Patents by Inventor Delbert D. Oehler

Delbert D. Oehler 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).

  • Device for sustained-release of a chemical onto an animal and method of using the device
    Patent number: 4930451
    Abstract: A device for the controlled, sustained-release of an animal-treating composition, such as an insecticide, onto the surface of an animal in contact with the device comprises a reservoir defined by a permeable, imperforate, polymeric membrane. A porous packing inside the reservoir continuously wets the inside of the reservoir with the animal-treating composition so that the composition can continuously permeate through the membrane to the outer surface of the reservoir. A porous sheath in contact with the outer surface of the reservoir continuously conducts the composition away from the membrane and continuously deposits the composition onto the surface of the animal. The device is particularly useful for controlling horn flies on range animals, such as cattle.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: June 5, 1990
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: John A. Miller, Delbert D. Oehler