The article cites number of patent cases taken to court over years. One should note that the damages are geater. When a patent troll was able to stop Microsoft

The article cites number of patent cases taken to court over years. One should note that the damages are geater. When a patent troll was able to stop Microsoft from distributing their office because someone patented a way to save documents in xml and regardless of the final rule or the settlement. The FUD is enough to make many people pay without being sued.