Apple, the world's biggest patent trolls have escaped paying money after an appeals court upheld the lower court's ruling. Originally, Apple was on the hook for $625 million after a jury had found that Apple had infringed upon patents held by Mirror World, a company founded by Yale University computer-science professor David Gelernter.

Apple, of course, appealed the ruling, saying the damages were too high and asking the court to reevaluate the evidence. Six months later, U.S. District Judge Leonard Davis sided with Apple, throwing out the damages, saying that Mirror World didn't set enough foundation for its arguments.

"In this case, Mirror Worlds may have painted an appealing picture for the jury, but it failed to lay a solid foundation sufficient to support important elements it was required to establish under the law," Judge Davis wrote.

Of course, Mirror Worlds appealed, and that brings us to today's ruling in which the appeals court upheld the lower courts ruling, effectively saying Apple did not infringe upon Mirror World's patents. This is just one of the many lawsuits going on in the technology world.