Putting this another way that makes it less exciting: the more important a patent is to your future survival, the higher the quality. Or another way: multiplyi

Putting this another way that makes it less exciting: the more important a patent is to your future survival, the higher the quality. Or another way: multiplying the average number of forward citations by the total, yielding the absolute number of forward citations, would result in the opposite graph: massive # of forward citations for university, less for incumbent, and least for startups. It is almost a proxy for patent cost.