Patents by Inventor Dong C. Dao

Dong C. Dao 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: 5580544
    Abstract: Water-dispersible paste formulations used in connection with seed treatment and foliar treatment of plants provide excellent dust and rub-off control. The paste formulations comprise an active ingredient and a hydrocarbon oil carrier having a boiling point of at least 150.degree. C. The carrier is present in an amount that is effective for reducing dusting off of the plant leaf or seed. The paste formulations further include a surfactant and an effervescent comprising an alkaline carbonate and a solid and weak acid. The surfactant, the alkaline carbonate, and the solid and weak acid are respectively present in an amount that is effective for enabling the paste formulation to readily and quickly be dispersed in water. The paste formulations are especially suitable for containment in water soluble and/or water-dispersible bags or pouches, such use tending to render the active ingredient safer to handle and therefore better for consumers and the environment.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: December 3, 1996
    Assignees: Uniroyal Chemical Company, Inc., Uniroyal Chemical Ltd/Ltee
    Inventors: Dong C. Dao, William L. Hallatt, Heather L. Hibbett, Colin H. Drennan