FEEDSTOCK FOR CVD According to my previously posted utube video from Rice University, you can use anything containing carbon as feedstock for the CVD process, ie., Girl Scout Cookies, as in the demo, or for that matter, your old flannel pajamas.
I doubt, however, that this would preclude an entirely different PROCESS for creating graphene to be patented, since it also exists in nature (if you can lift a layer of it off graphite using Scotch tape.)
Any thoughts?