Corning Incorporated is a leader in clean-air technologies.  Our ceramic substrates and diesel particulate filters form the core of world-class pollution control systems for stationary and mobile applications, including light-duty gasoline and diesel passenger cars and trucks, and heavy-duty diesel on-road and non-road vehicles.  Corning substrates and filters deliver consistent, reliable, and durable performance under demanding conditions. Our worldwide network of service, engineering, and manufacturing facilities provide quality products, market understanding, and reliable supply to our global customers.  Our materials and process expertise have made us key contributors to the campaign for cleaner air for more than thirty years.