Hm, I was trying to get my hands on some advanced vr chips to do something like hololens within three years before the hololens project was even announced to have existed, and bingo, hololens came along. Hopefully it was parallel development (but on a number of occasions those that had opportunity to access my private work cashed in).
Anyway, I hope this is not the same company that I contacted years ago to ask about their patent coverage quoting prior art from before their patent came out. If it is the same company, I contacted them because I had doubts about the patent in question, but they seemed intent. I can't remember if what was being claimed which I was referring too, was just too obvious. We get problems with patent examiners, on the one hand, they let obvious stuff through. On the other hand, they can be presented with something they, and most people, would not think of because it is so unobvious to them, but because the trolls have seen how it links together, it now is obvious to them and they deny it. But it begs the question, if it was so obvious, then how come everybody isn't doing it? The old saying, "in hindsight" things you wouldn't dream of become obvious. That's what prior art searches are supposed to show.
Maybe Microsoft quoted the patent in support of something else outside it's granted claims, but the company maybe making claims on something else in the patent which Microsoft didn't realise. What happens sometimes, is companies interpret their parents as covering situations it doesn't seem to cover not come near. Squint your eyes enough and lots of things look like similar blobs you might like to claim IP on. Thanks is the sort of thing that happened in visual design, but intellectually, it is similar in patent IP handling. What can you get away with, what you should not get away with.
If the criminal law was applied to patents, retrospectively, as it should, then the prisons would find themselves with potentially hundreds of thousands of new customers. But because the law on patents is so light on, the patent system is a mess of corruption. I knew a guy that went through one of the biggest patent calamities, and still nobody in jail, and the criminal law would even have applied in the case.