyl carrier protein as an end product or in plant seed to enhance seed oil production. A regulated promoter is provided which substantially limits expression of the acyl carrier protein to seed tissue.Type: GrantFiled: November 15, 1989Date of Patent: May 5, 1992Assignee: Calgene, Inc.Inventors: Jean C. Kridl, Vic C. Knauf
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Patent number: 5107065Abstract: Regulation of expression of genes encoded for in plant cell genomes is achieved by integration of a gene under the transcriptional control of a promoter which is functional in the host and in which the transcribed strand of DNA is complementary to the strand of DNA that is transcribed from the endogenous gene(s) one wishes to regulate. The integrated gene, referred to as anti-sense, provides an RNA sequence capable of binding to naturally existing RNAs, exemplified by polygalacturonase, and inhibiting their expression, where the anti-sense sequence may bind to the coding, non-coding, or both, portions of the RNA. The antisense construction may be introduced into the plant cells in a variety of ways and be integrated into the plant genome for inducible or constitutive transcription of the anti-sense sequence. A wide variety of plant cell properties may be modifed by employing this technique.The pCGN978xK12 was deposited at the A.T.C.C. on Mar. 25, 1986, and given Accession No.Type: GrantFiled: August 30, 1988Date of Patent: April 21, 1992Assignee: Calgene, Inc.Inventors: Christine K. Shewmaker, Jean C. Kridl, William R. Hiatt, Vic Knauf
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Patent number: 4801540Abstract: Polygalacturonase DNA sequence and its use in modulating polygalacturonase expression in plant cells. DNA constructions are provided. The transit peptide finds use with heterologous peptides.Type: GrantFiled: January 2, 1987Date of Patent: January 31, 1989Assignee: Calgene, Inc.Inventors: William R. Hiatt, Raymond E. Sheehy, Christine K. Shewmaker, Jean C. Kridl, Vic Knauf