Patents by Inventor Andreas Stefan

Andreas Stefan 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).

  • Method and device for shaping a lengthwise corrugated web
    Publication number: 20050006816
    Abstract: In a method and device for continuous shaping of a plane web to a lengthwise corrugated web, wherein the web in the shaping area is continuously spatially guided and shaped, in that any imaginary line positioned within the center plane of the web and extending in the transport direction during shaping in the shaping area travels approximately the same travel distance, with increasing shaping only those web lines not positioned at the edge are subjected to a deflection perpendicularly to the plane of the web. The maximum value of the deflection is the greater the farther the web line is removed from the edge of the web, respectively.
    Type: Application
    Filed: June 6, 2002
    Publication date: January 13, 2005
    Inventors: Henry Drut, Frank Weile, Andreas Stefan, Horst Goldhahn
  • Methods for obtaining plant varieties
    Publication number: 20040205839
    Abstract: The present invention relates to an isolated and purified DNA comprising a nucleotide sequence that encodes a polypeptide functionally involved in the DNA mismatch repair system of a plant.
    Type: Application
    Filed: December 19, 2003
    Publication date: October 14, 2004
    Inventors: Marie-Pascale Doutriaux, Andreas Stefan Betzner, Georges Freyssinet, Pascal Perez
  • Protein complementation in transgenic plants
    Patent number: 6791011
    Abstract: The invention relates to pairs of parent plants for producing hybrid seeds and to methods for producing plants with a desired phenotype. The desired phenotype is an active enzyme, a regulatory protein or a protein which affects the functionality and/or viability and/or structural integrity of a cell. Preferably, the desired phenotype is substantially absent from the parent plants/lines. In particular, the invention relates to parent plants and methods involving plant lines for producing male-sterile plants and seeds.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: September 14, 2004
    Assignee: Gene Shears Pty. Limited
    Inventors: Wyatt Paul, Pascual Perez, Eric Huttner, Andreas Stefan Betzner
  • Composition and method for increased meiotic recombination in plants
    Publication number: 20040111764
    Abstract: The present invention provides an expression cassette comprising a meiotically active promoter operably linked to a polynucleotide encoding a recombinational DNA repair polypeptide, or fragment thereof, wherein said polynucleotide is capable of stimulating plant meiotic recombination when expressed into RNA and/or said polypeptide.
    Type: Application
    Filed: August 18, 2003
    Publication date: June 10, 2004
    Inventors: Andreas Stefan Betzner, Eric Huttner, Pascual Perez, Marie-Pascale Doutriaux, Charles White
  • Isolated DNA that encodes an Arabidopsis thaliana MSH3 protein involved in DNA mismatch repair and a method of modifying the mismatch repair system in a plant transformed with the isolated DNA
    Patent number: 6734019
    Abstract: The present invention relates to an isolated and purified DNA comprising a nucleotide sequence that encodes a polypeptide functionally involved in the DNA mismatch repair system of a plant.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: May 11, 2004
    Assignee: Aventis Cropscience S.A
    Inventors: Marie-Pascale Doutriaux, Andreas Stefan Betzner, Georges Freyssinet, Pascal Perez