Just read through the "Where is Cinder" thread to see what you were referring to about "license to advertise".
Based on what Corning told me directly, Cupert is just trying to spin the truth. According to Corning, if they were really using Corning glass they could advertise it just like NVD does. Look them up and you'll find it lists Corning on their package. And remember Corning gave me their name as an example. The only reason Cupert wouldn't be able to advertise it is because they don't actually use Corning glass.