"Let's start with what everyone knows—NPE patent litigation isn't going away. Since 2007, more than 1,500 companies per year are hit with lawsuits brought by the more than 300 NPEs that PatentFreedom track (using its fairly conservative definition of what constitutes an NPE). NPE litigation has grown from where it accounted for between 2 to 3 percent of all patent suits a decade ago to the point that it now accounts for 17 percent . For some operating companies, NPE litigation makes up more than 90 percent of their patent litigation docket."