"The suit had cost $3 million, and the financial damage was done." This is the problem. In all other countries (except Great Britain, AFAIK) the loser pays all costs (including the public cost of the trial and the opposing party's legal fees). The loser-pays system has three effects: 1. No frivolous lawsuits. Cost of losing is high. 2. The defending party will defend vigorously if it believes itself to be in the righ…
http://arstechnica.com/tech-policy/2012/08/bill-would-force-...
It's missing a critical component, however: it doesn't include a bond requirement on the part of the suing company. Therefore it only helps so much as patent trolls typically sue from a shell company with no assets.