Patent No. U.S. 7,244,500 B2
The U.S. as represented by the Secretary of the Army, Washington, D.C. has been granted a patent for an active coating comprised of a plurality of layers arranged in a stack and overlying a substrate, the stack of layers includes a sensor layer for sensing particular conditions; a visual display layer for providing visual indication of conditions sensed by the sensor layer; and a switch layer interposed between the sensor layer and the visual display layer, the switch layer in electrical communication with the sensor layer and the visual display layer for electrically enabling the visual display layer to selectively provide visual indication of the conditions sensed by the sensor layer.