Patents by Inventor Fu-Chih Cheng

Fu-Chih Cheng 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 evaluating plant protection
    Patent number: 9215863
    Abstract: A method is provided for evaluating a protected plant having a protection mechanism. A population of immature insects (i.e., larvae or nymphs) belonging to an insect species having a plurality of instars is first exposed to the protected plant such that the protected plant is at least contacted thereby. The insect exposure extends for a selected time period corresponding to a sublethal exposure of the insect population to the protected plant. The exposure of the insect population to the protected plant is then halted following the selected time period and insects collected. A physical characteristic of at least some collected insects is measured. The measured physical characteristics are then statistically analyzed so as to determine an efficacy of the protection mechanism of the protected plant with respect to the insect population. Associated methods are also provided.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: December 22, 2015
    Assignees: Pioneer Hi-Bred International, Inc., E.I. Du Pont de Nemours and Company
    Inventors: Rachel R. Binning, Fu-Chih Cheng, Bo Hong, Stephen A. Lefko, Timothy M. Nowatzki, Bruce H. Stanley, Stephen D. Thompson, Deanne L. Wright
  • METHOD OF EVALUATING PLANT PROTECTION
    Publication number: 20110236319
    Abstract: A method is provided for evaluating a protected plant having a protection mechanism. A population of immature insects (i.e., larvae or nymphs) belonging to an insect species having a plurality of instars is first exposed to the protected plant such that the protected plant is at least contacted thereby. The insect exposure extends for a selected time period corresponding to a sublethal exposure of the insect population to the protected plant. The exposure of the insect population to the protected plant is then halted following the selected time period and insects collected. A physical characteristic of at least some collected insects is measured. The measured physical characteristics are then statistically analyzed so as to determine an efficacy of the protection mechanism of the protected plant with respect to the insect population. Associated methods are also provided.
    Type: Application
    Filed: March 25, 2011
    Publication date: September 29, 2011
    Inventors: Rachel R. Binning, Fu-Chih Cheng, Bo Hong, Stephen A. Lefko, Timothy M. Nowatzki, Bruce H. Stanley, Stephen D. Thompson, Deanne L. Wright
  • Method of evaluating plant protection
    Patent number: 7939707
    Abstract: A method is provided for evaluating a protected plant having a protection mechanism. A population of immature insects (i.e., larvae or nymphs) belonging to an insect species having a plurality of instars is first exposed to the protected plant such that the protected plant is at least contacted thereby. The insect exposure extends for a selected time period corresponding to a sublethal exposure of the insect population to the protected plant. The exposure of the insect population to the protected plant is then halted following the selected time period and insects collected. A physical characteristic of at least some collected insects is measured and the immature insects are then sorted into instars. The measured physical characteristics are then statistically analyzed across the instars so as to determine an efficacy of the protection mechanism of the protected plant with respect to the insect population. Associated methods are also provided.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: May 10, 2011
    Assignees: Pioneer Hi-Bred International, Inc., E.I. du Pont de Nemours and Company
    Inventors: Stephen A. Lefko, Rachel R. Binning, Timothy M. Nowatzki, Deanne L. Wright, Bruce H. Stanley, Stephen D. Thompson, Fu-Chih Cheng
  • Method of evaluating plant protection
    Publication number: 20060104904
    Abstract: A method is provided for evaluating a protected plant having a protection mechanism. A population of immature insects (i.e., larvae or nymphs) belonging to an insect species having a plurality of instars is first exposed to the protected plant such that the protected plant is at least contacted thereby. The insect exposure extends for a selected time period corresponding to a sublethal exposure of the insect population to the protected plant. The exposure of the insect population to the protected plant is then halted following the selected time period and insects collected. A physical characteristic of at least some collected insects is measured and the immature insects are then sorted into instars. The measured physical characteristics are then statistically analyzed across the instars so as to determine an efficacy of the protection mechanism of the protected plant with respect to the insect population. Associated methods are also provided.
    Type: Application
    Filed: November 14, 2005
    Publication date: May 18, 2006
    Applicants: Pioneer Hi-Bred International, Inc., E.I. du Pont de Nemours and Company
    Inventors: Stephen Lefko, Rachel Binning, Timothy Nowatzki, Deanne Wright, Bruce Stanley, Stephen Thompson, Fu-Chih Cheng