PM there is obviously existing competition, even if does not use identical technology. Of particular interest in that article was the description of existing technologies that eliminate leaking for example. Which SEO were claiming recently only they could do.
But I agree their particular technology looks unique at the moment and could be very promising, given the large number of competitors all watching each other closeley it remains to be seen whether they have an IP position than can exclude competition in the future. Biopolymers can be difficult to get a patent lock on because of the capacity for variance and RF has an awesome amount of prior art. Still on a six month view this may well all be irrelevant.