Patents by Inventor Jan J. A. Leemans

Jan J. A. Leemans 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).

  • Transformation vectors allowing expression of foreign polypeptide endoxins from Bacillus thuringiensis in plants
    Patent number: 5545565
    Abstract: Novel transformation vectors containing novel chimeric genes allow the introduction of exogenous DNA fragments coding for polypeptide toxins produced by Bacillus thuringiensis or having substantial sequence homology to a gene coding for a polypeptide toxin as described herein and expression of the chimeric gene in plant cells and their progeny after integration into the plant cell genome. Transformed plant cells and their progeny exhibit stably inherited polypeptide toxin expression useful for protecting said plant cells and their progeny against certain insect pests and in controlling said insect pests.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: August 13, 1996
    Assignee: Plant Genetic Systems, N.V.
    Inventors: Henri M. J. De Greve, Maria B. L. F. Salgado, Marc C. E. Van Montagu, Mark A. Vaeck, Marcus F. O. Zabeau, Jan J. A. Leemans, Hermanus F. P. Hofte
  • Transformation vectors allowing expression of foreign polypeptide endotoxins from Bacillus thuringiensis in plants
    Patent number: 5317096
    Abstract: Novel transformation vectors containing novel chimeric genes allow the introduction of exogenous DNA fragments coding for polypeptide toxins produced by Bacillus thuringiensis or having substantial sequence homology to a gene coding for a polypeptide toxin as described herein and expression of the chimeric gene in plant cells and their progeny after integration into the plant cell genome. Transformed plant cells and their progeny exhibit stably inherited polypeptide toxin expression useful for protecting said plant cells and their progeny against certain insect pests and in controlling said insect pests.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: May 31, 1994
    Assignee: Plant Genetic Systems, N.V.
    Inventors: Henri M. J. De Greve, Maria B. L. F. Salgado, Marc C. E. Van Montagu, Mark A. Vaeck, Marcus F. O. Zabeau, Jan J. A. Leemans, Hermanus F. P. Hofte
  • Transformation vectors allowing expression of Bacillus thuringiensis endotoxins in plants
    Patent number: 5254799
    Abstract: Novel transformation vectors containing novel chimeric genes allow the introduction of exogenous DNA fragments coding for polypeptide toxins produced by Bacillus thuringiensis or having substantial sequence homology to a gene coding for a polypeptide toxin as described herein and expression of the chimeric gene in plant cells and their progeny after integration into the plant cell genome. Transformed plant cells and their progeny exhibit stably inherited polypeptide toxin expression useful for protecting said plant cells and their progeny against certain insect pests and in controlling said insect pests.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: October 19, 1993
    Assignee: Plant Genetic Systems N.V.
    Inventors: Henri M. J. De Greve, Maria B. L. F. Salgado, Marc C. E. Van Montagu, Mark A. Vaeck, Marcus F. O. Zabeau, Jan J. A. Leemans, Hermanus F. P. Hofte