Clearsign Combustion Corporation (Clearsign) designs, develops and markets technologies. Clearsign�s combustion technology includes Electrodynamic Combustion Control (ECC). Clearsign�s technology consists of four components: a computer, software delivering algorithms, a power amplifier (resident outside the combustion chamber) and electrode(s) (inside the combustion chamber). ClearSign�s Electrodynamic Combustion Control technology uses computer-controlled, high-voltage electric fields to manipulate the movement of electrically charged molecules (ions) that are a natural product of the combustion process. The Company has designed and/or built several prototype systems: a small bench-top configuration of 5,000 British thermal units/hour, and a larger system of 25,000 British thermal units/hour with optical access to give direct visual and infra-red observation of flame shape and heat transfer via calorimetry.