Patent trolls were down but certainly not out in 2016. After a massive burst of litigation at the end of last year, we saw a noticeable drop in patent troll lawsuits at the start of this one. But trolls began returning to court as the year continued and 2016 will likely end with a relatively small overall decline. Consistent with recent trends, troll cases clustered in the Eastern District of Texas. Approximately one in three patent suits were filed in that remote, troll-friendly district, and these suits were almost all filed by companies with no business other than suing for patent infringement.
With many of the worst patent suits clustering in Texas, recent reform efforts have focused on requiring that patent suits be brought in forums that have meaningful ties to the dispute.
Read more at EFF