Number of Unique Patent Assertions Declined Over Years

We recently studied the PTAB data and suggested that although the rise and fall in litigation indirectly affected the rise and fall in IPR challenges, the true driver of IPR challenges is the number of unique patents asserted each year. To learn more, we decided to look at the number of unique patents asserted against different defendants since 2010. We made several interesting discoveries, including the surprising fact that even though the number of cases has been rising, the number of unique patents asserted each year has been declining… (read more).