The article says they working to commercialise it. That will presumably involve selling a machine.
The whole idea sounds like it could be really simple once implemented, and in a world of super complicated coffee brewers with small little crevices that are hard to clean, it'd be very welcome.
If this just has to agitate the brewing area with ultrasound and not much else, there's no reason for it to cost a lot. Something like the Silvia you mention is just a lot more complicated.