I contacted Petro T. Tyschtschenko the other day and he just got back to me with the following about Amiga IP.
My understanding is that Gateway is the owner.
best regards Petro T. Tyschtschenko
You created a fresh amiga.org account just to make this one post (like you did at raspberrypi.org)?
Mr Tyschtschenko worked for Commodore, ESCOM and in the Gateway days, then he retired. So why do you ask him about what happened afterwards? How is he supposed to know?