Patents by Inventor Ruth V. Hazzard

Ruth V. Hazzard 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).

  • Viscous liquid applicator
    Patent number: 5964380
    Abstract: The invention features an applicator for delivering a defined, adjustable quantity of a viscous liquid, in a short stream. The applicator can be used, for example, to accurately and easily apply oil to ears of sweet corn to prevent infestation by corn earworms.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: October 12, 1999
    Assignees: University of Massachussets, Trustees of Hampshire College
    Inventors: Ruth V. Hazzard, Ellen D. Siedlecki, Brian B. Schultz, Douglas A. Hartwell