The worst thing in the world that can happen to you if you’re an engineer that has given his life to something is for someone to rip it off and put their name on it.
Technology is nothing. What's important is that you have a faith in people, that they're basically good and smart, and if you give them tools, they'll do wonderful things with them.
I think if you do something and it turns out pretty good, then you should go do something else wonderful, not dwell on it for too long. Just figure out what's next.