Hmm, well call me a cynic but all i see is someone thinking up as many theoretical methods of 3d printing as they can to file as many patents as they can so that when someone does make an actual working machine, they can shout patent infringement ! and get money.

They claim that the hardware has existed since 2007 - yet they don't actually have any.
You're not telling me that they couldn't have built at least one working prototype in 8 years.