If what they claim is true, I wouldn't call it stealing. It is impressive document and if all goes well for Hyperion, we might even be able to buy OS4 someday.
No chance in Hell will that happen. Before that impossible solution would occure, the courts throw it back to WA State courts. WA State would then sell off the IP to pay existing creditors to settle all AI WA's debts.
The tatic Hyperion is using is to annoy AI to the maximum by forcing them to go to great lengths (and cost huge amount of attorney fees) to prove they do own the IP. I think that is what Hyperion is trying to do, bleed AI as much as possible and force a new contract. It is their ONLY option afterall.
Of course, this opens the door for AI to do the same with Hyperion in attempt to bleed them dry be demanding documentation and other things.
Dammy