Patents by Inventor Ivy McIlwain

Ivy McIlwain 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).

  • Flood control system
    Patent number: 4478534
    Abstract: A system for controlling and preventing flooding of areas adjacent a waterway includes a multiplicity of interconnected flood gates located in the banks of the waterway. The system includes water level sensors and devices for moving the floodgates in response to signals from the water level sensors.
    Type: Grant
    Filed: April 7, 1981
    Date of Patent: October 23, 1984
    Inventor: Ivy McIlwain