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We’ve all heard the story of the Three Billy Goats Gruff—the one in which three goats need to cross a bridge in order to reach the lush meadow on the other side. But a hungry troll lived under the bridge, waiting to eat all those who dared to pass. The troll wasn’t very smart, though. After being tricked by three goats (you can find the full story here), the bridge troll was never heard from again.

Unfortunately for many US companies, that’s not the case with the modern-day patent troll. Although patent trolls may be smarter than the bridge troll of the children’s story, they are still ...