I wonder how damaged the SGI brand name is.

It has gone bankrupt twice, and no potential customer would have missed the events. SGI's customers aren't like consumers that go out and buy a Zenith television to replace the one they bought a few decades ago, expect it's the same company.

SGI sold off or licensed all of its IP that would bring money years ago. There might be an odd patent here and there, but there can't be much. I've heard a claim that Cray-nee-Tera has long wanted the right to build a T3F, something they were contractually prohibited from doing. I don't think that's still true because that would have been "monetized" if Cray were willing to pay anything for it.