Patents by Inventor John W. Gronwald

John W. Gronwald 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).

  • Publication number: 20020034497
    Abstract: The present invention provides a novel isolated and purified Harknessia lythrii. It further provides a mycoherbicidal composition that is effective in controlling purple loosestrife, and methods for controlling purple loosestrife.
    Type: Application
    Filed: May 2, 2001
    Publication date: March 21, 2002
    Inventors: David R. Johnson, Roger L. Becker, Elizabeth Jean Stamm Katovich, John W. Gronwald, Amy Y. Rossman, Kathryn L. Plaisance, David F. Farr
  • Patent number: 6268550
    Abstract: The present invention provides the complete cDNA sequence of maize acetyl CoA carboxylase and methods for altering the oil content of plants by introducing and expressing a plant acetyl CoA carboxylase gene in plant cells. The method of altering the oil content in a plant includes the steps of introducing an expression cassette into plant cells and expressing the acetyl CoA carboxylase gene in an amount effective to alter the oil content of the cells.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: July 31, 2001
    Assignees: Regents of the University of Minnesota, The United States of America
    Inventors: Burle G. Gengenbach, David A. Somers, Donald L. Wyse, John W. Gronwald, Margaret A. Egli, Sheila M. Lutz
  • Patent number: 6222099
    Abstract: The present invention provides a complete cDNA sequence and partial DNA sequences encoding maize acetyl CoA carboxylase and methods for altering the oil content of plants by introducing and expressing a maize acetyl CoA carboxylase gene in plant cells.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: April 24, 2001
    Assignees: Regents of the University of Minnesota, The United States of America
    Inventors: Burle G. Gengenbach, David A. Somers, Donald L. Wyse, John W. Gronwald, Margaret A. Egli, Sheila M. Lutz
  • Patent number: 6146867
    Abstract: The present invention provides the complete cDNA sequence of maize acetyl CoA carboxylase and a method introducing and expressing a plant acetyl CoA carboxylase gene in plant cells. The method includes the steps of introducing an expression cassette encoding a plant acetyl CoA carboxylase or an antisense DNA sequence complementary to the sequence for a plant acetyl CoA carboxylase gene operably linked to a promoter functional in plant cells, into the cells of a plant tissue and expressing the plant acetyl CoA carboxylase gene. The expression cassette can also be introduced into other host cells to increase yield of a plant acetyl CoA carboxylase crystallized enzyme.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: November 14, 2000
    Assignees: Regents of the University of Minnesota, United States of America
    Inventors: Burle G. Gengenbach, David A. Somers, Donald L. Wyse, John W. Gronwald, Margaret A. Egli, Sheila M. Lutz
  • Patent number: 6069298
    Abstract: The present invention provides the complete cDNA sequence of maize acetyl CoA carboxylase and methods for conferring herbicide tolerance and/or altering the oil content of plants by introducing and expressing a plant acetyl CoA carboxylase gene in plant cells. The method of imparting herbicide tolerance to a plant includes the steps of introducing an expression cassette encoding a plant acetyl CoA carboxylase or an antisense DNA sequence complementary to the sequence for a plant acetyl CoA carboxylase gene operably linked to a promoter functional in plant cells, into the cells of a plant tissue and expressing the plant acetyl CoA carboxylase gene in an amount effective to render the acetyl CoA carboxylase and/or plant cell substantially tolerant to the herbicides. The method of altering the oil content in a plant includes the steps of introducing an expression cassette into plant cells and expressing the acetyl CoA carboxylase gene in an amount effective to alter the oil content of the cells.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: May 30, 2000
    Assignees: Regents of the University of Minnesota, The United States of America
    Inventors: Burle G. Gengenbach, David A. Somers, Donald L. Wyse, John W. Gronwald, Margaret A. Egli, Sheila M. Lutz
  • Patent number: 5498544
    Abstract: The present invention provides an expression cassette encoding a plant acetyl CoA carboxylase gene and methods for conferring herbicide tolerance and/or altering the oil content of plants by introducing and expressing a plant acetyl CoA carboxylase gene in plant cells. An expression cassette of the invention can comprise a gene coding a plant acetyl CoA carboxylase or a functional mutant thereof or an antisense DNA sequence complementary to the sequence for a plant acetyl CoA carboxylase gene combined with a promoter functional in a plant cell. The method of imparting herbicide tolerance to a plant includes the steps of introducing the expression cassette into the cells of a plant tissue and expressing the plant acetyl CoA carboxylase gene in an amount effective to render the acetyl CoA carboxylase and/or plant cell substantially tolerant to the herbicides.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: March 12, 1996
    Assignee: Regents of the University of Minnesota
    Inventors: Burle G. Gengenbach, David A. Somers, Donald L. Wyse, John W. Gronwald, Margaret A. Egli, Sheila M. Lutz
  • Patent number: 5428001
    Abstract: Maize plants are grown in a planting area that are tolerant of inhibition by a cyclohexanedione herbicide, an aryloxyphenoxypropanoic acid herbicide, or mixtures thereof, at levels which normally inhibit growth and development, wherein said tolerance is conferred by an altered acetylcoenzyme A carboxylase (ACCase) tolerant of inhibition by the herbicide at levels which normally inhibit the activity of an unaltered ACCase. Additionally, an effective quantity of the named herbicide is applied so that the weeds (e.g., grass) are killed and the maize plants are uninjured. A representative cyclohexandione herbicide is sethoxydim and a representative aryloxyphenoxypropanoic acid herbicide is haloxyfop. Competition for the maize crop posed by weeds effectively is eliminated.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: June 27, 1995
    Assignee: Regents Of The University of Minnesota
    Inventors: David A. Somers, William B. Parker, Donald L. Wyse, John W. Gronwald, Burle G. Gengenbach
  • Patent number: 5290696
    Abstract: The present invention provides a maize plant wherein the growth and development of said plant is tolerant of inhibition by a cyclohexanedione herbicide, an aryloxyphenoxypropanoic acid herbicide, or mixtures thereof, at levels which normally inhibit the growth and development of maize, wherein said tolerance is conferred by an altered acetyl coenzyme A carboxylase (ACCase) tolerant of inhibition by said herbicide at levels which normally inhibit the activity of an unaltered ACCase.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: March 1, 1994
    Assignee: Regents of the University of Minnesota
    Inventors: David A. Somers, William B. Parker, Donald L. Wyse, John W. Gronwald, Burle G. Gengenbach
  • Patent number: 5162602
    Abstract: The present invention provides a maize plant wherein the growth and development of said plant is tolerant of inhibition by a cyclohexanedione herbicide, an aryloxyphenoxypropanoic acid herbicide, or mixtures thereof, at levels which normally inhibit the growth and development of maize, wherein said tolerance is conferred by an altered acetyl coenzyme A carboxylase (ACCase) tolerant of inhibition by said herbicide at levels which normally inhibit the activity of an unaltered ACCase.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: November 10, 1992
    Assignee: Regents of the University of Minnesota
    Inventors: David A. Somers, William B. Parker, Donald L. Wyse, John W. Gronwald, Burle G. Gengenbach