Patents by Inventor Gleta Carswell

Gleta Carswell 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 of controlling insect larvae comprising feeding an insecticidal amount of a transgenic maize plant expressing a polypeptide having Bt-crystal protein toxic properties
    Patent number: 5824302
    Abstract: According to the invention there is provided a method of controlling insect larvae comprising the steps of feeding said larvae an insecticidal amount of a transgenic Zea mays plant that expresses a polypeptide having the insect toxicity properties of Bacillus thuringiensis crystal protein.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: October 20, 1998
    Assignee: Novartis Finance Corporation
    Inventors: Gleta Carswell, Christian Harms, Yin-Fu Chang, Mary-Dell Chilton
  • Zea mays plants regenerated from protoplasts or protoplast-derived cells
    Patent number: 5770450
    Abstract: Methods of regenerating fertile Zea mays plants from protoplasts or protoplast-derived cells are described. The protoplasts or cells may be derived from embryogenic cell cultures or callus cultures. The protoplasts, cells and resulting plants may be transgenic, containing, for example, chimeric genes coding for a polypeptide having substantially the insect toxicity properties of the crystal protein produced by Bacillus thuringiensis.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: June 23, 1998
    Assignee: Novartis Finance Corporation
    Inventors: Ray Shillito, Gleta Carswell, Christian Harms, Yin-Fu Chang
  • Method of regenerating fertile transgenic Zea mays plants from protoplasts
    Patent number: 5766900
    Abstract: Methods of regenerating fertile Zea mays plants from protoplasts or protoplast-derived cells are described. The protoplasts or cells may be derived from embryogenic cell cultures or callus cultures. The protoplasts, cells and resulting plants may be transgenic, containing, for example, chimeric genes coding for a polypeptide having substantially the insect toxicity properties of the crystal protein produced by Bacillus thuringiensis.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: June 16, 1998
    Assignee: Novartis Corporation
    Inventors: Ray Shillito, Gleta Carswell, Christian Harms, Yin-Fu Chang
  • Methods for protecting ZEA mays plants against pest damage
    Patent number: 5595733
    Abstract: According to the invention there is provided a method of controlling insect larvae comprising the steps of feeding said larvae an insecticidal amount of a transgenic Zea mays plant that expresses a polypeptide having the insect toxicity properties of Bacillus thuringiensis crystal protein.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: January 21, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Gleta Carswell, Christian Harms, Yin-Fu Chang, Mary-Dell Chilton
  • Zea mays plants and transgenic Zea mays plants regenerated from protoplasts or protoplast-derived cells
    Patent number: 5350689
    Abstract: Methods of regenerating fertile Zea mays plants from protoplasts or protoplast-derived cells are described. The protoplasts or cells may be derived from embryogenic cell cultures or callus cultures. The protoplasts, cells and resulting plants may be transgenic, containing, for example, chimeric genes coding for a polypeptide having substantially the insect toxicity properties of the crystal protein produced by Bacillus thuringiensis.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: September 27, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Ray Shillito, Gleta Carswell, Christian Harms, Cindy Boyce, Yin-Fu Chang