Patents by Inventor JOHN L. FLEXNER

JOHN L. FLEXNER 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).

  • Patent number: 8729336
    Abstract: Embodiments of the present invention relate to insecticidal Bacillus thuringiensis Cry1 and Cry2 polypeptides. Methods for using the polypeptides and nucleic acids of embodiments of the invention to synergistically enhance resistance of plants to insect predation are encompassed in embodiments of the present invention.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: May 20, 2014
    Assignees: Pioneer Hi-Bred International, Inc, E.I. du Pont de Nemours and Company
    Inventors: John L. Flexner, Deirdre M. Kapka-Kitzman, Lisa Procyk, Bruce Stanley, Jianzhou Zhao
  • Publication number: 20110077929
    Abstract: Systems, methods and other means for evaluating durability of genetic traits for the control of damage by pests are provided. Inputs parameters associated with the genetic traits, pests, and one or more fields may be received by a computer and/or other type of machine, which may apply a computer-implemented model to determine, e.g., durability of the genetic traits. Some embodiments may also or instead include an output associated with, e.g., the durability. The computer-implemented model may provide, in some embodiments, for modeling dynamic movement of the pests within a Bt field and one or more of the fields being Bt fields. The computer-implemented model may also or instead provide, in some embodiments, for modeling blended refuge seed products.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 31, 2011
    Inventors: Bruce H. Stanley, Zaiqi Pan, John L. Flexner, David W. Onstad
  • Publication number: 20100221238
    Abstract: Embodiments of the present invention relate to insecticidal Bacillus thuringiensis Cry1 and Cry2 polypeptides. Methods for using the polypeptides and nucleic acids of embodiments of the invention to synergistically enhance resistance of plants to insect predation are encompassed in embodiments of the present invention.
    Type: Application
    Filed: January 22, 2010
    Publication date: September 2, 2010
    Applicants: PIONEER HI-BRED INTERNATIONAL, INC., E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: JOHN L. FLEXNER, DEIRDRE M. KAPKA-KITZMAN, LISA PROCYK, BRUCE STANLEY, JIANZHOU ZHAO
  • Publication number: 20100210460
    Abstract: Insect refuge strategies are described for the management of insect resistance development. The present invention relates generally to the control of pests that cause damage to crop plants, and in particular to corn plants, by their feeding activities directed to root damage, and more particularly to the control of such plant pests by ensuring, through the seed production process, that sufficient refuge seeds are present in a given set of seeds to reduce the rate of development of resistant pests, thereby eliminating the problems that may arise with regard to refuge compliance. In addition, the treatment of such seed with a chemical or peptide-associated pesticide prior to planting the seed is also disclosed.
    Type: Application
    Filed: February 19, 2010
    Publication date: August 19, 2010
    Applicants: Pioneer Hi-Bred International, Inc., E. I. Du Pont De Nemours and Company
    Inventors: Peter D. Coaldrake, John L. Flexner, Laura S. Higgins, Stephen A. Lefko, Timothy M. Nowatzki
  • Publication number: 20090094706
    Abstract: Laboratory-selected colonies of western corn rootworm exhibiting tolerance to maize containing event DAS-59122-7 are described. Further, methods for various uses of these resistance western corn rootworm colonies are also described, including development of negative cross-resistance strategies and improved resistance management strategies.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 9, 2009
    Applicants: PIONEER HI-BRED INTERNATIONAL, INC., E. I. DUPONT DENEMOURS AND COMPANY
    Inventors: RACHEL BINNING, JOHN L. FLEXNER, STEPHEN LEFKO, TIMOTHY NOWATZKI, DAVID ONSTAD, STEPHEN THOMPSON