I know the feeling on ideas that you can't develop - got a few myself that would require a bit of proving out and considerable patent research before I could consider trying to monetize them.
EDIT: OK, so I need to read more carefully ... heatsink itself is a phase-change device. Sounds a bit more elegant than running heat pipes to auxiliary heatsinks. But I'm drawing a blank on how this is going to passively remove world-beating amounts of heat. But maybe that's why it's sufficiently novel as to be worth licensing to industry.