Patents by Inventor Constance Meta Smith

Constance Meta Smith 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).

  • Spray applicator
    Patent number: 6739518
    Abstract: An apparatus and method are disclosed for efficiently applying a test substance to a test unit by atomizing a solution or suspension of the test substance and electrostatically attracting the atomized droplets to the test unit. This apparatus and method can be used to apply small quantities of test substances to organisms such as plants or insects to assay their utility as crop protection agents.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: May 25, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James Scott Davis, Constance Meta Smith