Seadragon is Zooming technology that is, at best, a decent demo at this point (and probably designed to be patented). For people who don't know what we're talking about: http://zoom.it
Accelerator I'd never even heard of which is probably because it was introduced in 2006 and no finished product has ever come of it.
Cleartype came out of the Microsoft e-books team which wasn't part of Microsoft Research to the best of my knowledge
So giving you F# that makes two products: Surface and F# for $9 billion dollars per year. So either your argument is those two products cost the majority of that money to maintain or I go back to my original point. Microsoft Research's primary function at the company is to patent things