Retailers have been generally excited about the loser pays system the proposed SHIELD Act would create for trolls.  But a recent iam blog discussing comments from Patent Freedom suggests the SHIELD Act may not have the impact many retailers expect.  According to Patent Freedom:

75% of trolls are asserting only patents originally assigned to them (6%) or a mix (15%).  So as many as 75% of trolls could avoid the reach of the SHIELD Act.  That leaves a few or 1 of 4 trolls covered by the SHIELD Act.

That is a powerful statistic.  If it is correct, the SHIELD Act will not have nearly the impact many expected.  And Patent Freedom is a well-respected source of troll – related data that makes it its business to know trolls well.