Siegfried, many suppliers can still lable their products as "Garphene". Within 2 years their will be international standards set for Graphene.  When those standards are set the Cat will bet their will be fewer than 4 companies able to lable their product as Graphene.  Having said that the only company that will be able to consistently supply 1-5 layer Graphene will be Zen. Zen will also be able to produce Graphene at the lowest cost. Cheers, Fluffy the Cat