I have a question, aren't some of these public universities in some part subsidized by tax payer money at the state level?

If this is true, should these patents be exclusive domain of these school's to profit from exclusively? It seems to me that selling patents to these litigious entities impedes progress that might otherwise benefit the same tax paying public that helped underwrite at least some of the research.

Am I looking at this wrong?

Maybe there are lots of other nuances that my oversimplification doesn't account for. I would be curious to hear what those are if so.