Are there any of those patents that haven't already lapsed into public domain? (anything patented in the US before this date in 1987 would now be entering PD) As far as I know, the only "clean IP" left would be trademarks and logos, as it's the copyrights that are currently being fought over... ?
Are you sure the patent laws expire that soon? In any case, aside from trademarks and logos, I'm guessing they own copyrights on all Amiga branded software made by Commodore, Escom, and anything the other brand usurpers might've sold with the Amiga name. Software copyright falls under the same laws as books and music I think, which means most of us will be dead before its public domain.
I suspect that even if the hardware patents are still protected, at this point they are worthless except if some small cottage industry wanted to sell spare parts to vintage computer hobbyists. So... pretty damn worthless.
