Patents by Inventor D. Leroy Williamson

D. Leroy Williamson 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).

  • Visual-olfactory habitat mimic for assessment of fruit fly response to behavior-modifying chemicals
    Patent number: 4548804
    Abstract: A method and apparatus are described which combine visual and olfactory stimuli such that behavioral responses of fruit flies to test chemicals can be readily assessed. In the method of the invention, the test chemical is placed in a chamber, air is drawn past the sample to enhance volatilization and increase the concentration of volatiles in the air, the concentrated volatiles are blown in the vicinity of a substrate which visually mimics the fruit fly host plant in a concentration sufficient to elicit a behavioral response, and the responses are observed.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: October 22, 1985
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: D. Leroy Williamson